The model questions and answers for the Kerala Public Service Commission Assistant Engineer (Civil) examination are given below. You may also download the questions in PDF format with answers.
Kerala PSC Assistant Engineer (Civil) Model Questions
1
The terminal velocity of a small sphere settling in a viscous fluid varies as the
Answer
D. inverse of fluid viscosity
2
A cement bag contains 0.035 cubic meter of cement by volume. How many bags will one tonne of cement comprises
Answer
D. 20
3
Efflorescence of bricks is due to
Answer
A. Soluble salts present in clay for making bricks
4
Which of the following constituent in earth gives plasticity to mould bricks in suitable shape
Answer
C. Alumina
5
The compound which contributes the highest share of heat of hydration in cement is
Answer
B. Tricalcium aluminate
6
Putty is made up of .
Answer
B. Powdered chalk and raw linseed oil
7
In making Concrete ,maximum density is achieved by,
Answer
C. Controlling the particle size distribution of the ingredient
8
which one of the following is not a vehicle in paints
Answer
D. Turpentine oil
9
In high tensile steel carbon should be less than
Answer
B. 0.15 %
10
The head room for a staircase should not be less than
Answer
C. 2.10m
11
The ratio of cement mortar preferred in load bearing walls in brick masonry is
Answer
B. 1: 6
12
A curtain wall carries
Answer
B. Self weight
13
In ordinary residential and public buildings ,the DPC is provided at
Answer
A. Plinth level
14
Laterite is a
Answer
A. argillaceous rock
15
Marble is
Answer
B. metamorphic rock
16
In any case the bearing of lintel should not be less than
Answer
B. 150 mm
17
The resultant of two equal forces(F) acting in opposite directions will be
Answer
D. zero
18
The set of forces ,whose resultant is zero, are known as
Answer
A. equilibrium forces
19
The centre of gravity of a plane lamina is not at its geometrical centre if it is a
Answer
D. right angled triangle
20
A system of coplanar forces is in equilibrium when
Answer
C. both force and funicular polygon closes
21
The diagram showing the point of application and line of action of forces in their plane is called
Answer
B. space diagram
22
The specification of earth work in foundation trenches,drains etc. Lift ordinarly specified is
Answer
B. 1.50 m
23
In analysis of rates contractors profit is taken at the rate of
Answer
C. 10%
24
One cubic metre of cement concrete (1:2:4) is to be mixed by volume .Number of cement bags required approximately will be
Answer
A. 6
25
The thickness of plastering to masonry wall is usually
Answer
D. 12 mm
26
In a detailed estimate the provision for contingencies is,usually
Answer
B. 3% to 5%
27) Original cost of property minus depreciation is
A) book value
B) salvage value
C) capital value
D) obsolence value
Answer: A) book value
28
while submitting a tender the contractor is required to deposit some amount with the department, as guarantee of the tender known as
Answer
D. earnest money
29
For a comfortable ascent of stairway the number of steps in a flight should be restricted to a maximum of
Answer
B. 12
30
Construction of temporary structure to support an unsafe structure is known as
Answer
A. Shoring
31
Which of the following is not an excavating equipment
Answer
B. Scrapper
32) An Ideal flow of any fluid must fulfill the
A) Neweton’s Law of Viscosity
B) Neweton’s Law of Motion
C) Boundary layer Theory
D) Continuity Equation
Answer: D) Continuity Equation
33
A cubical tank is filled with water. If side of tank is 1m ,pressure on the base of the tank will be
Answer
C. 1000 kg
34
The buoyancy depends upon the
Answer
B. weight of the liquid displaced
35
block of wood 2m long, 2m wide and 1m deep is floating horizontally in water. If density of wood is 800 kg/m3, then the volume of water displaced will be
Answer
A. 3.2 cum
36
The flow in a pipe or channel is said to be uniform when
Answer
A. The liquid particles at all sections have the same velocities
37
Flow in a pipe is laminar if the Reynold's number is
Answer
D. less than 2000
38
Two pipe systems in series are said to be equivalent when
Answer
D. the discharge under the same head is same in both the systems
39
In open channel water flows under
Answer
A. force of gravity
40
weir may be used to measure
Answer
C. discharge in a river or channel
41
The direction of flow of liquid in a propeller pump impeller is in
Answer
B. axial direction
42
The ratio of volume of voids to the total volume of the given soil mass, is known as
Answer
A. porosity
43
Dry density of soil is
Answer
C. ratio of the weight of soil solids to the total volume
44
The effective size of a soil is
Answer
A. D10
45
A soil having uniformity coefficient more than 10 is called
Answer
D. well graded soil
46
The property of a soil which permits flow of water through its interconnected voids is called
Answer
C. permeability
47
The functional equation for specific gravity G ,water content w,void ratio e and degree of saturation Sr is
Answer
C. Sr= wG/e
48
The law states that in laminar flow in a saturated soil, the velocity is directly proportional to the hydraulic gradient is called
Answer
C. Darcy's law
49
The gradual reduction in volume of a soil mass resulting from an increase in and continued application of compressive stress and is due to expulsion of water from the pores is called
Answer
B. consolidation
50
The minimum size of plate in plate load test is
Answer
D. 300 mm
51
Bearing capacity should be calculated from the criteria of
Answer
C. both settlement and shear
52
Floating foundation is a type of
Answer
D. Raft foundation
53
A shallow foundation is a foundation that
Answer
B. has a depth of embedment less than its width
54
Diameter of a circular footing is 3m and side of a square footing is 3m.Both the footings are in the same soil(c-Ø) at same depth. The ultimate bearing capacity of circular footing is
Answer
A. less than square footing
55
The energy stored in a material within elastic limit when it is under strain is called
Answer
C. resilience
56
The property of a material enabling it to resist deformation under stress is called
Answer
B. stiffness
57
The rate of change of bending moment is equal to
Answer
A. shear force
58
The point in a beam where the shear force changes sign is called the point of
Answer
A. maximum BM
59
For a simply supported beam ,carrying a uniformly distributed load ,the shape of the bending moment diagram will be,
Answer
B. parabolic
60
A cantilever beam of length L,cross-section A is subjected to a total uniformly distributed Load of W and a concentrated load W1 at a distance L1 from free end will have maximum moment of
Answer
D. (WL/2)+ W1 (L-L1 )
61
Out of the following mild steel section ,the most economical section is
Answer
A. I section
62
The shear stress on the principal plane is
Answer
C. zero
63
If the number of members provided is more than the requirement,then the frame will be classified as
Answer
B. redundant frame
64
The most suitable reason to adopt hollow circular section in place of solid circular shaft Is
Answer
B. more strength for same weight per unit length
65
The back sight reading on a BM(200m) was 2.650m.If the inverted staff reading to the bottom of a cantilever porch slab is 0.350m,the RL of the bottom of the slab is
Answer
B. 203.000
66) A survey in which horizontal and vertical locations are fixed by linear and angular measurements is known as
A) geodetic survey
B) cadastral survey
C) city survey
D) Topographical survey
Answer: D) Topographical survey
67
The survey in which the curvature of earth is ignored is called
Answer
A. Plane survey
68
As per Indian Standard ,the length of one link in 30m chain should be
Answer
A. 0.20 m
69
The error in measured length due to sag of chain or tape is known as
Answer
A. positive error
70
The base line is measured with
Answer
D. Chain
71
If the fore bearing of a line AB is observed to be 12°24 ,the back bearing of line AB should be
Answer
D. 192°24'
72
At magnetic poles,the dip of magnetic needle is
Answer
C. 90 degree
73) In leveling the error due to refraction is
A) additive
B) subtractive
C) compensating
D) progressive
Answer: C) compensating
74
Closed contours with higher values inside represents
Answer
B. Hill
75
When the bubble of the level tube of a level is central
Answer
A. line of sight is horizontal
76
The process of turning the telescope about the vertical axis in a horizontal plane is known as
Answer
D. swinging
77
The hinged end of a propped cantilever of span L settles by an amount , then the rotation of the hinged end will be
Answer
C. 3δ/2L
78
Two beams carrying identical loads, simply supported, are having same depth but beam A has double the width as compared that of beam B. The ratio of the strength of beam A to that of beam B is
Answer
C. 2
79
Defection can be controlled by using the appropriate
Answer
C. span/depth ratio
80
In a load-balanced prestressed concrete beam under self load ,the cross-section is subjected to
Answer
D. axial and shear stress
81
In a cantilever retaining wall of height h the horizontal pressure of earth will act at a distance of
Answer
D. h/3 from base
82
The minimum size of reinforcement bars in RCC column is
Answer
D. 12 mm
83
In a cantilever beam tensile reinforcement is provided
Answer
A. on the top of the beam
84
In a doubly reinforced rectangular beam, the allowable stress in compression steel is
Answer
C. less than the permissible stress in tension in steel
85
The section in which concrete is not fully stressed to its permissible value when stress in steel reaches its maximum value, is called
Answer
A. under reinforced section
86
A hydrograph is a plot of
Answer
B. Stream flow against time
87
The instrument used for measuring wind speed is
Answer
A. Anemometer
88
The method of moment distribution in structural analysis can be treated as
Answer
B. Displacement method
89
Which one of the following tests is performed in the laboratory to determine the extent weathering of aggregates for road work
Answer
A. soundness test
90
Which one of the following method is used in the design of rigid pavements
Answer
C. westergaards method
91
The Plasticity index of the granular sub base material should be
Answer
A. less than 6
92
For removal of temporary hardness in water
Answer
B. Water is boiled
93
Zeolite is
Answer
C. Hydrated alumina-silicate
94
Coagulants are used when turbidity of water is more than
Answer
A. 50 ppm
95
The Contact pressure distribution under a rigid footing on a cohesionless soil Would be
Answer
C. Zero at edges and maximum at centre
96
The minimum grade of concrete used for RCC work shall be
Answer
C. M20
97
The stripping time for form work props of beam having span more than 6m is
Answer
D. 21 days
98
In water bound macadam roads,binding material to hold stones is
Answer
B. red earth
99
Plinth area of a building is
Answer
C. Built up covered area measured at plinth level
100
The maximum horizontal distance between reinforcement in RCC slab in tension as per IS 456 is
Answer
A. Three times the effective depth or 300 mm whichever is less
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