A tank of length, breadth and height in the ratio of 2:1:2 is full of water. The ratio of hydrostatic force at the bottom to that at any larger vertical surface is
A
1
B
2
C
3
D
4
Question 3Single Answer
Which of the following fluids exhibit a certain shear stress at zero shear strain rate followed by a straight line relationship between shear stress and shear strain rate?
A
Newtonian fluid
B
Ideal Bingham plastic fluids
C
Pseudo-plastic fluids
D
Dilatent fluids
Question 4Single Answer
What is the specific gravity of a marble stone, which weighs 400N in air, and 200N in water? (g=10m/s2)
A
8
B
6
C
4
D
2
Question 5Single Answer
What is the intensity of pressure in the following SI units, when specific gravity of mercury is 13.6 and the intensity of pressure is 400KPa ?
A
0.3 bar or 4.077m of water or 0.29 mm of Hg
B
4 bar or 5.077m of water or 0.399 mm of Hg
C
0.3 bar or 5.077m of water or 0.599 mm of Hg
D
4 bar or 4.077m of water or 0.299 mm of Hg
Question 6Single Answer
Consider the following statements:
1.If a small upward displacement is given to a floating body, it results in the reduction of the buoyant force acting on the body
2.A slight horizontal displacement does not change either the magnitude or the location of the buoyant force
Which of the above statements is/are correct?
A
Both 1 and 2
B
1 only
C
2 only
D
Neither 1 nor 2
Question 7Single Answer
State whether following flow field is physically possible?
A
Possible for steady, incompressible flow
B
Possible for unsteady, incompressible flow
C
Possible for steady, compressible flow
D
Not Possible
Question 8Single Answer
In a differential manometer, a head of 0.5 m of fluid A in limb 1 is found to balance a head of 0.3 m of fluid B in limb 2. The atmospheric pressure is 760 mm of mercury. The ratio of specific gravities of A to B is
A
0.25
B
0.26
C
2
D
4
Question 9Single Answer
A Reversed Carnot Engine removes 50 kW from a heat sink. The temperature of the heat sink is 250 K and the temperature of the heat reservoir is 300 K. The power required of the engine is
A
10 kW
B
20 kW
C
30 kW
D
50 kW
Question 10Single Answer
On which of the following just in time manufacturing philosophy emphasizes ?
A
man power
B
profit
C
inventory
D
manufacturing
Question 11Single Answer
In a stream line steady flow, two points A and B on a stream line are 1m apart and the flow velocity varies uniformly from 2m/s to 5m/s. What is the acceleration of fluid at B?
A
3 m/s2
B
6 m/s2
C
9 m/s2
D
15 m/s2
Question 12Single Answer
The stream function is given by Ψ = 3xy, then the velocity at the point (2,3) is
A
9
B
-6
C
117
D
10.8
Question 13Single Answer
The boundary layer thickness at a given distance from the leading edge of a flat plate is
A
More for lighter fluid
B
More for denser fluid
C
Less for denser fluid
D
Less for lighter fluid
Question 14Single Answer
In a laminar flow through a circular pipe, the discharge varies
A
Linearly with fluid density
B
Inversely with pressure drop
C
Directly as square of pipe radius
D
Inversely with fluid velocity
Question 15Single Answer
A fluid is flowing over a flat plate. At distance of 8 cm from the leading edge, the Reynolds number is found to be 25600. The thickness of the boundary layer at this point is
A
1.5mm
B
2.5mm
C
4.0mm
D
5.0mm
Question 16Single Answer
Air is flowing over a flat plate with a free stream velocity of 24 m/s, and its kinematic viscosity is 72 ×10-6m2/s. If at a particular point, the Reynolds number is 30000, its location from the leading edge is
A
0.05m
B
0.07m
C
0.08m
D
0.09m
Question 17Single Answer
In a refrigerator, the evaporator and condenser coil temperatures are –33°C and 27°C, respectively. Assuming that the maximum COP is realized, the required power input for a refrigerating effect of 4 kW is
A
8 kW
B
4 kW
C
2 kW
D
1 kW
Question 18Single Answer
In a hydraulic coupling
A
The magnitudes of input and output torques are equal
B
The magnitudes of input torque is greater than output torque
C
The magnitudes of input torque is less than output torque
D
The magnitudes of input torque is negligible as compared to output torque
Question 19Single Answer
Consider the following statements:
1.The wheel can be operated freely in air
2.Pressure at the exit of the nozzle is atmospheric
3.Pressure does not vary along the moving vanes
4.Change the direction of momentum imparts thrust over moving vanes Which of the following statements are applied to impulse turbine?
A
1,2 and 3 only
B
1,2 and 4 only
C
3 and 4 only
D
1,2, 3 and 4
Question 20Single Answer
A water jet 0.0015m2in area issues from a nozzle with 15 m/s velocity. It is made to impinge perpendicular on to a plate that moves away from the jet with a velocity of 5 m/s. The force on the plate due to this impact is
A
150 N
B
1470 N
C
340 N
D
900 N
Question 21Single Answer
Consider the following statements with regard to hydraulic turbines:
1.Kaplan turbines are most efficient at part load operations.
2.If n is the number of jets in a Pelton turbine, then the specific speed is proportional to n2.
3.The flow ratio of Francis turbines are in the range of 0.1 – 0.3.
Which of the above statements is/are correct?
A
1,2 and 3
B
1 and 2 only
C
1 and 3 only
D
2 and 3 only
Question 22Single Answer
Which of the following is a Vector quantity ?
A
Energy
B
Mass
C
Momentum
D
Angle
Question 23Single Answer
Bernoulli’s equation is applicable between any two points located in
A
Rotational flow of an incompressible fluid
B
Irrotational flow of compressible or incompressible fluid
C
Steady, rotational flow of an incompressible fluid
D
Steady, irrotational flow of an incompressible fluid
Question 24Single Answer
Water flows through a smooth circular pipe of diameter D and length L because of a pressure difference ΔP across the length. The volume flow rate is Q and the flow is turbulent with Reynolds number 105. If the pressure difference is increased to 4ΔP the volume flow rate will be
A
2Q
B
A little more than 2Q
C
A little less than 2Q
D
4Q
Question 25Single Answer
Heat is lost from a 100 mm diameter steam pipe placed horizontally in ambient air at 30°C. If the Nusselt number is 25 and the thermal conductivity of the air is 0.03 W/m K, then the heat transfer coefficient will be
A
7.5 W/m2K
B
15 W/m2K
C
25 W/m2K
D
35 W/m2K
Question 26Single Answer
For laminar flow through a round pipe, the shear stress
A
Remains constant over the cross-section
B
Varies linearly with the radial distance
C
Must be zero at all point
D
Varies parabolically with radial distance
Question 27Single Answer
Percentage clongation during tensile test is indicative of
A
Creep
B
Malleability
C
Ductility
D
Elasticity in the metal
Question 28Single Answer
Which of the above statements is not correct in the context of laminar flow through a pipeline?
A
Shear stress is zero at the center and varies linearly with pipe radius
B
Head loss is proportional to square of the average flow velocity
C
The friction factor varies inversely with flow Reynolds number
D
No dispersion of die injected into the flow stream
Question 29Single Answer
Laminar flow between closely spaced parallel plates is governed by the consideration of which one of the following pair of forces?
A
Pressure and inertial forces
B
Gravity and inertial forces
C
Viscous and inertial forces
D
Pressure and inertial forces
Question 30Single Answer
Formation and collapse of vapour bubbles are believed to be the root cause for cavitation in hydraulic turbines. Most favorable condition for the formation of bubbles is set in the turbine at
A
Penstock/nozzl
B
Guide vanes/Inlet of the runner
C
Vanes receiving impact of jet
D
Outlet of the runner/Entrance of the draft tube
Question 31Single Answer
For fully developed laminar flow through a circular pipe with Reynolds number Rethe friction factor is
A
Inversely proportional to Re
B
Proportional to Re
C
Proportional to square of Re
D
Independent of Re
Question 32Single Answer
The ratio of power outlet of the pump to the power input to the pump is known as
A
Mechanical efficiency
B
Static efficiency
C
Overall efficiency
D
Manometric efficiency
Question 33Single Answer
A pump is defined as a device which converts
A
Hydraulic energy into Mechanical energy
B
Mechanical energy into Hydraulic energy
C
Kinetic energy into Mechanical energy
D
None of the above
Question 34Single Answer
The specific speed of a pump is defined as the speed of the unit of such a size that is
A
Delivers the unit discharge at unit head
B
Requires unit power to develop unit head
C
Delivers the unit discharge at unit power
D
Produces unit power with unit head available
Question 35Single Answer
Negative slip occurs in reciprocating pumps, when delivery pipe is
A
Long and suction pipe is short and pump is running atlow speed
B
Long and suction pipe is short and pump is running at high speed
C
Short and suction pipe is long and pump is running at low speed
D
Short and suction pipe is long and pump is running at high speed
Question 36Single Answer
The pressure inside a soap bubble of 50 mm diameter is 25 N/m2 above the atmospheric pressure. The surface tension in soap film would be
A
0.156 N/m
B
0.313 N/m
C
0.624 N/m
D
0.078 N/m
Question 37Single Answer
A Newtonian fluid is one which
A
Is viscous but incompressible
B
Has a linear relationship between the shear stress and the rate of angular deflection
C
Exhibits an increase in viscosity with increasing rate of deformation
D
Exhibits a decrease in viscosity with increasing rate of deformation
Question 38Single Answer
Unlike the viscosity of fluids, the viscosity of gases increases with increasing temperature. This is due to
A
Increased cohesive force between the molecule
B
Increased momentum transfer in the molecules
C
Decreased momentum transfer in the molecules
D
Increase in both cohesive force and momentum transfer
Question 39Single Answer
Manometer is a device used for measuring
A
Velocity at a point in a fluid
B
Pressure at a point in a fluid
C
Discharge of a fluid
D
None of the above
Question 40Single Answer
When a dolphin glides through air, it experiences an external pressure of 0.75 m of mercury. The absolute pressure on dolphin when it is 5m below the free surface of the water is
A
0.10 N/m2
B
0.5 N/m2
C
1.0 N/m2
D
0.15 N/m2
Question 41Single Answer
Which of the above statements is correct?
A
For a floating body, the stable equilibrium condition exists when position of metacenter remains higher than the center of gravity of the body
B
For a floating body, the stable equilibrium condition exists when position of metacenter remains lower than the center of gravity of the body
C
For a floating body, the neutral equilibrium condition exists when position of metacenter remains higher than the center of gravity of the body
D
For a floating body, the unstable equilibrium condition exists when position of metacenter remains higher than the center of gravity of the body
Question 42Single Answer
A wall of 0.6m thickness has normal area of 1.5 m2 and is made up of material of thermal conductivity 0.4 W/mK. If the temperature on the two sides of the wall are 800°C and 1000°C, the thermal resistance of the wall is
A
1.8 K/W
B
1.8 W/K
C
1 K/W
D
1 W/K
Question 43Single Answer
A flownet is a graphical representation of streamlines and euqipotnetial lines such as these lines
A
Intersect each other at various different angles forming irregular shaped nets
B
Intersect each other orthogonally forming curvilinearsquares
C
Indicate the direction but not magnitude of vector
D
Indicate the direction and magnitude of vector
Question 44Single Answer
Which of the above statements is correct for the velocity of potential?
A
Existence of velocity potential is an indication of irrotational nature of the flow
B
The velocity potential automatically satisfies the continuity equation
C
Velocity potential can be defined only for 2-dimensional flow
D
All of the above
Question 45Single Answer
Angle of diverging portion of the venturimeter is limited to 7°, because:
1.Flow decelerates in the diverging portion and pressure increases in the downstream direction. Hence, the fluid experience an adverse pressure gradient, if the divergence angle is large.
2 .Flow separation takes place due to adverse pressure gradient when divergence angle is large.
3 .If the divergence angle is large, a negative pressure is created at the throat which obstructs the flow of fluid.
Which of the above reasons are correct?
A
1, 2 and 3
B
1 and 2 only
C
1 and 3 only
D
2 and 3 only
Question 46Single Answer
A gas is flowing through an insulated nozzle. If the inlet velocity of gas is negligible and there is an enthalpy drop of 45kJ/kg, the velocity of gas leaving the nozzle is
A
100m/s
B
200m/s
C
300m/s
D
350m/s
Question 47Single Answer
Which of the above statements are correct for turbo-prop powered aircrafts?
1 .The propulsion efficiency of turbo-prop is higher than that of turbo-jet and rockets for low speeds up to about 800km/hr.
2.For the same thrust the turbine in the turbo prop aircraft is smaller than in the turbo-jet aircraft.
3.For the turbo-prop the flight velocity cannot exceed the jet velocity.
A
1,2 and 3
B
1 and 2 only
C
2 and 3 only
D
1 and 3 only
Question 48Single Answer
If absolute jet exit velocity from a jet engine is 2800m/s and forward flight velocity is 1400m/s then propulsive efficiency is
A
33.33%
B
40%
C
66.66%
D
90%
Question 49Single Answer
An air-breathing aircraft is flying at an altitude where the air density is half the value at ground level. With reference to the ground level, the air fuel ratio at this altitude will be
A
1
2
B
1
C
2
D
4
Question 50Single Answer
Which of the above statements are correct for rockets?
1.Unlike the turbo-jet aircraft, in rockets the flight velocity can exceed the jet velocity.
2.In rockets gases having lower molecular weight increase the specific thrust.
3.In rockets the gases are expanded in the nozzle up to the atmospheric pressure.
A
1,2 and 3
B
1 and 2 only
C
2 and 3 only
D
1 and 3 only
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Civil & Mechanical Engineering
Question 51Single Answer
In a differential manometer a head of 0.6m of fluid A in limb 1 is found to balance a head of 0.3m of fluid B in limb 2. The ratio of specific gravities of A to B is
A
2
B
0.5
C
0.3
D
0.18
Question 52Single Answer
At x = 0, the function f (x) = |x| will be
A
minimum
B
maximum
C
point of inflection
D
neither minimum nor maximum
Question 53Single Answer
The center of pressure of a plane submerged surface
A
Is a point on the submerged area at which the resultant hydrostatic force is supposed to act
B
Should always coincide within the center of submerged area
C
Should be at the center of gravity of the plane surface
D
Is always below the centroid of area
Question 54Single Answer
A furnace is provided with an insulating refractory lining. The overall thermal conductivity of the material is 0.03 W/mK. The thickness of the lining is 100 mm. The inner and outer temperatures are 250°C and 50°C, respectively. The heat loss to the surroundings will be
A
30 J/m2/s
B
60 J/m2/s
C
60 J/s
D
30 J/s
Question 55Single Answer
A piece of metal of specific gravity 7 floats in mercury of specific gravity 13.6, what fraction of its volume is under mercury?
A
0.5
B
0.4
C
0.515
D
Fully immersed
Question 56Single Answer
A right circular cylinder, open at the top, is filled with a liquid of specific gravity 1.2, and rotated about its vertical axis at such a speed that half of the liquid spills out. The pressure at the center of the bottom is
A
Zero
B
One-fourth its value when the cylinder was full
C
One-third its value when the cylinder was full
D
three-fourth its value when the cylinder was full
Question 57Single Answer
Consider the following statements about velocity potential:
1.Velocity potential is a vector function similar to stream function
2.It is a fully three dimensional function and not limited to two
coordinates
3.Velocity potential does not exist at stagnation points
4.Velocity potential exists only if the flow is irrotational
Which of the above statements are correct?
A
1, 2 and 3
B
1, 2 and 4
C
1, 3 and 4
D
2, 3 and 4
Question 58Single Answer
During a constant pressure expansion of a gas, 33.3% heat is converted into work while the temperature rises by 20 K. The specific heat of the gas at constant pressure as a proportion of work, W is
A
8%
B
10%
C
12%
D
15%
Question 59Single Answer
Principle mechanism of material removal in ECM?
A
Chemical corrosion
B
Ionic dissolution
C
Both (a) and (b)
D
Non of the above
Question 60Single Answer
The centre-line velocity in a pipe flow is 2m/s. What is the average flow velocity in the pipe if the Reynolds number of the flow is 800?
A
2 m/s
B
1.5 m/s
C
1 m/s
D
0.5 m/s
Question 61Single Answer
In flow through a pipe, the transition from laminar to turbulent flow does not depend on
A
Density of fluid
B
Length of pipe
C
Diameter of pipe
D
Velocity of the fluid
Question 62Single Answer
A 0.20m diameter pipe 20m long transports oil at a flow rate of0.01m3/s. Calculate power required to maintain flow if dynamic viscosity and density of oil is 0.08 Pas and 900 kg/m3 respectively
A
4.064 kW
B
3.074 kW
C
5.064 kW
D
4.074 kW
Question 63Single Answer
Pressure loss for laminar flow through pipeline is dependent
A
Inversely on flow of velocity
B
Directly on square of pipe radius
C
Directly on length of pipe
D
Inversely on viscosity of flowing medium
Question 64Single Answer
Fanno line is a flow in a constant area duct
A
With friction and heat transfer but in the absence of work
B
With friction and heat transfer accompanied by work
C
With friction but in the absence of heat transfer or work
D
Without friction but accompanied by heat transfer and work
Question 65Single Answer
In an adiabatic flow with friction through a constant area duct, the following phenomenon are predicted:
1.The flow downstream tends to be sonic irrespective of the Mach-number upstream
2.In the case of initially supersonic flow, any increase in duct length beyond choked flow would make the exit flow subsonic
3.In the case of initially subsonic flow, any increase in duct length will not change sonic flow at the exit
4.The optimum pipe length for sonic outlet in supersonic flow is considerably longer than that of subsonic flow for the same flow rate
Which of these are correct?
A
1,2,3 and 4
B
1,2 and 3 only
C
1,3 and 4 only
D
2,3 and 4 only
Question 66Single Answer
In a reciprocating pump, air vessels are used to
A
Smoothen the flow
B
Reduce suction head
C
Increase delivery head
D
Reduce acceleration head
Question 67Single Answer
Consider the following statements pertaining to centrifugal pumps:
1.The inlet to the impeller of a centrifugal pump is always axial, while the outlet may be radial or inclined.
2.The impeller may be shrouded on both sides with an eye at the centre and vanes curved backwards.
3.Impeller of double entry type has a balanced radial thrust.
4.Un-shrouded and part shrouded impeller are used only where high efficiency is unimportant.
Which of these statements are correct?
A
1,2,3 and 4
B
1,2 and 3 only
C
1,2 and 4 only
D
2,3 and 4 only
Question 68Single Answer
A centrifugal pump is fully primed, but on starting it fails to deliver fluid. Thr probable reasons are listed below:
1.Leaky foot valve or suction line
2.Suction head is very slow
3.Insufficient motor speed
4.Damaged or closed delivery valve
Which of these reasons are correct?
A
1,2,3 and 4
B
1,2 and 3 only
C
2,3 and 4 only
D
1,3 and 4 only
Question 69Single Answer
A centrifugal pump is to discharge 0.118 m3/s at speed of 1450 rpm against a head of 25m. The impeller diameter is 25cm, its width at outlet is 5cm and manometric efficiency is 75%. The vane angle at outer periphery of impeller is
A
56.77°C
B
59.77°C
C
61.77°C
D
48.77°C
Question 70Single Answer
A turbine is working under a head of 200m. The power developed by the turbine is 100kW and discharge through the turbine is 0.125 m3/s. In such case, the ratio of unit power to unit discharge for the turbine will be
A
4000
B
16000
C
160 × 103
D
None of the above
Question 71Single Answer
Two geometrical similar pumps are running at 1000 rpm speed (both). If one pump has impeller diameter of 0.3m and discharges 20Ips against 20m head, and the other pump gives half of this discharge rate; calculate head and diameter of second pump
A
12.5m and 0.12m
B
10.5m and 0.12m
C
10.5m and 0.23m
D
12.5m and 0.23m
Question 72Single Answer
In a steady laminar flow of a given discharge through a circular pipe of diameter D, the head loss is proportional to
A
D–1
B
D–2
C
D–3
D
D–4
Question 73Single Answer
Frictional losses in the nozzle
A
Reduces the enthalpy of the fluid
B
increases the enthalpy of the fluid
C
no effect on the enthalpy of the fluid
D
None of the above
Question 74Single Answer
In a nozzle designed for maximum discharge conditions, the flow velocity in the convergent section of the nozzle is
A
Subsonic
B
Sonic
C
Supersonic
D
Depends on initial pressure and condition of the steam
Question 75Single Answer
In the centrifugal compressor, the work input is equal to the sum of
A
Pressure head, relative head and dynamic head
B
dynamic head, centrifugal head and relative head
C
Pressure head, centrifugal head and dynamic head
D
Pressure head, centrifugal head and relative head
Question 76Single Answer
What will be the depth of penetration of the plunger in Vicat Apparatus (IS : 5513 - 1976) from the bottom of the Vicat Mould, when the cement paste is tested for standard consistency, according to IS 4031 – 1988 ?
A
11 to 15 mm
B
8 to 10 mm
C
15 to 17 mm
D
5 to 7 mm
Question 77Single Answer
Two sewer pipelines A and B (having the same diameter and made of the same material) are laid at a bed slope of 1 in 225 and 1 in 625, respectively. Determine the ratio of their carrying capacities (QA to QB) .
A
B
C
1
D
Question 78Single Answer
Select the correct statement with respect to an over - reinforced cement concrete section under the working stress method .
A
The compressive stress in steel reaches the allowable limit before the maximum tensile stress in concrete reaches the allowable limit
B
Tensile steel stress and maximum compressive stress in concrete simultaneously reach their allowable limits
C
The allowable limiting stress is reached in concrete before the steel stress reaches the limiting value
D
The tensile stress in steel reaches the allowable limit before the maximum compressive stress in concrete reaches the allowable limit
Question 79Single Answer
A cantilever beam of span L is built - in at the support. It is restrained against lateral deflection and torsion at the free end. The effective length of compression flange for the beam as per IS 800 : 2007 is
A
0.5 L
B
0.85 L
C
2 L
D
0.75 L
Question 80Single Answer
What is the principle of plane surveying ?
A
Working from part to whole
B
Working from point to area
C
Working from angle to volume
D
Working from whole to part
Question 81Single Answer
According is IS 5968 : 1987, the minimum radius of radius of curve to be provided in the alignment of unlined canals carrying a discharge of less than 30 cumecs up to 15 cumecs is :
A
100 m
B
1000 m
C
600 m
D
150 m
Question 82Single Answer
A Pelton wheel is to be designed for a pitch diameter of 1 m and jet diameter of 0.1 m. The number of buckets on the runner computed by Taygun’s formula is :
A
20
B
25
C
15
D
10
Question 83Single Answer
What is the effect of fly ash in concrete ?
A
Reduces the secondary hydration process
B
Increases the heat of hydration
C
Increases the amount of air entrainment
D
Reduces the heat of hydration
Question 84Single Answer
As per IS 456 : 2000, the minimum grade of concrete to be used for plain concrete and reinforced concrete, respectively, in concrete works exposed directly along the sea coast are :
A
M 20 and M 30
B
M 20 and M 25
C
M 22 and M 40
D
M 15 and M 25
Question 85Single Answer
Identify the property that changes as a function of the geometrical dimensions of a section in structural materials :
A
Mass density
B
Moment of inertia
C
Poission’s ratio
D
Modulus of elasticity
Question 86Single Answer
As per IRC (Indian Roads Congress) recommendation, what will be the designed stopping sight distance (in metres) at the vehicle speed of 80 km/h on a rural highway ?
A
120
B
140
C
70
D
60
Question 87Single Answer
No deduction is made in the quantity estimation for plastering work in cement mortar for openings having size up to :
A
0.5 m2
B
1.0 m2
C
3 m2
D
0.75 m2
Question 88Single Answer
What is the height of slump cone mould used for testing the workability of the concrete ?
A
20 cm
B
10 cm
C
30 cm
D
25 cm
Question 89Single Answer
Select the correct option with regard in the following statements (S1, S2) pertaining to pavements .
S1 : Present serviceability index is used for the functional evaluation of pavement surface condition
S2 : Rigid pavements are less affected by temperature variations than flexible pavements
A
Statements S1 is true and Statement S2 is false
B
Both statements S1 and S2 are false
C
Statements S1 is false and Statement S2 is true
D
Both statements S1 and S2 are true
Question 90Single Answer
If the quadrantal bearing of a line AB is S 31'35' E, then its whole circle bearing is equal in :
A
121o25'
B
148o25'
C
58o25'
D
211o25'
Question 91Single Answer
The overflowing sheet of water on a weir is called :
A
creek
B
crest
C
limp
D
nappe
Question 92Single Answer
According to IS 456 - 2000, what is the slump of a medium degree of workability of concrete if planed in heavily reinforced sections like slabs, beams, walls, columns ?
A
10 - 25 mm
B
25 - 50 mm
C
0 - 10 mm
D
50 - 100 mm
Question 93Single Answer
Which of the following is Kharif season in India ?
A
March / April to June / July
B
December / January to April / May
C
May / June to October / November
D
October / November to April / May
Question 94Single Answer
The estimated value of a built - up property at the end of its useful life without dismantled is called :
A
market value
B
book value
C
scrap value
D
salvage value
Question 95Single Answer
The amount of cement required for 100 m2 area, of damp proof course with 2.5 cm thinkness, in with proportion of 1: 2 : 4 (cement : sand : aggregate) will be :
A
2.5 m2
B
0.55 m2
C
1.10 m2
D
0.25 m2
Question 96Single Answer
Select the correct statement related to increasing the carbon content in steel from 0.2 to 0.9 percent .
A
Increasing the carbon content in steel decreases the yield stress and increases the ductility
B
Increasing the carbon content in steel increases the yield stress and reduces the ductility
C
Increasing the carbon content in steel decreases the yield stress and does not affect the ductility
D
Increasing the carbon content in steel does not have any effect on the yield stress or ductility
Question 97Single Answer
Which of the following laws states that pressure or intensity of pressure at a point is static fluid is equal in all directions ?
A
Newton's law
B
Pascal's law
C
Darcy's law
D
Hydrostatic law
Question 98Single Answer
The determination of plasticity index and the percentage by weight of clay mineral finer than 2 µ present in the soil were done for two soil samples A and B. The ratio of plasticity index to the percentage of clay size particle for the samples A and B are given in the table .
Soil sample Ratio of plasticity index to percentage of clay size particle
Sample A Less than 0.75
Sample B Greater than 1.25 The two soil sample A and B are classified as
A
Sample A : Inactive; Sample B : Active
B
Sample A : Active; Sample B : Normal
C
Sample A : Active; Sample B : Inactive
D
Sample A : Normal ; Sample B : Inactive
Question 99Single Answer
Which of the following compounds of cement is responsible for early strength ?
A
C4AF
B
C3S
C
C3A
D
C2A
Question 100Single Answer
According to SP : 27 - 1984, the thickness of slab or RC slab shall be measured to the nearest of :
A
0.0002 m
B
0.005 m
C
0.0001 m
D
0.01 m
Question 101Single Answer
Classify the following pollutants as primary pollutants (PP) and secondary pollutants (SP). Ozone, Carbon monoxide, Particulate matter, photochemical smog, Nitrogen oxides, Aerosol/mist, Hydrocarbons, Perory - Acetyl - Nitrate, Sulphur dioxide.
bulk unit weight of a soil when it is fully saturated
B
saturated bulk unit weight to total void
C
total void to saturated bulk unit weight
D
total void to saturated bulk unit weight
Question 103Single Answer
Identify the test to be conducted for the determination of the modulus of subgrade reaction in pavement design .
A
Plate bearing test
B
Triaxial test
C
CBR test
D
Direct shear test
Question 104Single Answer
In limit state design, the design bond stress for deformed bars (conforming to IS 1786) for M20 concrete mentioned in IS 456 : 2000 is (in N/mm2 units) :
A
1.2
B
1.8
C
1.68
D
1.92
Question 105Single Answer
Which of the following can be considered as a taking off point in road planning in India ?
A
Lucknow plan
B
Delhi plan
C
Bombay plan
D
Nagpur plan
Question 106Single Answer
The following two statements pertain to a simply supported under reinforced concrete beam. Select the correct option with regard is these statements .
1. The failure of the beam takes place due to the yielding of steel .
2. The moment of resistance of the beam is more than that of the balanced section of the beam .
A
Statement 1 is true but Statement 2 is false
B
Statement 1 is false but Statement 2 is true
C
Both statement 1 and 2 are true
D
Both statement 1 and 2 are false
Question 107Single Answer
A continuous beam ABC with span AB = BC = L is shown in the figure. Support A is fixed type, and supports B and C are roller type. The kinematic indeterminacy of the beam is :
A
2
B
3
C
5
D
4
Question 108Single Answer
The soils transported and deposited by a river or a stream care called :
A
aeolian soils
B
alluvial soils
C
lacustrine soils
D
marine soils
Question 109Single Answer
What is the mechanical extra widening required for a two-lane pavement of width 7 m on a horizontal curve of radius 250 m, if the longest wheel base of a vehicle expected on the road is 5 m with a design speed of 70 km/h ?
A
0.155 m
B
0.225 m
C
0.100 m
D
0.552 m
Question 110Single Answer
The following are some of the errors that area associated with a total station survey work. Vertical collimation error, Centering error, Horizontal collimation error, Eccentricity error Categorize the given errors as those due to temporary adjustments (T) and permanent adjustments (P).
A
T : Vertical collimation error, Horizontal collimation error
P : Centering error, Eccentricity error
B
T : Centering error, Horizontal collimation error, Eccentricity error
P : Vertical collimation error
C
T : Eccentricity error, Horizontal collimation error
P : Centering error, Vertical collimation error, Eccentricity error
D
T : Centering error
P : Vertical collimation error, Horizontal collimation error, Eccentricity error
Question 111Single Answer
According to IS 800 : 2007, identify the property which is considered as a mechanical property of structural steel, important in design .
A
Unit mass
B
Maximum percent elongation on a standard gauge length
C
Co - efficient of thermal expansion
D
Poisson ration
Question 112Single Answer
Which of the following methods is NOT used for measuring air content in fresh concrete ?
A
Blaine air permeability method
B
Gravimetric method
C
Pressure method
D
Volumetric method
Question 113Single Answer
Which of the following methods is NOT used for the calculation of depreciation of a structure ?
A
Straight line method
B
Quantity survey method
C
Geometric projection method
D
Declining balance method
Question 114Single Answer
The failure of an over reinforced concrete beam is due to :
A
compression failure
B
mid failure
C
shear failure
D
tension failure
Question 115Single Answer
In which type of estimate is 'Court yard' NOT considered ?
A
Unit rate estimate
B
Plinth area estimate
C
Lump sum estimate
D
Cub rate estimate
Question 116Single Answer
Match the items in List 1 (name of quantities) with those in List 2 (unit of quantities in the SI system). Use codes in List for matching .
List 1 List 2
M. Dynamic viscosity 1. N/m
N. Kinematic viscosity 2. N.m
O. Surface tension 3. N.s/m2
P. Energy 4. m2/s
A
M-3, N-4, O-2, P-1
B
M-3, N-4, O-1, P-2
C
M-4, N-3, O-1, P-2
D
M-2, N-4, O-1, P-3
Question 117Single Answer
A reinforced concrete beam is subjected to the following bending moments .
Moment due to dead load = 50 kNm
Moment due to live load = 50 kNm
Moment due to seismic load = 20 kNm
The design bending moment for limit state of collapse is :
A
120 kNm
B
180 kNm
C
144 kNm
D
150 kNm
Question 118Single Answer
In a workshop shade, trusses are spaced at 4 m centre to centre. The purlins are spaced at 1.4 m centre to centre along the slope of 300. The (Dead Load + Live load) is 3 kNm2 and the wind load in 5 kNm2. The vertical and the inclined point loads, respectively, will be :
A
14.54 kN and 28 kN
B
17.8 kN and 48 kN
C
20 kN and 24 kN
D
18 kN and 21 kN
Question 119Single Answer
What will be the percentage of passing aggregate for the grading zone 1 of sieve size 1.18 mm ?
A
100%
B
10% - 20%
C
7% - 25%
D
30% - 70%
Question 120Single Answer
The annual or periodical payment for repayment of the capital amount invested on a property for a specified period is known as :
A
depreciation
B
obsolescence
C
amortization
D
annuity
Question 121Single Answer
Among the following river training works, which are aligned either parallel or at an angle to the banks, identify the one having a difference in alignment when compared to others :
A
Flood walls
B
Guide banks
C
Groynes
D
Levees
Question 122Single Answer
The test commonly to determine the grade of bitumen in terms of its hardness is :
A
the penetration test
B
the ductility test
C
the softening point test
D
the flash and fire point test
Question 123Single Answer
A level section has formation width of 10 m, side slope of 1 : 2 (vertical : horizontal) and central height of 2 m. Determine the quantity of earthwork required for a 1 km length of formation (in m3) .
A
24,000
B
20,000
C
18,000
D
28,000
Question 124Single Answer
Which type of odour characteristic is NOT used for classifying odour of a given water sample as per IS 3025 (part-5) 1983 ?
A
Degree of sweetness
B
Degree of turbidity
C
Degree of pungency
D
Degree of smokiness
Question 125Single Answer
The liquid limit and plastic limit of clay materials is 45% and 25% respectively, what is the activity of clay materials if 20% by weight of particles of size less than 2 microns ?
A
0
B
2
C
3
D
1
Question 126Single Answer
Among the following corrections applied for tape measurement, identify the correction which is NOT always negative in sign :
A
Sag
B
Slope of taype
C
Pull
D
Wrong alignment
Question 127Single Answer
A village has a population of 200 with as average rate of water demand as 100 litre per capita per day. A rapid sand filter having an average filtration rate of 100 litre/hour/m2 is to be designed for water treatment. The area of rapid sand filter required is : (Take the ratio of maximum demand to average demand as 1.5.)
A
8.00 m2
B
14.50 m2
C
10.00 m2
D
12.50 m2
Question 128Single Answer
If the bearing of the side AB of a regular hexagon traverse ABCDFFA shown in the figure is 36o45', the bearing of the adjacent side BC of the traverse is :
A
216o15'
B
96o45'
C
83o15'
D
156o45'
Question 129Single Answer
Pigment volume concentration (PVC) of paint is defined as :
A
B
C
D
Question 130Single Answer
The Indian Roads Congress (IRC) was founded in the year :
A
1927
B
1934
C
1950
D
1982
Question 131Single Answer
In a leveling survey work, the first staff reading taken in a staff station after shifting the instrument and the last staff reading taken to a staff sation before the instrument in shifted are, respectively :
A
back sight and intermediate sight
B
intermediate sight and back sight
C
back sight and fore sight
D
fore sight and back sight
Question 132Single Answer
Which of the following Indian Standard Codes provides conservatively imposed loads for buildings and structures ?
A
IS 875 (part 4) – 1987
B
IS 875 (part 1) – 1987
C
IS 875 (part 3) – 1987
D
IS 875 (part 2) – 1987
Question 133Single Answer
Activity of soil is ratio of the plasticity index to :
A
percentage of compressive strength
B
percentage by weight of clay fraction
C
liquidity index
D
percentage of sensitivity
Question 134Single Answer
Kor watering in irrigation is defined as :
A
the first watering which is given to seeds sown in the plot for germination
B
the first watering which is given to a crop when the crop is a few centimeters high
C
the first watering which is given to a crop before transplanting
D
the first watering which is given to a plot when the crop is transplanted
Question 135Single Answer
What is a SI unit for dynamic viscosity ?
A
Pascal second
B
Pascal
C
Stoke
D
Newton
Question 136Single Answer
Arrange the following building materials in the increasing order of density of materials .
Granite, Steel, River sand, Water
A
Water, River sand, Steel, Granite
B
River sand, Granite, Water, Steel
C
River sand, Water, Granite, Steel
D
Water, River sand, Granite, Steel
Question 137Single Answer
The bearing of a line AB is 150o15' and the angle ABC between line AB and BC is 110o30' as shown in the given figure . What is the bearing of line BC ?
A
440o45'
B
80o45'
C
79o15'
D
330o15'
Question 138Single Answer
Select the correct statement with respect to a slow sand filter :
A
The filtering medium has effective size 0.45 to 0.7 mm, uniformity coefficient 1.3 to 1.7, multiple graded layers of sand with bacteria and odour removal
B
The rate of filtration is in the range of 100 - 150 m3/m2/day
C
The effective size of sand particles shall be 0.15 to 0.3 mm, and their uniformity coefficient shall be preferably below 3
D
Backwashing daily or on alternate days is necessary for cleaning
Question 139Single Answer
What will be the carrying capacity of a horizontal rectangular channel 4 m wide, conveying a discharge of 1 cumecs per meter width of channel ?
A
4.000 m3/s
B
2.085 m3/s
C
1.000 m3/s
D
8.000 m3/s
Question 140Single Answer
Select the correct option with regard to the following statements (S1, S2) pertaining to consolidation in soils :
S1: A soil is termed as normally consolidated, if the present effective orver burden pressure is less than maximum to which the soil was ever been subjected to in the past .
S2: The large the value of co - efficient of consolidation, the shorter it takes for full consolidation to occur .
A
S1 is true and S2 is false
B
Both S1 and S2 are false
C
Both S1 and S2 are true
D
S1 is false and S2 is true
Question 141Single Answer
A real fluid in which the shear stress is directly proportional to the velocity gradient is known as :
A
non - newtonian fluid
B
newtonian fluid
C
ideal fluid
D
plastic fluid
Question 142Single Answer
An airport runway fill needs 8,50,000 m3 of soil compacted to void ratio of 0.7. The required soil is to be taken from a borrow pit having an in situ void ratio of 0.8. If the transportation cost is Rs.10 per m3, estimated cost for the filling work is (in Rs.) :
A
82,00,000
B
90,00,000
C
50,00,000
D
85,00,000
Question 143Single Answer
If p is internal pressure, d is diameter and t is thickness of wall for a thin cylindrical shell, then the value of hoop stress will be :
A
pt/4d
B
pd/4t
C
pd/2t
D
td/4p
Question 144Single Answer
As per IS 800 : 2007, in the design of beams/plate girders, when the web of a member acting alone is inadequate, different types of stiffeners are provided. Match the type of stiffeners provided in List 1 with the requirement to be satisfied by them in List 2 .
(Use the Code in the lists for matching)
List 1 List 2
B. Intermediate transverse wed stiffener 1. Provide local reinforcement to wed under shear and bearing
C. Load carrying stiffiener 2. Improve the buckling strength of a slender Web due to shear
D. Bearing stiffener 3. Prevent local buckling of web due to concentrated loading
E. Diagonal stiffener 4. Prevent local crushing of web due to concentrated loading
A
B - 3, C - 2, D - 4, E - 1
B
B - 4, C - 3, D - 1, E - 2
C
B - 2, C - 3, D - 4, E - 1
D
B - 4, C - 3, D - 2, E - 1
Question 145Single Answer
A canal was designed for a full supply discharge of 60 cumee. The average supply discharge in the canal is 40 cumee. The capacity factor of the cannal is :
A
6.0
B
4.00
C
0.67
D
0.45
Question 146Single Answer
Sewers must be checked for minimum velocities at their minimum hourly flows which is equal to :
A
1/4 average daily flows
B
1/2 average daily flows
C
average daily flows
D
1/3 average daily flows
Question 147Single Answer
What is the permissible limit of organic mater present in water for mixing concrete as per IS 456 - 2000 ?
A
200 mg/ l
B
3000 mg/ l
C
2000 mg/ l
D
400 mg/ l
Question 148Single Answer
A horizontal pipeline AB of diameter d cpmveus water, flowing from A to B. The U - tube manometer with mercury as manometric liquid can be used for the measurement of :
A
difference in the total energy between two points A and B
B
difference in the pressure head between two points A and B
C
difference in the velocity between the points A and B
D
difference in the kinetic head at the two points A and
Question 149Single Answer
A cantilever of beam span l is fixed at one end, the other end resting freely on the middle of a simply supported cross-beam of the same span and section. If the cantilever beam is now loaded with a uniform load of w per unit length, find the reaction at the free end offered by the cross beam.
A
B
C
D
Question 150Single Answer
Select the INCORRECT obstacle in chaining in a chain survey:
