1888 + Mcqs in Upsc Civil Service Exam Questions Page 13 McqOptions

601.	What is the value of camber rate that should be provided in case of WBM pavement surface in an area of heavy rainfall ?
A.	1 in 30
B.	1 in 48
C.	1 in 60
D.	1 in 72
Answer» B. 1 in 48

Discussion

602.	If P is the direct load, L is the length of the member, A is the uniform area of cross-section and E is the Young's modulus; then strain energy due to direct stress caused by a gradually applied load is
A.	[A].
B.	[B].
C.	[C].
D.	[D].
Answer» B. [B].

Discussion

603.	A simply supported continuous beam with two equal spans carries uniformly distributed load w on entire length of the beam. If each span has a length L, the bending moment at the central support is
A.	[A].
B.	[B].
C.	[C].
D.	[D].
Answer» C. [C].

Discussion

604.	A solid sphere will be in stable equilibrium if its centre of gravity lies
A.	vertically above its geometric centre
B.	vertically below its geometric centre
C.	on the horizontal line through its centre
D.	at the centre
Answer» C. on the horizontal line through its centre

Discussion

605.	D'Alembert's principle
A.	is based on the law of conservation of energy
B.	is based on the law of conservation of angular momentum
C.	provides no special advantage over Newton's law
D.	enables a dynamic problem to be treated akin to a problem of statics
Answer» E.

Discussion

606.	The displacement of a particle undergoing rectilinear motion along the x-axis is given by x = 2t3- 21t2 + 60t + 6 (m)The acceleration of the particle when its velocity is zero, is
A.	36 m/s2
B.	± 18 m/s2
C.	9 m/s2
D.	- 9 m/s2
Answer» C. 9 m/s2

Discussion

607.	Surface tension of water when in contact with air is 0.0737 N/m. The difference of pressure between the inside and outside of a droplet of rain water 1 mm in diameter is nearly equal to
A.	0.15 kN/m2
B.	0.20 kN/m2
C.	0.25 kN/m2
D.	0.30 kN/m2
Answer» E.

Discussion

608.	A VOR radio transmitter which emits beam in a vertical plane and gives an indication to the pilot whether he is to the left or right of the correct alignment for approach to the runway is known as
A.	Outer marker
B.	Localiser antenna
C.	Glide slope antenna
D.	Marker beacon
Answer» E.

Discussion

609.	A cantilever is loaded as shown in the given figure. The bending moment along the length is
A.	uniform
B.	uniformly varying
C.	zero
D.	concentrated at the free end
Answer» B. uniformly varying

Discussion

610.	Total elongation of a prismatic bar of length L, weight W, cross-sectional area A and modulus of elasticity E, under its own weight, while hanging vertically, is
A.	[A].
B.	[B].
C.	[C].
D.	[D].
Answer» D. [D].

Discussion

611.	In the figure shows two blocks of equal weights designated as W1 and W2 connected together by a rod and resting on an inclined plane whose angle α can be varied. The coefficients of friction between the blocks and the surface of the plane are μ1 = 0.2 and μ2 = 0.3. The value of angle α at which the slipping will commence is given by
A.	tan α = 0.1
B.	tan α = 0.2
C.	tan α = 0.25
D.	tan α = 0.8
Answer» D. tan α = 0.8

Discussion

612.	If the flange angle is β, coefficient of friction between flange and rail is μ, the derailment coefficient according to Nadal's formula should not exceed
A.	[A].
B.	[B].
C.	[C].
D.	[D].
Answer» D. [D].

Discussion

613.	A retaining wall 8 m high with a smooth vertical back retains a clay back fill with C' = 15 kN/m2, φ = 15° and γ = 18 kN/ m3. (Given sin 15° ≅ 0.25). The pressure at the top will, nearly, be equal to
A.	35.2 kN/m2
B.	23.0 kN/m2
C.	27.6 kN/m2
D.	11.5 kN/m2
Answer» E.

Discussion

614.	The head over a 90° V-notch weir increases from 0.15 m to 0.3 m. The ratio of new discharge to the original discharge is, nearly equal to
A.	5.65
B.	1.42
C.	4
D.	2.62
Answer» B. 1.42

Discussion

615.	The momentum correction factor (β) is used to account for
A.	change in the direction of flow
B.	change in total energy
C.	change in mass rate of flow
D.	non-uniform distribution of vel-ocities
Answer» E.

Discussion

616.	Choose the correct statement about horizontal component of resultant hydrostatic pressure on a curved submerged surface :
A.	It is equal to the product of pressure at the centroid and the curved area
B.	It is equal to the weight of the liquid above the curved surface acting at 0.5 depth of the surface
C.	It is equal to the projected area of the surface on a vertical plane multiplied by the pressure at the centre of gravity of area
D.	It is equal to the weight of the liquid above the curved surface multiplied by the projected area on a vertical plane.
Answer» D. It is equal to the weight of the liquid above the curved surface multiplied by the projected area on a vertical plane.

Discussion

617.	Unit cost of any item of work can be found by using
A.	specifications
B.	value analysis
C.	economic analysis
D.	rate analysis
Answer» E.

Discussion

618.	The odour of drying paint or varnish is derived from which of the following chemical compounds?
A.	Organic gases
B.	Volatile organic compounds
C.	Ethylene
D.	Acetylene
Answer» D. Acetylene

Discussion

619.	Which one of the following is the angular distance between the observer's meridian and the vertical circle passing through a star measured along the celestial horizon ?
A.	Right ascension
B.	Azimuth
C.	Declination
D.	Hour angle
Answer» E.

Discussion

620.	The following readings were taken with a Dumpy level and a 4 m levelling staff on a continuously sloping ground at 30 m intervals : 0.680 m, 1.455 m, 1.855 m, 2.330 m, 2.885 m, 3.380 m, 1.055 m. The R.L. of the fourth point was calculated to be 79.100 m. The R.L. of the point that was read 0.680 m is
A.	80.750 m
B.	79.780 m
C.	78.420 m
D.	77.740 m
Answer» B. 79.780 m

Discussion

621.	A journey from work to home made by walking to the bus, travelling by bus to the station and completing the journey by train is regarded as
A.	4 trips
B.	3 trips
C.	2 trips
D.	1 trip
Answer» E.

Discussion

622.	In the phase diagrams given, the change due to initial state changing into final state is shown due to consolidation. Depth of soil layer undergoing consolidation is H ; e0 is initial void ratio; ef is final void ratio ; Δe is change in void ratio. Indicate which of the following expressions gives settlement of the layer :
A.	[A].
B.	[B].
C.	[C].
D.	[D].
Answer» E.

Discussion

623.	The correct sequence of plasticity of min-erals in soil in an increasing order is
A.	Silica, Kaolinite, Illite, Montmorillonite
B.	Kaolinite, Silica, Illite, Montmorillonite
C.	Silica, Kaolinite, Montmorillonite, Illite
D.	Kaolinite, Silica, Montmorillonite, Illite
Answer» B. Kaolinite, Silica, Illite, Montmorillonite

Discussion

624.	The description of solid waste collected is as follows :Night soil - 35 tRubbish - 40 tDebris - 25 tGarbage - 40 tThe organic solids in the above composition is
A.	35 t
B.	60 t
C.	100 t
D.	75 t
Answer» E.

Discussion

625.	Laboratory vane shear test can also be used to determine
A.	Shear parameters of silty sand
B.	Shear parameters of sandy clay
C.	Liquid limit of silty clay
D.	Plastic limit of clayey silt
Answer» E.

Discussion

626.	Acidic soils are reclaimed by
A.	leaching of the soil
B.	using limestone as a soil amendment
C.	using gypsum as a soil amendment
D.	provision of drainage
Answer» C. using gypsum as a soil amendment

Discussion

627.	Neglecting self weight, which of the following beams will have points of contraflexure ?
A.	A simply supported beam with uniformly distributed load over part of the structure
B.	An overhanging beam with loading only over supported span and not on overhangs
C.	Fixed beam subjected to concentrated load
D.	Cantilever beam subjected to uniformly varying load with zero load at free end
Answer» D. Cantilever beam subjected to uniformly varying load with zero load at free end

Discussion

628.	The ratio of the torsional moments of resistance of a solid circular shaft of diameter D, and a hollow circular shaft having external diameter D and internal diameter d is given by
A.	[A].
B.	[B].
C.	[C].
D.	[D].
Answer» B. [B].

Discussion

629.	A bar of square cross-section, having area of cross-section 'A' is subjected to a compressive force 'P' as shown in the figure. The intensity of the tangential stress on the oblique plane is given by
A.	P sin 2θ
B.	P cos 2θ
C.	[C].
D.	[D].
Answer» D. [D].

Discussion

630.	The shape factor for a solid circular section of diameter D is equal to
A.	[A].
B.	[B].
C.	[C].
D.	[D].
Answer» D. [D].

Discussion

631.	A continuous beam ABC of two equal spans AB and BC carries a load P at Z, the centre of BC. Then the magnitude of collapse load P is equal to
A.	[A].
B.	[B].
C.	[C].
D.	[D].
Answer» D. [D].

Discussion

632.	Figure given below shows a fixed beam of steel: At the point of collapse, the value of load W will be
A.	[A].
B.	[B].
C.	[C].
D.	[D].
Answer» D. [D].

Discussion

633.	The effective flange area in tension of a plate girder is equal to (where Af is the area of each flange and Aw, is the web area).
A.	Af
B.	[B].
C.	[C].
D.	[D].
Answer» D. [D].

Discussion

634.	The slenderness ratio of a compression member in the context of Rankine's formula is defined as
A.	[A].
B.	[B].
C.	[C].
D.	[D].
Answer» C. [C].

Discussion

635.	For the frame shown in the figure, the distribution factors for members BC and BA at joint B are
A.	0.4, 0.6
B.	0.5, 0.5
C.	0.6, 0.4
D.	0.7, 0.3
Answer» D. 0.7, 0.3

Discussion

636.	In the truss shown in the given figure which one of the following members has no force induced in it ?
A.	CD
B.	CE
C.	CF
D.	DF
Answer» D. DF

Discussion

637.	The declination of a star is 21° 15' N at a latitude of 43° 30' N. The zenith distance at the upper culmination is
A.	22° 15'
B.	21° 15'
C.	64° 45'
D.	43° 30'
Answer» B. 21° 15'

Discussion

638.	The ture bearing of a line is 34° 20' 40"and the magnetic declination at the place of observation is 2° 00' 20" W on the date of observation. The magnetic bearing of the line is
A.	36° 21' 00"
B.	34° 20' 20"
C.	32° 20' 20"
D.	32° 00' 20"
Answer» B. 34° 20' 20"

Discussion

639.	In a BG railway track, the specified ruling graident is 1 in 250. The horizontal curve of 3° on a gradient of 1 in 250 will have the permissible compensated gradient of
A.	1 in 257
B.	1 in 357
C.	1 in 457
D.	1 in 512
Answer» C. 1 in 457

Discussion

640.	Brake is applied on a vehicle which then skids a distance of 16 m before coming to stop. If the developed average coefficient of friction between the tyres and the pavement is 0.4, then the speed of the vehicle before skidding would have been nearly
A.	20 kmph
B.	30 kmph
C.	40 kmph
D.	50 kmph
Answer» D. 50 kmph

Discussion

641.	An ascending gradient of 1 in 100 meets a descending gradient of 1 in 50, The length of summit curve required to provide overtaking sight distance of 500 m will be
A.	938 m
B.	781m
C.	470 m
D.	170 m
Answer» C. 470 m

Discussion

642.	If a descending gradient of 1 in 25 meets an ascending gradient of 1 in 40, then the length of valley curve required for a headlight sight distance of 100 m will be
A.	30 m
B.	130 m
C.	310 m
D.	630 m
Answer» C. 310 m

Discussion

643.	As per I.S. 1904-1986 the permissible angular distortion with respect to steel sructures in isolated foundations resting on plastic clay is
A.	[A].
B.	[B].
C.	[C].
D.	[D].
Answer» D. [D].

Discussion

644.	A sand deposit has a porosity of 0.375 and a specific gravity of 2.6, the critical hydraulic gradient for the sand deposit is
A.	2.975
B.	2.225
C.	1
D.	0.75
Answer» D. 0.75

Discussion

645.	In a linear reservoir, the
A.	volume varies linearly with elevation
B.	outflow rate varies linearly with storage
C.	storage varies linearly with time
D.	storage varies linearly with inflow rate
Answer» C. storage varies linearly with time

Discussion

646.	For stream function ψ = 3x2 - y3, the magnitude of velocity at the point (2, 1) is
A.	12.37
B.	12
C.	13
D.	13.5
Answer» B. 12

Discussion

647.	An equilateral triangular plate is immersed in water as shown in the above figure. The centre of pressure below the water surface is at a depth of
A.	[A].
B.	[B].
C.	[C].
D.	[D].
Answer» E.

Discussion

648.	For fish habitat in a river, the minimum dissolved oxygen required is
A.	2 mg/l
B.	4 mg/l
C.	8 mg/l
D.	10 mgl
Answer» C. 8 mg/l

Discussion

649.	The correct sequence of the sludge digestion steps is
A.	Acid formation, hydrolysis, methane formation
B.	Methane formation, acid formation, hydrolysis
C.	Hydrolysis, methane formation, acid formation
D.	Hydrolysis, acid formation, methane formation
Answer» E.

Discussion

650.	Consider the following statements :Ventilation of sewer lines is necessary to1. avoid building up to sewer gases.2. ensure atmospheric pressure in the waste water surface.3. ensure the safety of sewer maintenance people.4. provide oxidation facility to sewage.Which of these statements are correct ?
A.	1, 2 and 4
B.	1, 3 and 4
C.	2, 3 and 4
D.	1, 2 and 3
Answer» E.

Discussion

Explore topic-wise MCQs in Civil Engineering.

What is the value of camber rate that should be provided in case of WBM pavement surface in an area of heavy rainfall ?

If P is the direct load, L is the length of the member, A is the uniform area of cross-section and E is the Young's modulus; then strain energy due to direct stress caused by a gradually applied load is

A simply supported continuous beam with two equal spans carries uniformly distributed load w on entire length of the beam. If each span has a length L, the bending moment at the central support is

A solid sphere will be in stable equilibrium if its centre of gravity lies

D'Alembert's principle

The displacement of a particle undergoing rectilinear motion along the x-axis is given by x = 2t3- 21t2 + 60t + 6 (m)The acceleration of the particle when its velocity is zero, is

Surface tension of water when in contact with air is 0.0737 N/m. The difference of pressure between the inside and outside of a droplet of rain water 1 mm in diameter is nearly equal to

A VOR radio transmitter which emits beam in a vertical plane and gives an indication to the pilot whether he is to the left or right of the correct alignment for approach to the runway is known as

A cantilever is loaded as shown in the given figure. The bending moment along the length is

Total elongation of a prismatic bar of length L, weight W, cross-sectional area A and modulus of elasticity E, under its own weight, while hanging vertically, is

If the flange angle is β, coefficient of friction between flange and rail is μ, the derailment coefficient according to Nadal's formula should not exceed

A retaining wall 8 m high with a smooth vertical back retains a clay back fill with C' = 15 kN/m2, φ = 15° and γ = 18 kN/ m3. (Given sin 15° ≅ 0.25). The pressure at the top will, nearly, be equal to

The head over a 90° V-notch weir increases from 0.15 m to 0.3 m. The ratio of new discharge to the original discharge is, nearly equal to

The momentum correction factor (β) is used to account for

Choose the correct statement about horizontal component of resultant hydrostatic pressure on a curved submerged surface :

Unit cost of any item of work can be found by using

The odour of drying paint or varnish is derived from which of the following chemical compounds?

Which one of the following is the angular distance between the observer's meridian and the vertical circle passing through a star measured along the celestial horizon ?

A journey from work to home made by walking to the bus, travelling by bus to the station and completing the journey by train is regarded as

The correct sequence of plasticity of min-erals in soil in an increasing order is

The description of solid waste collected is as follows :Night soil - 35 tRubbish - 40 tDebris - 25 tGarbage - 40 tThe organic solids in the above composition is

Laboratory vane shear test can also be used to determine

Acidic soils are reclaimed by

Neglecting self weight, which of the following beams will have points of contraflexure ?

The ratio of the torsional moments of resistance of a solid circular shaft of diameter D, and a hollow circular shaft having external diameter D and internal diameter d is given by

A bar of square cross-section, having area of cross-section 'A' is subjected to a compressive force 'P' as shown in the figure. The intensity of the tangential stress on the oblique plane is given by

The shape factor for a solid circular section of diameter D is equal to

A continuous beam ABC of two equal spans AB and BC carries a load P at Z, the centre of BC. Then the magnitude of collapse load P is equal to

Figure given below shows a fixed beam of steel: At the point of collapse, the value of load W will be

The effective flange area in tension of a plate girder is equal to (where Af is the area of each flange and Aw, is the web area).

The slenderness ratio of a compression member in the context of Rankine's formula is defined as

For the frame shown in the figure, the distribution factors for members BC and BA at joint B are

In the truss shown in the given figure which one of the following members has no force induced in it ?

The declination of a star is 21° 15' N at a latitude of 43° 30' N. The zenith distance at the upper culmination is

The ture bearing of a line is 34° 20' 40"and the magnetic declination at the place of observation is 2° 00' 20" W on the date of observation. The magnetic bearing of the line is

In a BG railway track, the specified ruling graident is 1 in 250. The horizontal curve of 3° on a gradient of 1 in 250 will have the permissible compensated gradient of

Brake is applied on a vehicle which then skids a distance of 16 m before coming to stop. If the developed average coefficient of friction between the tyres and the pavement is 0.4, then the speed of the vehicle before skidding would have been nearly

An ascending gradient of 1 in 100 meets a descending gradient of 1 in 50, The length of summit curve required to provide overtaking sight distance of 500 m will be

If a descending gradient of 1 in 25 meets an ascending gradient of 1 in 40, then the length of valley curve required for a headlight sight distance of 100 m will be

As per I.S. 1904-1986 the permissible angular distortion with respect to steel sructures in isolated foundations resting on plastic clay is

A sand deposit has a porosity of 0.375 and a specific gravity of 2.6, the critical hydraulic gradient for the sand deposit is

In a linear reservoir, the

For stream function ψ = 3x2 - y3, the magnitude of velocity at the point (2, 1) is

An equilateral triangular plate is immersed in water as shown in the above figure. The centre of pressure below the water surface is at a depth of

For fish habitat in a river, the minimum dissolved oxygen required is

The correct sequence of the sludge digestion steps is

Consider the following statements :Ventilation of sewer lines is necessary to1. avoid building up to sewer gases.2. ensure atmospheric pressure in the waste water surface.3. ensure the safety of sewer maintenance people.4. provide oxidation facility to sewage.Which of these statements are correct ?