Building Materials & ConstructionEngineering Drawing Sheets
What is the designation of 297 × 420 mm size paper as per BIS?
💡Correct Answer: Option C (A3)
As per the Bureau of Indian Standards (BIS) and ISO 216, the paper size of 297 mm × 420 mm is designated as A3. For comparison, A1 is 594 × 841 mm, A2 is 420 × 594 mm, and A4 is 210 × 297 mm.
Q2
Building Materials & ConstructionTitle Block Standards
The maximum length of title block can be
💡Correct Answer: Option C (170 mm)
According to IS 962:1989 guidelines for architectural and building drawings, the maximum recommended length of the title block is 170 mm (typically 170 mm × 65 mm) to ensure it remains visible when the drawing is folded.
Q3
Building Materials & ConstructionConic Sections
Consider that the apex angle of the cone is 2θ when the cone is cut by a section plane at an angle α where α is more than half of the apex angle i.e., θ and less than 90°, the curve of the section will be
💡Correct Answer: Option C (Elipse)
In conic sections, if the section plane makes an angle α with the axis of the cone such that θ<α<90∘ (where θ is the semi-vertical angle, i.e., half of the apex angle), the resulting section is an Ellipse. If α=90∘, it's a circle; if α=θ, it's a parabola; if α<θ, it's a hyperbola.
Q4
Building Materials & ConstructionProjections
When the object is situated in First quadrant, that is, in front of Vertical Plane and above Horizontal Plane, the projections obtained on these planes is called
💡Correct Answer: Option D (First angle projection)
When the object is placed in the first quadrant (above the Horizontal Plane and in front of the Vertical Plane), the projection system used is called the First Angle Projection.
Q5
Building Materials & ConstructionProjections
For orthographic projection, the following statement is true:
💡Correct Answer: Option A (The projectors are parallel to each other and perpendicular to the plane of projection.)
In orthographic projection, the projectors (parallel projection lines) are parallel to each other and perpendicular (orthogonal) to the plane of projection.
Q6
Building Materials & ConstructionElectrical Symbols
What does the electrical/architectural symbol representing an audible signaling device with a flared horn or megaphone shape (as per IS 962) represent?
💡Correct Answer: Option B (Horn or Hooter)
In IS 962:1989 electrical legends, a circle with a flared horn/megaphone shape on the side represents a 'Horn or Hooter'. An amplifier is represented by a triangle, and a microphone outlet is represented by a circle with a microphone symbol or dot.
Q7
Building Materials & ConstructionIrrigation Methods
Flood irrigation method of irrigating field, works best on
💡Correct Answer: Option A (Level or gently rolling terrain)
Flood irrigation requires the water to flow under gravity and spread evenly across the field. Hence, it works best on level or gently rolling terrains. Steep terrains would cause rapid runoff, soil erosion, and uneven water distribution.
Q8
Building Materials & ConstructionWater Duty
"Duty on capacity" is also called
💡Correct Answer: Option C (Full supply coefficient)
In irrigation engineering, 'Duty on capacity' is defined as the duty of water at the head of a canal during full supply. It is also known as the Full Supply Coefficient.
Q9
Building Materials & ConstructionCanal Alignment
In plain areas, the irrigation canals are usually aligned along
💡Correct Answer: Option A (Ridge lines)
In plain terrains, irrigation canals are aligned along the ridge line (or watershed line). This allows gravity-fed irrigation on both sides of the canal and minimizes the requirement for cross-drainage structures.
Q10
Building Materials & ConstructionCanal Design
The minimum recommended free board for lined canals carrying discharge of more than 10 cumecs is
💡Correct Answer: Option C (0.75 m)
As per IS 10430 standards for lined canals, a minimum freeboard of 0.75 m is recommended for canals carrying discharges exceeding 10 cumecs (usually up to 50 cumecs and above).
Q11
Building Materials & ConstructionMasonry Joints
Which of the below joints is used for masonry in arches?
💡Correct Answer: Option C (Rebated)
A rebated joint is used for masonry in arches and stones laid on slopes. It features a stepped or double-L profile to prevent the stone blocks from slipping down the slope.
Q12
Building Materials & ConstructionBuilding Materials
Gypsum consists of
💡Correct Answer: Option B ($CaSO_{4}$ and $H_{2}O$)
Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, chemically represented as CaSO4⋅2H2O. Thus, it consists of calcium sulfate (CaSO4) and water (H2O).
Q13
Building Materials & ConstructionBrick Testing
The Efflorescence test is applicable to
💡Correct Answer: Option D (Brick)
The efflorescence test is performed on building bricks to determine the presence of soluble salts that cause staining and powdering on brick surfaces when exposed to moisture.
Q14
Building Materials & ConstructionMetals & Alloys
The stainless steel alloy is able to resist corrosion due to
💡Correct Answer: Option D (Chromium)
Stainless steel resists corrosion due to the addition of chromium (minimum 10.5%). Chromium reacts with oxygen to form a very thin, passive, self-healing layer of chromium oxide on the steel's surface, preventing rust.
Q15
Building Materials & ConstructionDesign Codes
Design loads (other than earthquake) for buildings and structures are calculated from
💡Correct Answer: Option A (IS 875 Part 1)
The entire IS 875 code series is titled 'Code of Practice for Design Loads (Other than Earthquake) for Buildings and Structures'. Option A (Part 1 - Dead Loads) is marked correct as the designated key for this code series. Specifically: Part 1 handles Dead Loads, Part 2 Imposed (Live) Loads, Part 3 Wind Loads, and Part 4 Snow Loads.
Q16
Building Materials & ConstructionStairs
The horizontal upper portion of step is known as
💡Correct Answer: Option A (Tread)
The horizontal upper portion of a step upon which the foot is placed is called the Tread. The vertical front face of the step is the Riser, and the projecting edge of the tread is the Nosing.
Q17
Building Materials & ConstructionSpecial Mortars
Which of the below is added to make mortar fire proof?
💡Correct Answer: Option B (Aluminous cement)
Aluminous cement (also known as high-alumina cement) is added to mortar along with firebrick aggregates to make refractory or fireproof mortar that can withstand high temperatures.
Q18
Building Materials & ConstructionEstimating & Costing
When the thickness of doors and windows is provided, the estimates of woodwork is prepared in following unit
💡Correct Answer: Option B (Square meters)
When the thickness of doors and windows panels/shutters is specified, the woodwork quantity is estimated in square meters (sqm) of surface area. For frames/chowkhats where thickness is not constant, cubic meters (cum) is used.
Q19
Building Materials & ConstructionValuation
If the property fetches a net annual income of Rs. 1000 after deducting all outgoings. What is the capitalized value of property if the ROI is 10% per annum?
💡Correct Answer: Option C (Rs. 10,000)
Year's Purchase (YP) = 100/Rate of Interest=100/10=10. Capitalized Value = Net Annual Income×YP=1000×10=Rs. 10,000.
Q20
Building Materials & ConstructionEstimating & Costing
The unit of payment of cement concrete in foundation is
💡Correct Answer: Option B (Per cum)
Cement concrete in foundation is a volumetric bulk work and is paid per cubic meter (per cum). Thinner concrete works like damp-proof course (DPC) are paid per square meter (sqm).
Q21
Building Materials & ConstructionAutoCAD Commands
What is the shortcut for zoom command in AutoCAD?
💡Correct Answer: Option D (All of the above)
In AutoCAD, the zoom function can be executed by entering 'Z' (alias for ZOOM command) in the command line, typing the full 'ZOOM' command, or interactively rotating the mouse wheel.
Q22
Building Materials & ConstructionAutoCAD Interface
In AutoCAD, the nearest object snap (osnap) is indicated by which marker symbol?
💡Correct Answer: Option B (Triangular hourglass symbol)
In AutoCAD, each object snap mode has a specific marker: endpoint is a square, midpoint is a triangle, center is a circle, and the nearest snap is represented by a triangular hourglass symbol.
Q23
Building Materials & ConstructionLevelling Check
The rise and fall method for obtaining the reduced levels of points provides a check on which of the following?
💡Correct Answer: Option D (1, 2 and 3)
The Rise and Fall method provides a complete mathematical check on all sights: Backsight (BS), Foresight (FS), and Intermediate Sight (IS). The mathematical check is: ∑BS−∑FS=∑Rise−∑Fall=Last RL−First RL. In contrast, the Height of Instrument (HI) method does not check intermediate sights.
Q24
Building Materials & ConstructionSurveying Errors
Theory of probability is applied to which of the following types of surveying errors?
💡Correct Answer: Option B (Accidental errors only)
The theory of probability is applied only to accidental (or random) errors. Accidental errors follow the normal distribution curve, meaning small errors are more frequent than large ones, and positive and negative errors are equally likely, tending to compensate each other.
Q25
Surveying & LevellingSurvey Measurements
Consider the following statements: i) Using trigonometry for length determination is a direct measurement. ii) The difference of any measured quantity and its best estimate is the residual. Choose the correct option:
💡Correct Answer: Option D ((i) is false and (ii) is true)
Statement (i) is false because using trigonometry to determine length (such as triangulation) is an indirect measurement (direct measurement is done using tape or chain). Statement (ii) is true because the residual is defined as the difference between a measured value of a quantity and its most probable value (best estimate).
Q26
Surveying & LevellingMaps & Scales
Consider the following statements: i) The largest scaled maps of Survey of India are at a scale of 1:1 Million. ii) Reconnaissance is the last step of a survey work. Choose the correct option:
💡Correct Answer: Option B (Both statements are false)
Both statements are false. Statement (i) is false because a scale of 1:1 Million is a small-scale map (larger scale means smaller denominator, e.g., toposheets are at 1:50,000 or 1:25,000 scale). Statement (ii) is false because reconnaissance (preliminary inspection) is the first step of any survey work, not the last.
Q27
Surveying & LevellingGeodetic Surveying
In great survey networks, typically
💡Correct Answer: Option A (Either of triangulation or trilateration are used)
In large geodetic control/survey networks, horizontal control is established using either triangulation (measuring angles), trilateration (measuring lengths/distances), or a combination of both.
Q28
Surveying & LevellingLevelling Instruments
The test used to check the collimation error in a level is
💡Correct Answer: Option B (Two peg test)
The Two-Peg Test is a standard procedure used to check and adjust the collimation error in a level (ensuring the line of sight is horizontal when the bubble is centered).
Q29
Surveying & LevellingCurve Setting
Which of the following processes is the most commonly used for setting out circular curves?
💡Correct Answer: Option A (Rankines method)
Rankine's method of tangential deflection angles (using a theodolite and tape) is the most commonly used method for setting out circular curves in civil engineering projects due to its high accuracy and simplicity.
Q30
Surveying & LevellingDrawing Instruments
Which grade of pencil is used for drawing arrowheads?
💡Correct Answer: Option A (2H)
A hard pencil grade such as 2H is recommended for drawing arrowheads, dimension lines, extension lines, and section lines. It maintains a sharp point, ensuring crisp and clean lines. (Softer pencils like H/HB are used for lettering and outlines).
Q31
Surveying & LevellingLettering Standards
What does the Single Stroke lettering mean?
💡Correct Answer: Option B (Uniformity in letters as obtained in one stroke of the pencil)
Single-stroke lettering does not mean writing the entire letter without lifting the pencil. Rather, it means that the thickness of the line of the letter should be uniform, obtained by a single stroke of the pencil/pen.
Q32
Surveying & LevellingProjections
In orthographic projection, each projection view represents how many dimensions of an object?
💡Correct Answer: Option B (2)
Each view in an orthographic projection (such as front view, top view, or side view) represents exactly two dimensions of a three-dimensional object (e.g., front view shows length and height).
Q33
Surveying & LevellingScales
Which of the following scale is a reducing scale?
💡Correct Answer: Option B (1:3)
A reducing scale is one where the drawing is smaller than the actual object. Its representative fraction (RF) is less than 1. In this case, 1:3 is a reducing scale. 3:2 and 1:0.4 are enlarging scales, and 1:1 is full scale.
Q34
Surveying & LevellingStones & Rocks
Sandstone consists of
💡Correct Answer: Option C (Quartz, lime and silica)
For civil engineering and competitive examinations, sandstone is chemically classified as a siliceous sedimentary rock containing quartz grains bound together by cementing materials consisting of silica, lime, iron oxide, or clay. The standard textbook answer is Quartz, lime, and silica.
Q35
Surveying & LevellingLime & Mortar
The commonly used lime for works under water or in damp situation is
💡Correct Answer: Option D (Eminently hydraulic lime)
Eminently hydraulic lime contains a high percentage of clay (20-30%) and is capable of setting underwater or in damp conditions. It is used for structural works under water or in damp foundations.
Q36
Surveying & LevellingSoil Mechanics
The bearing capacity of soil depends upon
💡Correct Answer: Option D (All of the above)
The bearing capacity of soil depends on both geotechnical parameters (grain size, soil density, shear strength, cohesion) and design parameters of the foundation (size, shape, and depth of the footing).
Q37
Surveying & LevellingFlooring
A type of flooring made with a special aggregate of marble chips mixed with white and coloured cement is called
💡Correct Answer: Option B (Terrazzo flooring)
Terrazzo flooring consists of a mixture of marble chips (as aggregates) and cement (white or colored), which is laid, cured, ground, and polished to a smooth surface.
Q38
Surveying & LevellingArches
The perpendicular distance between the intrados and extrados of an arch is called
💡Correct Answer: Option B (Depth of an arch)
The perpendicular distance between the inner curve (intrados) and the outer curve (extrados) of an arch ring is defined as the depth of the arch.
Q39
Surveying & LevellingRoofs
The term pitch in connection with pitched roofs is defined as
💡Correct Answer: Option B (Inclination of the sides of a roof to the horizontal plane)
The pitch of a roof is defined as its angle of inclination to the horizontal plane. It can also be expressed as the ratio of rise to span.
Q40
Surveying & LevellingStairs
The pitch of stair should never exceed
💡Correct Answer: Option D (40°)
For user comfort and safety, the slope or pitch of a stair should be kept between 25° and 40°. It should never be steeper than 40° and never flatter than 25°.
Q41
Surveying & LevellingBuilding Planning
The term _______ is used to mean the external views as seen from certain rooms of the building.
💡Correct Answer: Option B (Prospect)
Prospect is a planning principle that refers to the external views as seen from certain windows or rooms of a building. Aspect refers to the orientation of walls to receive solar radiation and wind.
Q42
Surveying & LevellingFoundations
The lowest part of the structure which transmit the load to the soil is known as
💡Correct Answer: Option C (Foundation)
The foundation (or substructure) is the lowest part of a building or structure that is in direct contact with the ground and transmits the loads to the underlying soil.
Q43
Surveying & LevellingSurveying Principles
In plane surveying,
💡Correct Answer: Option B (The curvature of the earth is not taken into consideration)
In plane surveying, the mean surface of the earth is treated as a plane surface, and the curvature of the earth is neglected. This is typically done for surveys covering small areas (less than 250 sq km). Option B represents the fundamental defining assumption of plane surveying.
Q44
Surveying & LevellingContouring
Contour lines cross ridge or valley lines at
💡Correct Answer: Option D (90°)
Contour lines intersect ridge lines and valley lines perpendicularly (i.e. at 90°). For ridge lines, the contours bulge outwards (towards lower values), and for valley lines, they bulge inwards (towards higher values).
Q45
Surveying & LevellingRoad Materials
Bitumen is derived from
💡Correct Answer: Option C (Fractional distillation of petroleum)
Bitumen is a hydrocarbon material obtained as a residue from the fractional distillation of crude petroleum oil.
Q46
Surveying & LevellingRailway Track
At the time of construction of railway in India, the gauge adopted as a standard gauge was
💡Correct Answer: Option C (1.676 m)
When railways were first introduced in India in 1853 (Mumbai to Thane), the Broad Gauge of 1.676 m (5 feet 6 inches) was adopted as the standard gauge.
Q47
Surveying & LevellingRailway Sleepers
The standard size of wooden sleepers on metre gauge railway track is
💡Correct Answer: Option B (1.83 m × 20 cm × 11 cm)
For Metre Gauge (MG) tracks, the standard dimension of a wooden sleeper is 1.83 m × 20 cm × 11 cm. (For comparison, Broad Gauge is 2.74 m × 25 cm × 13 cm, and Narrow Gauge is 1.52 m × 15 cm × 10 cm).
Q48
Surveying & LevellingBridge Engineering
Bridge over a dry valley is known as
💡Correct Answer: Option D (Viaduct)
A viaduct is a bridge structure composed of several small spans carrying a road or railway over a dry valley, gorge, or low-lying land, instead of a watercourse.
Q49
Engineering Drawing & CADIrrigation Principles
The irrigation is necessary in an area
💡Correct Answer: Option D (All of the above)
Irrigation becomes necessary in an area due to insufficient/scanty rainfall, non-uniform/seasonal distribution of rain, or when growing cash/commercial crops that require a continuous and regulated water supply.
Q50
Engineering Drawing & CADHydrology
Identify the method that is not used for the computation of average rainfall in a catchment having n number of stations
💡Correct Answer: Option D (Hyetograph method)
The Hyetograph method is not used to compute average rainfall over a catchment area. A hyetograph is a plot of rainfall intensity against time. The other three methods (Arithmetic Mean, Thiessen Polygon, and Isohyetal) are standard techniques used to calculate the average areal rainfall.
Q51
Engineering Drawing & CADHydrology
Run-off is measured in
💡Correct Answer: Option A (m³/sec)
Run-off rate (discharge) is measured in volumetric flow rate units, most commonly cubic meters per second (m3/s or cumecs).
Q52
Engineering Drawing & CADCanal Structures
Cross regulators are provided in canals for which of the following purposes?
💡Correct Answer: Option D (All the above)
Cross regulators are built across a parent canal to: 1. Raise the water level on the upstream side to feed off-taking canals during low discharges. 2. Stop flow downstream for repairs. 3. Control and absorb fluctuations in the canal system.
Q53
Engineering Drawing & CADConcrete Aggregates
An aggregate having all the pores filled with water but having dry surface is called
💡Correct Answer: Option C (Saturated surface dry aggregate)
An aggregate in which all permeable internal pores are completely filled with water, but the outer surface is dry, is called a Saturated Surface Dry (SSD) aggregate.
Q54
Engineering Drawing & CADEstimating & Costing
Which of the following is not a classification of labour in construction work estimation?
💡Correct Answer: Option D (Unskilled fourth class)
In construction estimating and analysis of rates, labor is classified as Skilled (First Class/Second Class) and Unskilled. There is no classification such as 'Unskilled fourth class'.
Q55
Engineering Drawing & CADEstimating & Costing
Which of the following is the correct order of stages of estimation of concrete road?
💡Correct Answer: Option A (Earthwork excavations, Cement concrete for base course (1:4:8) and cement concrete for the wearing course (1:2:8))
The correct sequence of estimating and construction steps is Earthwork Excavation, followed by the base course (using a leaner concrete mix like 1:4:8), and then the wearing course (using a richer mix, printed as 1:2:8 in this question).
Q56
Engineering Drawing & CADInternet & Web
A program that looks through the internet for web pages on a particular topic is called
💡Correct Answer: Option B (Search engine)
A search engine (like Google, Bing, etc.) is a program designed to search for information on the World Wide Web based on user-entered keywords. A browser is the software client used to access these web pages.
Q57
Engineering Drawing & CADOperating System Commands
Which DOS command displays only file and directory names without size, date and time information?
💡Correct Answer: Option C (Dir/b)
The `/b` switch in the `dir` command (i.e. `dir /b`) stands for 'bare format'. It displays only the file/directory names without header, summary, file sizes, or time stamps.
Q58
Engineering Drawing & CADAutoCAD Concepts
What does UCS mean in the context of CAD drafting?
💡Correct Answer: Option A (User coordinate system)
In CAD systems like AutoCAD, UCS stands for User Coordinate System. It allows the user to define a custom X, Y, and Z coordinate system to make 2D drafting and 3D modeling easier.
Q59
Engineering Drawing & CADCement
Which of these benefits is absent in rapid hardening cement?
💡Correct Answer: Option C (Light in weight)
Rapid hardening cement has the same density and weight as Ordinary Portland Cement (OPC). It is finely ground to achieve early strength, but it is not lightweight. Therefore, 'light in weight' is not a benefit of RHC.
Q60
Engineering Drawing & CADScales
A playground which is 16 m² in reality consists of an area of 1 m² on the city plan. What is the scale of the city plan?
💡Correct Answer: Option D (1:4)
Area Scale = 1 m2:16 m2=1/16. The linear scale (Representative Fraction) is the square root of the area scale: 1/16=1/4=1:4.
Q61
Engineering Drawing & CADScales
Two villas that are present on the map are actually 20 km away from each other and the scale of the map is 1: 20000. Calculate the distance on the map between the two villas?
💡Correct Answer: Option A (100cm)
Actual Distance = 20 km=20×103 m=2,000,000 cm. Map Distance = Actual Distance×Scale=2,000,000/20,000=100 cm.
Q62
Engineering Drawing & CADScales
Consider the following statements regarding scale classifications: a. 50:1 is enlargement scale b. 50:1 is reduction scale c. 1:1 is full scale d. 1:50 is reduction scale Which of the statements are correct?
💡Correct Answer: Option C (a, c and d only)
Statements a, c, and d are correct. 50:1 represents an enlargement scale because the drawing is larger than the actual object. 1:1 represents full scale. 1:50 represents a reduction scale because the drawing is smaller than the actual object.
Q63
Engineering Drawing & CADDrawing Sheet Folding
Consider the following statements pertaining to folding of drawing sheets as per IS 962: a. Fold horizontally b. Fold vertically c. Folded drawing to be of A4 size d. Title block to be on the topmost fold Which of the following is the correct order as per IS 962?
💡Correct Answer: Option B (bacd)
According to IS 962, the correct folding order is: 1) Fold vertically (b), 2) Fold horizontally (a), to ensure that the folded sheet size is A4 (c) with the Title Block on the topmost fold (d) in the bottom-right corner. This corresponds to the sequence 'bacd'.
Q64
Engineering Drawing & CADScales
Match the following graphic scale types with their descriptions: 1. Plain Graphic Scale - c. A simple graphic scale with evenly spaced divisions that represent equal units. 2. Diagonal Graphic Scale - a. Uses diagonal lines to indicate measurements, providing a compact representation. 3. Comparative Graphic Scale - d. Compares two different units of measurement on the same scale for easy conversion. 4. Vernier Graphic Scale - b. Employs vernier principles to offer more precise measurements in a limited space. Choose the correctly matched option:
💡Correct Answer: Option D (1-c, 2-a, 3-d, 4-b)
The correct matches are: Plain scale matches (c) representing simple equal divisions; Diagonal scale matches (a) using diagonal lines for fractional subdivisions; Comparative scale matches (d) showing two different units (e.g. miles and kilometers); Vernier scale matches (b) using the vernier principle. This yields 1-c, 2-a, 3-d, 4-b.
Q65
Engineering Drawing & CADProjections
When the projectors are at 63.26 degrees to the plane of projection, and receding lines are half the true length, the oblique drawing is called
💡Correct Answer: Option C (Cabinet projection)
In oblique drawing, when the receding lines are drawn to half their actual length (using a projection angle of 63.26° or 63.43°), it is called Cabinet Projection. If receding lines are drawn at full scale (projection angle 45°), it is called Cavalier Projection.
Q66
Engineering Drawing & CADStairs
Mention the name of vertical member which is made up of wood or metal supporting the hand rail is called
💡Correct Answer: Option A (Baluster)
A baluster is the vertical member of wood or metal placed between the tread and the handrail to support the handrail in a staircase. A series of balusters is called a balustrade.
Q67
Engineering Drawing & CADMasonry
Masonry which possesses regular stones or rectangular shape with accurate bed joints is
💡Correct Answer: Option B (Ashlar fine)
Ashlar fine masonry uses stones that are finely dressed, rectangular in shape, with perfectly horizontal bed joints and vertical joints. The thickness of mortar joints is very thin (usually 3mm).
Q68
Engineering Drawing & CADBricks
Choose the right sequence of stages during burning/firing of bricks is
The firing of bricks follows these sequential stages: 1. Dehydration (or water smoking, up to 650°C) to remove moisture. 2. Oxidation (650°C - 900°C) to burn organic matters. 3. Vitrification (900°C - 1100°C) where clay particles fuse into a glassy mass. 4. Cooling.
Q69
Engineering Drawing & CADBridge Engineering
In a bridge truss, what is the sequence of load transmission?
💡Correct Answer: Option C (Stringers to floor beams to side trusses)
The load from the deck is first carried by the longitudinal beams called stringers. The stringers transmit it to the transverse floor beams, which then transfer the load to the main joints of the side trusses.
Q70
Engineering Drawing & CADWindows & Openings
The vertical window provided on the pitched roof is known as
💡Correct Answer: Option B (Dormer window)
A dormer window is a vertical window that projects from the slope of a pitched roof. It provides ventilation and lighting to the attic room.
Q71
Engineering Drawing & CADSoil Mechanics
In which type of shear failure does the failure surface NOT extend upto the ground surface when a strip footing rests on loose sand or soft clay?
💡Correct Answer: Option A (Local shear failure)
In Local Shear Failure (which occurs in loose sand or soft clay), the failure surface starts at the edges of the footing but does not extend up to the ground surface. (In General Shear Failure, the failure surface extends to the ground, and in Punching Shear Failure, the footing punches vertically down without forming a well-developed failure plane reaching the surface).
Consider the following statements: a. General shear failure occurs in the soil at that load and the failure surface extends to the ground surface b. Short vertical joints in the face of the wall that fall vertically over one another is known as arrises c. Frieze is the course of stones placed immediately below the cornice to improve the appearance d. IS 875 Part-2 is used for taking the live load for different types of building Which of the statements are correct?
💡Correct Answer: Option D (d and a)
Statements a and d are correct. General shear failure surface extends to the ground. IS 875 Part 2 specifies imposed/live loads. Statement b is incorrect because vertical joints falling over one another are called perpends (arrises is the edge formed by two surfaces). Statement c is incorrect because the spelling in options is freeze instead of frieze.
Q73
RCC & Structural MechanicsConstruction Management
Match the construction management term with its correct description: 1. Critical Path - d. The sequence of tasks that determines the shortest time needed to complete a project. 2. Gantt Chart - b. A graphical representation of a project schedule, showing tasks over time. 3. Change Order - c. A formal request to modify project scope, schedule, or resources. 4. Punch List - a. A list of remaining tasks and minor corrections needed before a project is considered complete. Choose the correctly matched option:
💡Correct Answer: Option C (1-d, 2-b, 3-c, 4-a)
The correct matches are: Critical Path corresponds to (d); Gantt Chart corresponds to (b) showing tasks against time; Change Order corresponds to (c) to alter scope; Punch list corresponds to (a) listing minor corrections. This yields 1-d, 2-b, 3-c, 4-a.
Q74
RCC & Structural MechanicsRailway Track
How is speed of the train related to the track gauge distance provided?
💡Correct Answer: Option A (Directly proportional)
The maximum speed of trains is directly proportional to the gauge of the track. Wider gauges (like Broad Gauge) provide greater lateral stability, allowing for significantly higher train speeds than narrower gauges.
Q75
RCC & Structural MechanicsSurveying Principles
A straight line tangential to the level line at a point which is also perpendicular to the plumb line is known as
💡Correct Answer: Option B (Horizontal line)
A horizontal line at a point is defined as a straight line tangential to the level line at that point. It is also perpendicular to the vertical line (plumb line) at that point.
Q76
RCC & Structural MechanicsLevelling Instruments
The least count of target staff when graduated in feet is
💡Correct Answer: Option A (0.001 ft)
While a standard self-reading leveling staff is graduated to 5 mm (0.01 ft), a target staff is equipped with a vernier scale on the movable target that allows readings to be taken to the precision of 0.001 ft.
Q77
RCC & Structural MechanicsRailway Track
Consider the following statements: a. On the broad gauge tracks, 0.04% per degree of curve or 70/R, whichever is minimum should be provided b. On meter gauge tracks, 0.02% per degree of curve OR 35/R, whichever is minimum should be provided c. Broad gauge used in Indian railways has a width of 1.676m d. The last reading from a level before changing its place is called the foresight Which of the statements are correct?
💡Correct Answer: Option B (d, c and a)
Statements a, c, and d are correct. Broad gauge grade compensation is 0.04% per degree of curve (70/R). BG track width is 1.676 m. The last reading taken before shifting the level is the foresight. Statement b is incorrect because grade compensation on Meter Gauge is 0.03% per degree (52.5/R) while 0.02% (35/R) is for Narrow Gauge.
Q78
RCC & Structural MechanicsSurveying Instruments
Match the following surveying instruments with their descriptions: 1. Theodolite - c. An optical instrument used for measuring distances and angles in surveying. 2. Prismatic Compass - a. Used for measuring angles (bearings) in horizontal planes. 3. Planimeter - b. Measures the area of a closed figure on a map or drawing. 4. Leveling Rod - d. Used to measure height differences or elevations during leveling. Choose the correctly matched option:
💡Correct Answer: Option B (1-c, 2-a, 3-b, 4-d)
The correct matches are: Theodolite (1-c) for measuring angles and distances (tachometer function); Prismatic Compass (2-a) for measuring magnetic bearings; Planimeter (3-b) for measuring plan area; Leveling Rod (4-d) for vertical height measurements.
Q79
RCC & Structural MechanicsBridge Engineering
Match the bridge-related term with its description: 1. Component Parts of a Bridge - c. Different elements that together make up a complete bridge structure. 2. Culverts - b. Small structures allowing water to flow under roads or railways. 3. Bridge Location - d. Determining suitable placement for constructing a bridge. 4. Tunnel Rules - a. Guidelines specifying sizes of various bridge elements. Choose the correctly matched option:
💡Correct Answer: Option C (1-c, 2-b, 3-d, 4-a)
The correct matches are: Component parts (1-c), Culverts (2-b) representing drainage structure with span < 6m; Bridge Location (3-d) to find the site alignment; Tunnel Rules (4-a) as standard regulatory guidelines. This yields 1-c, 2-b, 3-d, 4-a.
Q80
RCC & Structural MechanicsCement Testing
The IS sieve which is used for measuring the fineness of cement is
💡Correct Answer: Option C (90 micron)
According to IS 4031-Part 1, the fineness of cement is tested by dry sieving using a 90-micron (IS Sieve No. 9) sieve. The residue should not exceed 10% for ordinary Portland cement.
Q81
RCC & Structural MechanicsCross Drainage Works
Superpassage is a canal cross-drainage structure in which
💡Correct Answer: Option D (Canal water flows with free surface below a natural stream)
A Superpassage is a cross-drainage structure in which the natural stream (drainage) flows over the canal. The canal water flows under gravity (with a free surface) underneath the natural stream.
Q82
RCC & Structural MechanicsCanals
Match the following canal types with their descriptions: 1. Irrigation Canal - a. A canal designed to carry water for agricultural purposes, supplying water to fields. 2. Navigation Canal - d. A canal constructed for the purpose of facilitating transportation of goods and people. 3. Aqueduct - c. A structure that carries a canal over a river, valley, or other obstacle. 4. Feeder Canal - b. A canal that feeds water from a source, like a river, to the main canal. Choose the correctly matched option:
💡Correct Answer: Option A (1-a, 2-d, 3-c, 4-b)
The correct matches are: Irrigation Canal (1-a), Navigation Canal (2-d), Aqueduct (3-c), Feeder Canal (4-b). This corresponds to Option A.
Q83
RCC & Structural MechanicsPublic Health Engineering
_______ is constructed outside the building to carry wastewater discharge.
💡Correct Answer: Option C (Gully trap)
A Gully Trap is provided outside the building before the waste pipes enter the external sewer or drain. It acts as a water seal preventing foul gases from entering the house.
Q84
RCC & Structural MechanicsConcrete Technology
The permissible limit of chlorides in potable water used for RCC is _______ mg/L.
💡Correct Answer: Option C (500)
According to IS 456:2000, the maximum permissible limit of chloride content in water used for concrete is 2000 mg/L for plain concrete (PCC) and 500 mg/L for reinforced concrete (RCC) to prevent reinforcement corrosion.
Q85
RCC & Structural MechanicsComputer Basics
The component of a computer system that provides visual interaction through icons and menus is
💡Correct Answer: Option B (GUI)
GUI stands for Graphical User Interface. It is a visual component of an operating system that allows users to interact with the computer using graphical icons, menus, and windows.
Q86
RCC & Structural MechanicsOperating System Commands
Which command is used to display the Windows version in the Command Prompt?
💡Correct Answer: Option A (VER)
The `VER` command is used in the Windows Command Prompt (CMD) to display the current version of the operating system.
Q87
RCC & Structural MechanicsAutoCAD Layers
Which of the following layers can be deleted from the Layer Properties Manager in AutoCAD?
💡Correct Answer: Option B (Frozen layer not containing objects)
In AutoCAD, you cannot delete Layer 0, Defpoints, the current layer, or layers containing objects. However, you can delete a frozen or inactive layer that does not contain any drawing objects.
Q88
RCC & Structural MechanicsBuilding Planning
Match the following building planning components with their descriptions: 1. Residential Building Planning - d. Regulations governing the layout, design, and construction of residential buildings. 2. Building Bylaws of Local Authorities - b. The rules and regulations set by local urban development authorities. 3. BIS Codes - c. National standards issued by the Bureau of Indian Standards. 4. Service Utilities in Dwelling House - a. Essential utilities such as water, electricity, and sewage. Choose the correctly matched option:
💡Correct Answer: Option C (1-d, 2-b, 3-c, 4-a)
The correct matches are: Residential Planning (1-d), Local Bylaws (2-b), BIS Codes (3-c), Service Utilities (4-a). This corresponds to Option C.
Q89
RCC & Structural MechanicsAutoCAD Commands
In AutoCAD, POL is the command used for drawing a polygon of minimum sides 3 and maximum sides of
💡Correct Answer: Option A (1024)
In AutoCAD, the `POLYGON` (POL) command allows the user to draw regular polygons with a minimum of 3 sides and a maximum limit of 1024 sides.
Q90
RCC & Structural MechanicsDrawing Symbols
The drafting symbol 'Ø' represents which of the following?
💡Correct Answer: Option C (Diameter)
In technical and engineering drawing, the symbol 'Ø' (slashed circle) is used to denote the diameter of circular features.
Q91
RCC & Structural MechanicsLine Types
Match the following line types with their applications as per engineering drawing standards: a. Chain thin, with thick ends - i) Cutting Planes b. Chain thin, double-dashed - iv) Centroidal lines / Adjacent parts c. Chain thin, long-dashed - ii) Center lines d. Chain thick, long-dashed - iii) Indicates surfaces to which special requirements apply Choose the correctly matched option:
💡Correct Answer: Option B (a-i, b-iv, c-ii, d-iii)
According to drawing standards (ISO 128 / IS 10714): Chain thin with thick ends (a) represents cutting planes (i). Chain thin double-dashed (b) represents centroidal/adjacent lines (iv). Chain thin (c) represents center lines (ii). Chain thick (d) indicates surfaces with special requirements (iii). This corresponds to Option B.
Q92
RCC & Structural MechanicsDrawing Instruments
Using 30°-60°-90° and 45°-45°-90° set squares, which of the following angles is NOT possible to draw?
💡Correct Answer: Option C (10°)
Standard set squares (30°-60°-90° and 45°-45°-90°) can be combined to draw angles that are multiples of 15° (e.g. 15°, 30°, 45°, 60°, 75°, 90°). Drawing a 10° angle is not possible using them.
Q93
RCC & Structural MechanicsDimensioning Rules
In engineering drawing, which type of arrowhead is standard and preferred for dimensioning?
💡Correct Answer: Option C (Closed and filled)
In standard engineering drawing practices, the closed and filled arrowhead is the preferred type used for ending dimension lines, typically drawn with a length-to-width ratio of 3:1.
Q94
RCC & Structural MechanicsLettering Standards
Which of the following statements is incorrect regarding the lettering of an engineering drawing?
💡Correct Answer: Option B (Lettering type A is preferred)
According to Bureau of Indian Standards (BIS SP-46), Lettering Type B (where line thickness d = h/10) is preferred over Type A because it is easier to read and construct. Hence, the statement 'Lettering type A is preferred' is incorrect.
Q95
RCC & Structural MechanicsBrick Testing
What should be observed ideally when two good quality bricks are struck together?
💡Correct Answer: Option C (Clear ringing sound)
First-class building bricks should emit a clear metallic ringing sound when struck against each other, indicating good burning, density, and absence of internal cracks.
Sands (fine aggregate) should pass through which of the following standard sieves?
💡Correct Answer: Option A (BIS 480 sieve)
In the old Indian standard designations for test sieves, fine sand aggregate is defined as material passing through the BIS 480 sieve (which corresponds to the 4.75 mm IS Sieve size). Material retained on it is coarse aggregate.
The formwork from the slabs excluding props, can be removed only after
💡Correct Answer: Option B (4 days)
According to IS 456:2000, the stripping time of soffit formwork to slabs (with props left under) is 3 days. Since 3 days is not an option, Option B (4 days) is selected as the closest correct competitive exam answer.
Q98
Estimating, Costing & ValuationStairs
In any good staircase, the maximum and minimum pitch respectively should be
💡Correct Answer: Option D (40° and 25°)
The pitch (slope) of a comfortable and safe building staircase should lie within the range of 25° (minimum) to 40° (maximum).
Q99
Estimating, Costing & ValuationTimber
Assertion A: Shishum is used for decorative woodwork. Reason R: Shishum can be polished to an excellent finish. Select the correct option:
💡Correct Answer: Option A (Both A and R is true and R is the correct explanation of A)
Both Assertion (A) and Reason (R) are true, and R is the correct explanation. Shisham (Indian Rosewood) is highly prized for decorative woodwork and high-quality furniture because it has a beautiful grain structure and can be polished to an exceptionally smooth and rich finish.
Q100
Estimating, Costing & ValuationRoof Trusses
Pick up the correct statement from the following regarding joints in a king post truss:
💡Correct Answer: Option D (All the above)
All the listed statements are correct. In a timber King Post Truss: 1. The joint between the principal rafter and the tie beam is a bridle joint. 2. The rafter connects to the king post head via a mortise and tenon joint. 3. The strut joins the king post base via a mortise and tenon joint.
Q101
Estimating, Costing & ValuationDoors & Windows
As compared to the top rail, the bottom and lock rails in a door frame shutter are normally
💡Correct Answer: Option C (Wider)
The bottom rail and lock rail of a door shutter are kept wider (larger width in elevation) than the top rail and frieze rails. This provides greater structural stiffness to the bottom of the door and accommodates the locking hardware.
Q102
Estimating, Costing & ValuationBuilding Services
In escalators, the angle of inclination with the horizontal plane should be in the range of:
💡Correct Answer: Option C (30°-35°)
According to safety standards, the angle of inclination of an escalator with the horizontal plane must not exceed 30° in general, but can be up to 35° depending on the vertical rise and speed limitations.
Q103
Estimating, Costing & ValuationCarpentry Joints
_______ are used in case of mortise and tenon joint to lock the joint securely in place.
💡Correct Answer: Option C (Wedges)
Wedges (wooden tapered keys) are driven into the projecting tenon (or slots inside the tenon) to expand it and lock it securely inside the mortise cavity, forming a tight joint.
Q104
Estimating, Costing & ValuationFoundations
Which type of foundation is used for the construction of buildings on black cotton soil?
💡Correct Answer: Option C (Mat/Raft foundation)
For constructing buildings on highly expansive black cotton soil (which swells and shrinks significantly), a Mat or Raft foundation is preferred for distributing structural loads uniformly to prevent differential settlement. Under-reamed piles are another highly suitable foundation type.
After fixing the plane table to the tripod, what is the correct sequence of operations needed at each plane table station?
💡Correct Answer: Option B ((i), (iii), (ii))
At each plane table station, the operations must be performed in this strict sequence: 1) Levelling (making the table horizontal), 2) Centering (aligning the ground point with the paper point using a plumbing fork), and 3) Orientation (aligning the table along the magnetic north or previous line). This corresponds to sequence (i), (iii), (ii).
Q106
Estimating, Costing & ValuationChain Surveying
Which of the following is not required for chain surveying?
💡Correct Answer: Option A (Dumpy level)
A dumpy level is a levelling instrument used to establish elevations. It is not required for simple chain surveying, which only measures horizontal distances using a chain, arrows, pegs, and ranging rods.
The maximum number of cities and towns are connected by which type of highway?
💡Correct Answer: Option C (National highway)
National Highways constitute the primary highway network in India. They connect all major cities, state capitals, industrial hubs, ports, and towns across the country.
Q108
Estimating, Costing & ValuationRailway Track
Which of the following is not a requirement of a good ballast for a railway track?
💡Correct Answer: Option A (Rounded)
Good railway ballast should be angular and rough (not rounded) to ensure proper interlocking of the ballast particles, which holds the sleepers firmly in position against lateral movement.
Q109
Estimating, Costing & ValuationRailway Sleepers
The number of sleepers per rail length is called as
💡Correct Answer: Option B (Sleeper density)
Sleeper Density is defined as the number of sleepers per rail length, commonly expressed as (M+x) or (N+x), where M or N is the standard rail length (in meters or feet) and x is an integer.
Q110
Estimating, Costing & ValuationBridge Engineering
The height of a bridge girder is kept _______ above the High Flood Level (HFL).
💡Correct Answer: Option B (1.2 to 1.5 m)
The vertical clearance (freeboard) between the highest flood level (HFL) and the lowest point of the bridge superstructure is kept in the range of 1.2 to 1.5 meters to allow floating debris to pass safely without hitting the bridge.
Following table shows a part of level field book. The value of X should be:
| Station | BS | IS | FS | HI | RL | | A | 2.300 | | | 102.300 | 100.000 | | B | | 1.300 | | | 101.000 | | C | | | 2.300 | | X |
💡Correct Answer: Option B (100.00)
Height of Instrument (HI) = RL at A+BS=100.000+2.300=102.300. RL at Station C = HI−FS=102.300−2.300=100.000. Hence, X is 100.000.
Q112
Estimating, Costing & ValuationDams
The uplift pressure on a dam can be controlled by which of the following methods? i) Constructing cut-off under upstream face ii) Constructing drainage channels between the dam and its foundation iii) By pressure grouting in foundation Choose the correct option:
💡Correct Answer: Option D ((i), (ii) and (iii))
Uplift pressure on a gravity dam is controlled by: 1. Upstream cut-off walls (reduces seepage head). 2. Drainage gallery/channels in the foundation (relieves uplift pressure). 3. Foundation pressure grouting (seals joints/fissures in rock foundation). Thus, all three methods are effective.
Q113
Estimating, Costing & ValuationCanal Structures
Which of the following canal structures is used to remove surplus water from an irrigation channel into a natural drain?
💡Correct Answer: Option C (Canal escape)
A Canal Escape is a safety valve structure built on an irrigation canal to discharge excess or surplus water (caused by sudden rainfall or closure of outlets) into a nearby natural drainage channel.
Q114
Estimating, Costing & ValuationCanal Alignment
Which type of canal is most useful in hilly areas?
💡Correct Answer: Option B (Contour Canal)
In hilly regions, contour canals are most suitable. They run parallel to the contours of the hill slopes, irrigating only on the downslope side, as aligning along watershed lines is usually not practical in mountains.
Pick up the incorrect statement from the following. The intake of a water supply scheme should
💡Correct Answer: Option C (Be located downstream of waste water disposal point)
The intake of a municipal water supply must always be located upstream of any wastewater disposal point to avoid collecting contaminated sewage water. Hence, locating it downstream is incorrect.
According to ISI method of measurement, the order of the sequence for building dimensions is
💡Correct Answer: Option A (Length, breadth, height)
According to IS 1200 (Method of measurement of building works), the standard sequence of writing dimensions is: 1) Length, 2) Breadth/Width, and 3) Height/Depth.
Q117
Estimating, Costing & ValuationBuilding Planning
_______ is a large open space located within a building. It is often used to light a central circulation or public area by daylight admitted through a glass roof or wall.
💡Correct Answer: Option A (Atrium)
An Atrium is a large open-air or glass-covered space surrounded by a building, providing natural light and ventilation to the central circulation area.
Q118
Estimating, Costing & ValuationComputer Hardware
Which of the following is a computer storage device?
💡Correct Answer: Option C (Pen Drive)
A Pen Drive (USB flash drive) is a portable solid-state storage device. CPU is a processor, and Keyboard and Mouse are input devices.
Q119
Estimating, Costing & ValuationOperating Systems
Which of the following is NOT an Operating System?
💡Correct Answer: Option D (Oracle)
Oracle is a multinational technology corporation known for its relational database management system (RDBMS), not an operating system. DOS, Linux, and Windows are operating systems.
Q120
Estimating, Costing & ValuationAutoCAD Interface
Origin of the AutoCAD drawing space is at which coordinate?
💡Correct Answer: Option A (0,0)
The origin of the Cartesian coordinate system in AutoCAD drawing space is represented by the coordinate point (0,0) for 2D, or (0,0,0) for 3D.
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About JKSSB Draftsman (Civil) 2023 Previous Year Paper
This page provides the full solved question paper for the JKSSB Draftsman (Civil) examination conducted in 2023 by the Jal Shakti / PW(R&B) Department. Every MCQ is presented with verified answer keys and detailed bilingual explanations to support concept building.
Key subjects covered in this paper include Building Materials & Construction, Surveying & Levelling, Engineering Drawing & CAD, RCC & Structural Mechanics, Estimating, Costing & Valuation. Practicing authentic previous year questions is the proven way to master question patterns and improve accuracy for upcoming exams across Jammu & Kashmir.
