Assistant Engineer -Civil- Kerala State Road Transport Corporation Question - Paper 120
5/06/2017
The terminal velocity of a small sphere settling in a viscous fluid varies as the
inverse of fluid viscosity
Inverse square of diameter
Inverse of diameter
first power of its diameter
A cement bag contains 0.035 cubic meter of cement by volume. How many bags will one tonne of cement comprises
20
16
17
18
Efflorescence of bricks is due to
Soluble salts present in clay for making bricks
High Porosity of bricks
High Silt Content in the soil used
Excessive burning of bricks
Which of the following constituent in earth gives plasticity to mould bricks in suitable shape
Alumina
Silica
Lime
Magnesia
The compound which contributes the highest share of heat of hydration in cement is
Tricalcium aluminate
Tricalcium Silicate
Gypsum
Combined lime
Putty is made up of
Powdered chalk and raw linseed oil
White lead and turpentine
Red lead and linseed oil
Zinc oxide and boiled linseed oil
In making Concrete ,maximum density is achieved by,
Controlling the particle size distribution of the ingredient
Using sufficient cement to fill all the voids
Controlling the particle size of the ingredient
Reducing the quantity of mixing water
which one of the following is not a vehicle in paints
Turpentine oil
Nut oil
Poppy oil
Tung oil
In high tensile steel carbon should be less than
0.15 %
0.10%
0.70 %
1.5%
The head room for a staircase should not be less than
2.10m
3.50m
3m
2m
The ratio of cement mortar preferred in load bearing walls in brick masonry is
1:6
1:2
1:8
1:12
A curtain wall carries
Self weight
wind load
roof load
no load
In ordinary residential and public buildings ,the DPC is provided at
Plinth level
Ground level
roof level
lintel level
Laterite is a
argillaceous rock
silicious rock
calcarious rock
magma
Marble is
metamorphic rock
Igneous rock
stratified rock
sedimentary rock
In any case the bearing of lintel should not be less than
150 mm
100 mm
200 mm
300 mm
The resultant of two equal forces(F) acting in opposite directions will be
zero
2 F
√2 F
0.707 F
The set of forces ,whose resultant is zero, are known as
equilibrium forces
collinear forces
coplanar forces
concurrent forces
The centre of gravity of a plane lamina is not at its geometrical centre if it is a
right angled triangle
Circle
square
rectangle
A system of coplanar forces is in equilibrium when
both force and funicular polygon closes
force polygon closes
funicular polygon closes
all the forces are coplanar concurrent
The diagram showing the point of application and line of action of forces in their plane is called
space diagram
Vector diagram
force diagram
funicular diagram
The specification of earth work in foundation trenches,drains etc. Lift ordinarly specified is
1.50 m
0m
5 m
3m
In analysis of rates contractors profit is taken at the rate of
10%
1%
5%
20%
One cubic metre of cement concrete (1:2:4) is to be mixed by volume .Number of cement bags required approximately will be
6
8
3
4
The thickness of plastering to masonry wall is usually
12mm
6 mm
30mm
22mm
In a detailed estimate the provision for contingencies is,usually
3% to 5%
1%
10%
12% to 50%
Original cost of property minus depreciation is
book value
salvage value
capital value
obsolence value
while submitting a tender the contractor is required to deposit some amount with the department, as guarantee of the tender known as
earnest money
bank guarantee
caution money
security deposit
For a comfortable ascent of stairway the number of steps in a flight should be restricted to a maximum of
12
10
16
20
Construction of temporary structure to support an unsafe structure is known as
Shoring
underpinning
scaffolding
Propping
Which of the following is not an excavating equipment
Scrapper
Power shovel
Drag line
Hoe
An Ideal flow of any fluid must fulfil the
Continuity Equation
Neweton’s Law of Viscosity
Neweton’s Law of Motion
Boundary layer Theory
A cubical tank is filled with water. If side of tank is 1m ,pressure on the base of the tank will be
1000 kg
10000 kg
5000 kg
4000 kg
The buoyancy depends upon the
weight of the liquid displaced
The pressure with which the liquid is displaced
viscosity of the liquid
compressibility of the liquid
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
3.2 cum
2.6 cum
2 cum
6 cum
The flow in a pipe or channel is said to be uniform when
The liquid particles at all sections have the same velocities
The liquid particles at different sections have different velocities
the quantity of liquid flowing per second is constant
each liquid particles has a definite path
Flow in a pipe is laminar if the Reynold’s number is
less than 2000
equal to 10 000
Between 4000 and 6000
between 2000 and 4000
Two pipe systems in series are said to be equivalent when
the discharge under the same head is same in both the systems
the average diameter in both systems is same
the average friction factor in both the system is same
the total length of the pipes is the same in both the systems
In open channel water flows under
force of gravity
atmospheric pressure
hydrostatic pressure
mechanical pressure
weir may be used to measure
discharge in a river or channel
velocity of flow
pressure
kinetic energy
The direction of flow of liquid in a propeller pump impeller is in
axial direction
outward radial direction
inward radial direction
the direction tangential to the impeller
The ratio of volume of voids to the total volume of the given soil mass, is known as
porosity
void ratio
specific gravity
water content
Dry density of soil is
ratio of the weight of soil solids to the total volume
always greater than the saturated density
ratio of the weight of soil solids to the volume of solids
determined by stregth test
The effective size of a soil is
D10
D30
D20
D40
A soil having uniformity coefficient more than 10 is called
well graded soil
uniform
fine
coarse
The property of a soil which permits flow of water through its interconnected voids is called
permeability
seepability
porosity
void ratio
The functional equation for specific gravity G ,water content w,void ratio e and degree of saturation Sr is
Sr= wG/e
w= Sr G/e
e= Sr w/G
G=Sr w/e
The law states that in laminar flow in a saturated soil, the velocity is directly proportional to the hydraulic gradient is called
Darcy’s law
Reynold’s law
Bligh’s law
Lacy’s law
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
consolidation
Compaction
settlement
depression
The minimum size of plate in plate load test is
300 mm
100 mm
450 mm
200 mm
Bearing capacity should be calculated from the criteria of
both settlement and shear
shear only
settlement only
cohesion only
Floating foundation is a type of
well foundation
pile foundation
pier foundation
Raft foundation
A shallow foundation is a foundation that
has a depth of embedment less than its width
has low bearing capacity
is resting on the ground surface
causes less settlement
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
less than square footing
more than square footing
same as square footing
not comparable
The energy stored in a material within elastic limit when it is under strain is called
resilience
impact
shock resistance
elasticity
The property of a material enabling it to resist deformation under stress is called
stiffness
toughness
strength
brittleness
The rate of change of bending moment is equal to
shear force
deflection
slope
axial thrust
The point in a beam where the shear force changes sign is called the point of
maximum BM
zero shear
zero curvature
maximum curvature
For a simply supported beam ,carrying a uniformly distributed load ,the shape of the bending moment diagram will be,
parabolic
triangular
circular
cubical
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
(WL/2)+ W1 (L-L1 )
(WL/2)+ W1 L1
(WL2/2)+ W1 L1
[W(L-L1)/2]+ W1 L1
Out of the following mild steel section ,the most economical section is
I section
circular section
rectangular section
channel section
The shear stress on the principal plane is
zero
maximum
minimum
intermediate
If the number of members provided is more than the requirement,then the frame will be classified as
redundant frame
perfect frame
deficient frame
Portal frame
The most suitable reason to adopt hollow circular section in place of solid circular shaft is
more strength for same weight per unit length
weight per unit length is less
easy to manufacture
easy to transport
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
203.000
202.300
2.3000
3.000
A survey in which horizontzl and vertical locations are fixed by linear and angular measurements is known as
Topographical survey
geodetic survey
cadastral survey
city survey
The survey in which the curvature of earth is ignored is called
Plane survey
geodetic survey
geological survey
aerial survey
As per Indian Standard ,the length of one link in 30m chain should be
0.20m
0.30m
0.40m
0.15m
The error in measured length due to sag of chain or tape is known as
positive error
negative error
compensating error
instrumental error
The base line is measured with
Chain
metallic tape
steel tape
Invar tape
If the fore bearing of a line AB is observed to be 12°24’ ,the back bearing of line AB should be
192°24’
77°36’
97°36’
167°36’
At magnetic poles,the dip of magnetic needle is
90 degree
0 degree
45 degree
120 degree
In levelling the error due to refraction is
compensating
additive
subtractive
progressive
Closed contours with higher values inside represents
Hill
depression
Plane surface
pond
When the bubble of the level tube of a level is central
line of sight is horizontal
line of collimation is horizontal
axis of the telescope is horizontal
Geometrical axis of the telescope is horizontal
The process of turning the telescope about the vertical axis in a horizontal plane is known as
swinging
Reversing
transiting
plunging
The hinged end of a propped cantilever of span L settles by an amount δ, then the rotation of the hinged end will be
3δ/2L
δ/L
2δ/L
4 δ/3L
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
2
1/2
1/4
4
Defection can be controlled by using the appropriate
span/depth ratio
aspect ratio
modular ratio
water cement ratio
In a load-balanced prestressed concrete beam under self load, the cross-section is subjected to
axial and shear stress
axial stress
bending stress
axial and bending stress
In a cantilever retaining wall of height ‘h’ the horizontal pressure of earth will act at a distance of
h/3 from base
h/2 from top
h/4 from base
h/3 from top
The minimum size of reinforcement bars in RCC column is
12 mm
6 mm
8 mm
10 mm
In a cantilever beam tensile reinforcement is provided
on the top of the beam
on the bottom of the beam
in the middle of the beam
on the top and bottom of the beam
In a doubly reinforced rectangular beam, the allowable stress in compression steel is
less than the permissible stress in tension in steel
equal to the permissible stress in tension in steel
more than the permissible stress in tension in steel
not related to the permissible concrete compression stress
The section in which concrete is not fully stressed to its permissible value when stress in steel reaches its maximum value, is called
under reinforced section
over reinforced section
doubly reinforced beam
cantilever beam
A hydrograph is a plot of
Stream flow against time
Precipitation against time
surface run off against time
Recorded run off against time
The instrument used for measuring wind speed is
Anemometer
Rotameter
Odometer
Atmometer
The method of moment distribution in structural analysis can be treated as
Displacement method
Force method
Flexibility method
An exact method
Which one of the following tests is performed in the laboratory to determine the extent weathering of aggregates for road work
soundness test
crushing test
Impact test
Abrasion test
Which one of the following method is used in the design of rigid pavements
westergaards method
CBR method
Group Index method
Mcleod s method
The Plasticity index of the granular sub base material should be
les than 6
grater than 6
greater than 9
between 15 and 20
For removal of temporary hardness in water
Water is boiled
Water os filtered
Lime is added
Chlorination is done
Zeolite is
Hydrated alumina-silicate
A naturally occurring salt
Hydrated silica
Dehydrated calcium silicate
Coagulants are used when turbidity of water is more than
50ppm
60 ppm
70 ppm
80 ppm
The Contact pressure distribution under a rigid footing on a cohesionless soil would be
Zero at edges and maximum at centre
Uniform throughout
Zero at centre and maximum at edges
Maximum at edges and minimum at centre
The minimum grade of concrete used for RCC work shall be
M20
M10
M15
M30
The stripping time for form work props of beam having span more than 6m is
21 days
2 days
7 days
14 days
In water bound macadam roads, binding material to hold stones is
red earth
sand
cement
quarry dust
Plinth area of a building is
Built up covered area measured at plinth level
Built up covered area measured at lintel level
Built up covered area measured at sill level
carpet area
The maximum horizontal distance between reinforcement in RCC slab in tension as per IS 456 is
Three times the effective depth or 300 mm whichever is less
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