| Post Name | Draftsman Grade I/Sub Engineer - Kerala Water Authority |
|---|---|
| Question Paper Code | 051/2025/OL |
| Category Code | 423/2024 |
| Date of Test | 17 June 2025 |
| Exam Type | Online Examination |
| Total Questions | 100 |
1
What is the size of a A3 sheet in mm as per Indian Standard Institution (I.S.I.)?
Answer
B. 420 x 297
2
In ļ¬rst angle orthographic projection
Answer
D. Elevation is drawn above the plan
3
In an orthographic projection, if a line is parallel to the vertical plane (VP) and inclined to the horizontal plane (HP), its top view will be
Answer
A. A line of smaller dimension
4
Which of the following conics has an eccentricity of unity?
Answer
B. Parabola
5
What is the shape of the development of the lateral surface of a cone?
Answer
C. Sector of a circle
6
The isometric projection of a circle is
Answer
C. Ellipse
7
Which of the following is the SI unit of force?
Answer
D. Kg m/
8
A body remains/continue in its state of rest or motion until it is disturbed by an external Force. This statement describes
Answer
B. Newton's First law of motion
9
When there is no relative motion between touching surfaces, which of the following frictional force is developed?
Answer
A. Static friction
10
Which part of the truss section is made to employ the method of joints in the free body diagram?
Answer
C. Joints
11
The forces, which meet at one point, but their lines of action do not lie in a plane, are called
Answer
D. Non coplanar concurrent forces
12
The center of gravity of a uniform lamina lies at its geometrical center, which is also called
Answer
B. Centroid
13
The possible loading in various members of framed structures is
Answer
A. Compression or tension
14
Moment of Inertia of a thin circular ring of radius r and mass M about an axis perpendicular to plane of ring is
Answer
D. MrĀ²
15
For a perfect frame, where 'n' is the number of members and 'j' is the number of joints, the relationship is given by
Answer
A. n = 2j-3
16
For a linearly elastic, isotropic and homogeneous material, which of the following statements is true regarding the elastic constants E (Young's modulus), G (Shear modulus), v (Poisson's ratio), and K (Bulk modulus)?
Answer
D. Knowing any two of these constants is suļ¬cient to compute the other two
17
A steel bar of length L is rigidly ļ¬xed between two unyielding supports. When the temperature of the bar is increased by ĪT, which of the following statements is true?
Answer
B. A compressive stress develops due to thermal expansion being restrained
18
In a beam subjected to transverse loading, analyzed under standard beam theory assumptions, the point where the shear force changes sign corresponds to :
Answer
B. A location of maximum or minimum bending moment
19
Consider a long slender column made of an isotropic and homogeneous material, with both ends pinned (hinged). According to Euler's column theory, which of the following statements is correct?
Answer
C. Euler's formula assumes buckling occurs without any material yielding.
20
A composite bar is formed by rigidly joining a steel rod and an aluminium rod side by side (i.e. parallel configuration), both of equal length and cross-sectional area. The composite is subjected to an axial load P. The Young's moduli of steel and aluminium are Eā and Eā respectively. What is the ratio of the load carried by the steel rod to that carried by the aluminium rod?
Answer
A. Eā/Eā
21
Two identical steel columns, Column A and Column B, have the same material, length, and cross-sectional dimensions, but diļ¬erent end conditions : Column A is hinged at both ends Column B is ļ¬xed at one end and free at the other Which of the following statements is correct?
Answer
D. Column B has higher slenderness ratio and lower critical load than Column A
22
A simply supported beam of length L carries a uniformly distributed load w (force per unit length) over its entire length. What is the maximum bending moment in the beam?
Answer
A. wLĀ²/8
23
Which of the following factors contributes most to the higher eļ¬ciency of welded joints compared to riveted joints?
Answer
A. Welded joints do not require overlap of plates
24
A cantilever beam of span 6 m carries a point of load of 12 kN at a distance of 2 m from the free end. What is the maximum bending moment in the beam?
Answer
C. 48 kNm
25
A gravity dam with a vertical upstream face has a height of 20 m and a base width of 30m. The dam retains water up to the top. Assume the water is static and the density of water is 1000 kg/ with gravitational acceleration g=9.8m/ . What is the total horizontal hydrostatic force exerted by the water on the dam per meter length?
Answer
B. 1960 kN
26
How does viscosity of ļ¬uids vary with increase in temperature?
Answer
C. Increases for gases, decreases for liquids
27
For a completely submerged body with centre of gravity 'G' and centre of buoyancy 'B', the condition of stability will be
Answer
A. G is located below B
28
If there are m physical quantities and n fundamental dimensions in a physical process, the number of non-dimensional parameters is
Answer
C. m-n
29
Bernoulli's equation is applied to
Answer
D. All of these
30
Euler's dimensionless number relates to the following
Answer
C. pressure force and inertial force
31
Which of the following is used for the measurement of rate of ļ¬ow in a river?
Answer
B. Weir
32
Gauge pressure is equal to
Answer
A. Absolute pressure - atmospheric pressure
33
An ideal ļ¬uid is deļ¬ned as the ļ¬uid which
Answer
C. is incompressible and inviscid
34
When is Bernoulli's equation applicable between any two points in a ļ¬ow ļ¬eld?
Answer
D. The ļ¬ow is steady, incompressible and irrotational
35
In order to have maximum power from a Pelton turbine, the bucket speed must be
Answer
B. Equal to half of the jet speed
36
Cavitation in a hydraulic reaction turbine is most likely to occur at the turbine
Answer
D. Rotor Exit
37
Which one of the following statements is TRUE?
Answer
D. Kalpan turbine is an axial - ļ¬ow reaction turbine
38
The extent of pressure produced due to water hammer depends on
Answer
D. All the above
39
In centrifugal pumps, maximum eļ¬ciency is obtained when the blades are
Answer
C. Bent backward
40
Low speciļ¬c speed of the turbine implies it is
Answer
C. Impulse turbine
41
In a centrifugal pump the sum of suction head and delivery head is known as
Answer
A. Static head
42
During the delivery stroke of a reciprocating pump, separation may take place
Answer
C. At the end of the stroke
43
Speciļ¬c speed of a turbine is deļ¬ned as a speed of turbine which
Answer
A. Produces unit power at unit head
44
Select the largest unit of energy
Answer
C. Calorie
45
Entropy is a
Answer
D. Point function, extensive property
46
Consider a Steady state, Steady ļ¬ow process, in a control volume. If the mass ļ¬ow rate entering the control volume is 5 kg/s. What is the mass ļ¬ow exiting the control volume
Answer
B. 5 kg/s
47
What is the air standard cycle for a gas turbine called?
Answer
C. Brayton cycle
48
A diesel power station has a fuel consumption of 0.43 kg per kwh, the caloriļ¬c value of fuel being 10,000 kcal/kg. The overall station eļ¬ciency of the station is (1kwh=860 kcal)
Answer
B. 20 %
49
The order of values of thermal efficiency of Otto, Diesel and Dual cycle, when they have equal compression ratio and heat rejection
Answer
D. Ī·āāāā>Ī·āįµ¤āā>Ī·āįµ¢įµāāā
50
Eļ¬ciency of practically used solar cell is approximately
Answer
B. 15 %
51
The major parts of a dumpy level are
Answer
D. All of the above
52
Pick the correct equation
Answer
A. Elevation of line of collimation = Known elevation + Back sight
53
Pick the correct statement regarding the adjustment of dumpy level
Answer
D. All of the above
54
A _____________ Curve is a curve of various radius introduced between a straight and a circular curve or between two circular curve facilitate change over from straight to curve or from one curve to another
Answer
B. Transition curve
55
Which data is not required for computation of various quantities for setting out the transition curve
Answer
D. None of the above
56
The part of theodolite carrying the leveling screws as called
Answer
A. Tribrach
57
Pick the modern surveying equipment to collect and process ļ¬eld data much more easily to a higher precision
Answer
D. All of the above
58
A line lying on the ground surface throughout and maintaining a constant inclination to the horizontal is called
Answer
B. Contour gradient
59
A small quantity of ______________ in brick earth imparts yellow tint to bricks and decreases the shrinkage.
Answer
B. Magnesia
60
A brick moulded with a double bullnose on end is called
Answer
B. Cownose brick
61
___________ are caused by the rupture of tissue in a circular direction
Answer
C. Cup shakes
62
Pick the reason for diļ¬cult in slaking of lime and increases the hydraulic property
Answer
A. Increase in percentage of clay
63
Pick the base material of an oil borne paint
Answer
Question Cancelled
64
The common ļ¬eld test adopted for ļ¬nding bearing capacity of soil
Answer
A. Standard Penetration test
65
The piles rest on hard strata under surface soil and transmit load to it is called
Answer
B. End bearing piles
66
In ___________ bond each course is comprised of alternate headers and stretchers
Answer
B. Flemish bond
67
Pick the tool used for brick masonry
Answer
D. All of the above
68
The lower edge of the inclined roof surface is called
Answer
C. Eaves
69
The area enclosed between the boundaries of the plot
Answer
D. None of the above
70
Pick the correct expression
Answer
A. Floor area ratio = Total ļ¬oor area on all ļ¬oors/plot area
71
The permitted maximum coverage (in percentage) for a residential building
Answer
A. 65 %
72
The maximum permitted ļ¬oor area ratio for Educational B type building
Answer
D. None of the above
73
The area of the habitable room shall be not less than
Answer
C. 9.5 square meters
74
Rapid hardening Portland cement having quick rate of gain of strength due to higher content of
Answer
A. Tricalcium Silicate
75
Which cement is used in sewage and water treatment plants?
Answer
C. Sulphate resisting cement
76
Which is the IS code for speciļ¬cation of Portland Pozzolana Cement?
Answer
A. IS 1489 : 1991
77
Slump height of concrete for canal lining is
Answer
B. 70 to 80 mm
78
Nominal cover provided for concrete exposed to moderate exposure should not be less than
Answer
D. 30 mm
79
The maximum diameter of reinforcing bars used in slab should not be greater than :
Answer
B. 1/8th of the thickness of slab
80
The minimum eccentricity as per IS 456 : 2000 for the design of column is:
Answer
A. l/500+D/30
81
Choose the correct statement from the following : I. Bleeding indicates the deļ¬ciency of coarse material in the mix. II. Segregation indicates poor aggregate grading III. As the slump increases, the compaction factor increases IV. The slump value of concrete used for trench ļ¬lling should be 100 to 150 mm
Answer
C. II, III and IV only
82
What is the minimum horizontal spacing between bars in a beam?
Answer
C. 5 mm + aggregate size
83
The stripping time for removal of props of beams of OPC concrete spanning over 6 m is
Answer
D. 21 days
84
The tensile strength of concrete is normally :
Answer
A. 10 - 15 % of its compressive strength
85
Trial mix test specimen after moulding are placed at a temperature of
Answer
D. 27Ā±2Ā°C
86
Coeļ¬cient of thermal expansion of steel is :
Answer
C. 0.000012/Ā°C
87
What is the unit of measurement of the following item as per CPWD Analysis of rates : Centering and shuttering, including strutting, propping, removal, etc., of form for : Edges of slabs and breaks in ļ¬oors and walls under 20 cm wide
Answer
B. Metre
88
As per CPWD data analysis, water charges accounts for
Answer
B. 1 % of the total cost before adding GST and contractor's proļ¬t and overhead charges
89
Which among the following does not come under outgoings while calculating income?
Answer
C. Year's purchase
90
What is the quantity of cement, coarse sand and graded stone aggregate required for of concrete of ratio 1:1:5:3?
Answer
A. 0.4 ton of cement, of coarse sand and of graded stone aggregate
91
What is the weight of reinforcement bar of 10 mm diameter having a length of 5 m?
Answer
B. 3.08 kg
92
What will be the total length of a bar of length L and diameter d if cranking is done at 30Ā° on two sides?
Answer
D. L+2x0.27d
93
When a sanctioned estimate is likely to be exceeded by more than 5% either from the rates being found insuļ¬cient due to change of price level or from any cause whatever, except important structural alternations, the estimate prepared is called
Answer
D. Revised estimate
94
In belting method of valuation for open land, what is the value of the second belt, if V1 is the value of the ļ¬rst belt?
Answer
B. 2V1/3
95
Find the expected time when optimistic time = 4, most likely time = 8 and pessimistic time = 12.
Answer
A. 8
96
If days, days, days, days and activity duration equal 12 days, calculate the free ļ¬oat
Answer
B. 6 days
97
In ABC analysis, A type items are those in which :
Answer
D. Accurate forecast of quantities is needed
98
Calculate the cost slope when normal time = 5 days, crash time = 3 days, normal cost = 5000 and crash cost = 2000:
Answer
A. 1500
99
The type of contract in which the contractor undertakes the execution of a speciļ¬c work with all its contingencies, to complete it in all respects within a speciļ¬ed time for a ļ¬xed amount is known as
Answer
D. Lumpsum contract
100
A scaled drawing of the proposal construction site showing all the relevant features like site entry and exit points, storage areas for materials, contractor's oļ¬ces, areas for keeping equipment and washing facilties, labour housing, toilets, medical facility etc.
Answer
C. Job layout
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