5814 + Mcqs in Civil Engineering Page 21 McqOptions

1001.	Flocculation is a process
A.	that removes algae from stabilization pond effluent
B.	that promotes the aggregation of small particles into larger particles to enhance their removal by gravity
C.	both (a) and (b)
D.	none of these.
Answer» C. both (a) and (b)

Discussion

1002.	Activated sludge is the
A.	resultant sludge removable from the aeration unit
B.	sludge settled in the humus tank
C.	sludge in the secondary tank post-aeration rich in microbial mass
D.	sludge.in the secondary tank post aeration, rich in nutrients.
Answer» D. sludge.in the secondary tank post aeration, rich in nutrients.

Discussion

1003.	When are dropman holes provided in a sewerage system ?
A.	There is a change from gravity system to pressure system
B.	There is a change in the elevation of the ground level
C.	There is change in the diameter of the sewer
D.	There is change in the direction of the sewer line
Answer» C. There is change in the diameter of the sewer

Discussion

1004.	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

1005.	The loss of prestress due to shrinkage of concrete is the product of
A.	modular ratio and percentage of steel
B.	modulus of elasticity of concrete and shrinkage of concrete
C.	modulus of elasticity of steel and shrinkage of concrete
D.	modular ratio and modulus of elasticity of steel
Answer» D. modular ratio and modulus of elasticity of steel

Discussion

1006.	Which one of the following sections performs better on the ductility criterion ?
A.	Balanced section
B.	Over-reinforced section
C.	Under-reinforced section
D.	Non-prismatic section
Answer» D. Non-prismatic section

Discussion

1007.	What is the zone where fish life might tend to progressively dwindle when waste water, is discharged into a river, called ?
A.	zone of degradation
B.	zone of active decomporsition
C.	zone of mixing
D.	zone of recovery
Answer» C. zone of mixing

Discussion

1008.	A beam of rectangular cross-section (b x d) is subjected to a torque T. What is the maximum torsional stress induced in the beam ?(Where b < d, and is a constant)
A.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/23-1287-1.png">
B.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/23-1287-2.png">
C.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/23-1287-3.png">
D.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/23-1287-4.png">
Answer» B. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/23-1287-2.png">

Discussion

1009.	Non-collodial liguids are :
A.	Newtonian fluids
B.	Plastic fluids
C.	ideal fluids
D.	dilatant fluids
Answer» D. dilatant fluids

Discussion

1010.	A 20 m chain was found to be 10 cm too long after chaining a distance of 2000 m. It was found to be 18 cm too long at the end of the day's work after chaining a total distance of 4000 m. What is the true distance if the chain was correct before the commencement of the day's work ?
A.	3962 m
B.	4019 m
C.	3981 m
D.	4038 m
Answer» C. 3981 m

Discussion

1011.	A jet of water issues from a 5 cm diameter nozzle, held vertically upwards, at a velocity of 20 m/sec. If air resistance consumers 10% of the initial energy of the jet, then it would reach a height, above the nozzle, of
A.	18.35 m
B.	19.14 m
C.	19.92 m
D.	20.00 m
Answer» B. 19.14 m

Discussion

1012.	A beam of square beam is given by section 'a' is used with its diagonal horizontal. The modulus of section of the
A.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/09-40-1.png">
B.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/09-40-2.png">
C.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/09-40-3.png">
D.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/09-40-4.png">
Answer» D. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/09-40-4.png">

Discussion

1013.	What is the magnitude of the resultant of parallel force system as shown in the figure ?
A.	70 kNm
B.	zero
C.	70 KNm couple anti clock wise
D.	90 KN veritical force and a moment of 70 kNm clock wise.
Answer» D. 90 KN veritical force and a moment of 70 kNm clock wise.

Discussion

1014.	A rectangular channel of 2.5 m width and 2 m depth of water carries a flow of 10 m3/s. The specific energy for the flow is given by
A.	1.18 m
B.	3.4 m/s
C.	2.0 m/s
D.	2.2 m
Answer» E.

Discussion

1015.	A timber beam of 100 mm width and 200 mm depth is reinforced with two steel plates of 100 mm width and 5 mm thickness as shown in figures. Which one of the following statements is correct for the same value of bending stress in the timber ?
A.	Moment of resistance in figure I will be more than that in figure II
B.	Moment of resistance in figure II will be more than that in figure I
C.	Moment of resistance in figure I will be equal to that in figure II
D.	No logical comparison can be made
Answer» B. Moment of resistance in figure II will be more than that in figure I

Discussion

1016.	In a truss work as shown in the figure given above, what is the force induced in the member DE ?
A.	50 kN (tensile)
B.	zero
C.	50 kN (compressive)
D.	25 kN (compressive)
Answer» C. 50 kN (compressive)

Discussion

1017.	The yield of a well depends upon
A.	permeability of soil
B.	area of aquifer opening into the wells
C.	actual flow velocity
D.	all of the above
Answer» E.

Discussion

1018.	Which one of the following types of sleepers has the best shock absorbing capacity as well as dampening property ?
A.	CST sleeper
B.	Wooden sleeper
C.	Concrete sleeper
D.	Steel sleeper
Answer» D. Steel sleeper

Discussion

1019.	Consider the following strengths of concrete :1. Cube strength2. Cylinder strength3. Split-tensile strength4. Modulus of ruptureThe correct sequence in decreasing order of these strengths is
A.	3, 4, 2, 1
B.	3, 4, 1, 2
C.	4, 3, 2, 1
D.	4, 3, 1, 2
Answer» E.

Discussion

1020.	A cylindrical vessel with a constant plane area of 1 m2 is rotated about its vertical axis such that the liquid inside the vessel is about to spill. If the height of the vessel is 2 m and the height of the paraboloid at 1 m, then the volume (in m3) of the liquid in the vessel will be
A.	2
B.	1.5
C.	1.0
D.	0.5
Answer» C. 1.0

Discussion

1021.	Non-disposal of solid waste may cause the spread of
A.	malaria
B.	rodents related plague
C.	typhoid
D.	dysentery
Answer» C. typhoid

Discussion

1022.	At the time of initial tensioning the maximum tensile stress in tendon immediately behind the anchorage shall Not exceed
A.	50% of the ultimate tensile strength of the wire or bar strength
B.	80% of the ultimate tensile strength of the wire or bar strength
C.	40% of the ultimate tensile strength of the wire or bar strength
D.	60% of the ultimate tensile strength of the wire strength
Answer» C. 40% of the ultimate tensile strength of the wire or bar strength

Discussion

1023.	The final deflection due to all loads including the effects of temperature, creep and shrinkage and measured from as-cast level of supports of floors, roofs and all other horizontal members should NOT exceed
A.	span/350
B.	span/300
C.	span/250
D.	span/200
Answer» D. span/200

Discussion

1024.	Consider the following statements with ragard to crack formation and its control:1. The surface width of the crack should not, in general, exceed 0.30 mm for structures not subjected to aggressive environment.2. When depth of web in a beam exceeds 750 mm, side face reinforcement @ 0.1 percent of web area should be provided on each face.3. The nominal spacing of main bars in a slab should not exceed three times the effective depth of a solid slab or 300 mm, whichever is smaller.Which of the statements given above is/are correct ?
A.	1 only
B.	1 and 2
C.	1 and 3
D.	2 and 3
Answer» D. 2 and 3

Discussion

1025.	Loses deposits are formed by
A.	physical disintegration of rock
B.	constant blowing of wind from the same direction
C.	vertical deposition of glacial till
D.	chemical weathering of residual deposits.
Answer» C. vertical deposition of glacial till

Discussion

1026.	A bulldozer operates on a 30 m stretch and moves at 2.4 kmph when pushing the earth, and returns empty at 6 kmph. The time lost in loading and shifting gears per trip is 18 seconds. Its operating factor is nearly 50 min/hour. What is the number of trips made per hour ?
A.	31
B.	33
C.	35
D.	37
Answer» E.

Discussion

1027.	What is 5 days 20 C BOD equal to ?
A.	3 days 27 C BOD
B.	4 days 30 C BOD
C.	6 days 32 C BOD
D.	7 days 35 C BOD
Answer» B. 4 days 30 C BOD

Discussion

1028.	Consider the following statements :The principle of superpositions is applied to :1. Linear elastic bodies2. Bodies subjected to small deformations. Of these statements :
A.	1 alone is corrrect
B.	1 and 2 are correct
C.	2 alone is correct
D.	neither 1 nor 2 is correct
Answer» B. 1 and 2 are correct

Discussion

1029.	Consider the following statements- with reference to a continuous beam supported at A, C and E for which the shear force diagram is shown in the given figure.There is 1. a concentrated load acting at point B2. a concentrated load acting at point D3. a uniformly distributed load acting on the portion CE.Of these statements:
A.	1, 2 and 3 are correct
B.	1 and 2 are correct
C.	2 and 3 are correct
D.	1 and 3 are correct
Answer» E.

Discussion

1030.	What is the type of soil structure having arrangement of soil particles with a 'face to face' or parallel orientation generally recognized as
A.	Honeycomb structure
B.	Single-grained structure
C.	Flocculent structure
D.	Dispersed structure
Answer» E.

Discussion

1031.	In each of the following examples certain quantity of work 'W' is done.1. The point of application of a force of (50i + 60j + 80k) in kN units moves through a distance given by (6i + 5j + 2.5k) in metres.2. A pump raises 2m3 of water through a height of 20 m (Take g = 10 m/s2).3. A shaft delivering a torque = 200 kNm makes 0.75 revolution.4. A couple (30i - 20j + 100k) in kNm units acting on a body rotates it through an angular displacement of (2i + 3j + 6k) radians.The correct sequence of these quantities of work 'W' arranged in order of their increasing magnitude is
A.	1, 4, 2, 3
B.	2, 4, 1, 3
C.	3, 2, 1, 4
D.	2, 3, 4, 1
Answer» C. 3, 2, 1, 4

Discussion

1032.	The fix of a plane table from three known points is good if
A.	the middle station is the nearest
B.	the middle station is farther than the other two stations
C.	either of the extreme stations is the nearest
D.	the middle station is close to the great circle
Answer» C. either of the extreme stations is the nearest

Discussion

1033.	Consider the following statements regarding base-line measurements :1. Very precise measurement can be done only on densely cloudy days or at nights.2. Error due to application of non-standardised pull on the tape can be either cumulative or compensating type.3. Intermediate obstructions in the measurement of base-lines can be cleared by erecting towers.Of these statements :
A.	1, 2 and 3 are correct
B.	1 and 2 are correct
C.	1 and 3 are correct
D.	2 and 3 are correct
Answer» D. 2 and 3 are correct

Discussion

1034.	The slenderness ratio of a compression member in the context of Rankine's formula is defined as
A.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/64-966-1.png">
B.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/64-966-2.png">
C.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/64-966-3.png">
D.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/64-966-4.png">
Answer» C. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/64-966-3.png">

Discussion

1035.	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

1036.	Which of the following pairs are correctly matched ?1. Standard penetration test....Relative density2. Vane shear....Cohesion3. Consolidation test....Bearing capacitySelect the correct answer using the codes given below :
A.	1, 2 and 3
B.	1 alone
C.	1 and 2
D.	2 and 3
Answer» D. 2 and 3

Discussion

1037.	Undrained strength of a clay soil can be obtained by conducting which of the following tests ?1. UC test2. Vane sheer test3. Cyclic triaxial test4. Slow direct sheer testSelect the correct answer using the code given below :
A.	1 and 2 only
B.	2 only
C.	1 and 4
D.	1, 2 and 3
Answer» E.

Discussion

1038.	The "Back sight" reading on a vertically held staff at a point A on the floor along the centre line of a railway tunnel is 3.465 m, and the "Fore sight" on the inverted staff held at the roof of the tunnel just vertically above A is 1.115 m. The height of the tunnel along the centre line at floor point A is
A.	2.310 m
B.	3.465 m
C.	4.620 m
D.	6.930 m
Answer» D. 6.930 m

Discussion

1039.	As the state of strain of an element of dense sand changes from plain strain to trivial condition, the effective angle of internal friction :
A.	increases
B.	decreases
C.	remains constant
D.	first increases and then remains constant
Answer» C. remains constant

Discussion

1040.	A concentrated load acting on the surface of a soil produces a stress of 19.1 kPa at a depth of 1 m below it. Using Boussinesq's expression, the stress at 2 m depth is
A.	9.55 kPa
B.	6.37 kPa
C.	4.775 kPa
D.	4.37 kPa
Answer» D. 4.37 kPa

Discussion

1041.	For the purpose of designing a well point system for lowering ground water table in a sandy silt deposit, the coefficient of permeability of the soil is to be determined. Which one of the following methods would be most suitable ?
A.	Constant Head Permeameter Test
B.	Variable Head Permeameter Test
C.	Pumping out Test in the field
D.	Pumping in Test in the field
Answer» D. Pumping in Test in the field

Discussion

1042.	In which one of the following grades of a highway is an emergency escape ramp provided ?
A.	1 in 200
B.	Zero grade
C.	Downgrade
D.	Upgrade
Answer» D. Upgrade

Discussion

1043.	In a cohesionless soil deposit having a unit weight of 1.5 t/m3and an angle of internal friction of 30 the active and passivelateral earth pressure intensities (in t/m2) at a depth of 10 m will, respectively, be
A.	15 and
B.	5 and 15
C.	10 and 20
D.	20 and 10
Answer» C. 10 and 20

Discussion

1044.	Consider the following statements: An aqueduct is a cross drainage work in which(a) a canal is carried over the drainage channel(b) a drainage channel is carried over the canal(c) both drainage channel and canal are at the same level.Which of the statements given above is/are correct ?
A.	1 only
B.	1 and 2 only
C.	2 and 3 only
D.	1, 2 and 3
Answer» B. 1 and 2 only

Discussion

1045.	The distribution system configuration shown in the following figure is called
A.	dead end system
B.	grid iron system
C.	radial system
D.	ring system
Answer» C. radial system

Discussion

1046.	Permissible limit of cant deficiency for Broad Gauge (B.G.) is
A.	50 mm
B.	60 mm
C.	75 mm
D.	88 mm
Answer» D. 88 mm

Discussion

1047.	The slenderness ratio of lacing bars should not exceed :
A.	100
B.	200
C.	145
D.	180
Answer» D. 180

Discussion

1048.	A sample of ground water at a pH of 7.0 contains 122 mg/l of bicarbonates. What is the alkalinity of this water (in terms of CaC0 ) ?
A.	120 mg/1
B.	60 mg/1
C.	100 mg/1
D.	200 mg/l
Answer» D. 200 mg/l

Discussion

1049.	Soil at a site consists of two layers. The top layer has permeability k units and bottom layer has permeability 5k units. If the thickness of both the layers is equal, then what is the average permeability in the vertical direction ?
A.	3k units
B.	(5/3)k units
C.	(6/5)k units
D.	(5/6)k units
Answer» C. (6/5)k units

Discussion

1050.	What is the maximum bending moment at mid-span of the beam given below ?
A.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/57-1540-1.png">
B.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/57-1540-2.png">
C.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/57-1540-3.png">
D.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/57-1540-4.png">
Answer» D. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/57-1540-4.png">

Discussion

Explore topic-wise MCQs in Engineering.

Flocculation is a process

Activated sludge is the

When are dropman holes provided in a sewerage system ?

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

The loss of prestress due to shrinkage of concrete is the product of

Which one of the following sections performs better on the ductility criterion ?

What is the zone where fish life might tend to progressively dwindle when waste water, is discharged into a river, called ?

A beam of rectangular cross-section (b x d) is subjected to a torque T. What is the maximum torsional stress induced in the beam ?(Where b &lt; d, and is a constant)

Non-collodial liguids are :

A 20 m chain was found to be 10 cm too long after chaining a distance of 2000 m. It was found to be 18 cm too long at the end of the day's work after chaining a total distance of 4000 m. What is the true distance if the chain was correct before the commencement of the day's work ?

A jet of water issues from a 5 cm diameter nozzle, held vertically upwards, at a velocity of 20 m/sec. If air resistance consumers 10% of the initial energy of the jet, then it would reach a height, above the nozzle, of

A beam of square beam is given by section 'a' is used with its diagonal horizontal. The modulus of section of the

What is the magnitude of the resultant of parallel force system as shown in the figure ?

A rectangular channel of 2.5 m width and 2 m depth of water carries a flow of 10 m3/s. The specific energy for the flow is given by

A timber beam of 100 mm width and 200 mm depth is reinforced with two steel plates of 100 mm width and 5 mm thickness as shown in figures. Which one of the following statements is correct for the same value of bending stress in the timber ?

In a truss work as shown in the figure given above, what is the force induced in the member DE ?

The yield of a well depends upon

Which one of the following types of sleepers has the best shock absorbing capacity as well as dampening property ?

Consider the following strengths of concrete :1. Cube strength2. Cylinder strength3. Split-tensile strength4. Modulus of ruptureThe correct sequence in decreasing order of these strengths is

A cylindrical vessel with a constant plane area of 1 m2 is rotated about its vertical axis such that the liquid inside the vessel is about to spill. If the height of the vessel is 2 m and the height of the paraboloid at 1 m, then the volume (in m3) of the liquid in the vessel will be

Non-disposal of solid waste may cause the spread of

At the time of initial tensioning the maximum tensile stress in tendon immediately behind the anchorage shall Not exceed

The final deflection due to all loads including the effects of temperature, creep and shrinkage and measured from as-cast level of supports of floors, roofs and all other horizontal members should NOT exceed

Loses deposits are formed by

A bulldozer operates on a 30 m stretch and moves at 2.4 kmph when pushing the earth, and returns empty at 6 kmph. The time lost in loading and shifting gears per trip is 18 seconds. Its operating factor is nearly 50 min/hour. What is the number of trips made per hour ?

What is 5 days 20 C BOD equal to ?

Consider the following statements :The principle of superpositions is applied to :1. Linear elastic bodies2. Bodies subjected to small deformations. Of these statements :

What is the type of soil structure having arrangement of soil particles with a 'face to face' or parallel orientation generally recognized as

The fix of a plane table from three known points is good if

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

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

Which of the following pairs are correctly matched ?1. Standard penetration test....Relative density2. Vane shear....Cohesion3. Consolidation test....Bearing capacitySelect the correct answer using the codes given below :

Undrained strength of a clay soil can be obtained by conducting which of the following tests ?1. UC test2. Vane sheer test3. Cyclic triaxial test4. Slow direct sheer testSelect the correct answer using the code given below :

As the state of strain of an element of dense sand changes from plain strain to trivial condition, the effective angle of internal friction :

A concentrated load acting on the surface of a soil produces a stress of 19.1 kPa at a depth of 1 m below it. Using Boussinesq's expression, the stress at 2 m depth is

For the purpose of designing a well point system for lowering ground water table in a sandy silt deposit, the coefficient of permeability of the soil is to be determined. Which one of the following methods would be most suitable ?

In which one of the following grades of a highway is an emergency escape ramp provided ?

In a cohesionless soil deposit having a unit weight of 1.5 t/m3and an angle of internal friction of 30 the active and passivelateral earth pressure intensities (in t/m2) at a depth of 10 m will, respectively, be

Consider the following statements: An aqueduct is a cross drainage work in which(a) a canal is carried over the drainage channel(b) a drainage channel is carried over the canal(c) both drainage channel and canal are at the same level.Which of the statements given above is/are correct ?

The distribution system configuration shown in the following figure is called

Permissible limit of cant deficiency for Broad Gauge (B.G.) is

The slenderness ratio of lacing bars should not exceed :

A sample of ground water at a pH of 7.0 contains 122 mg/l of bicarbonates. What is the alkalinity of this water (in terms of CaC0 ) ?

Soil at a site consists of two layers. The top layer has permeability k units and bottom layer has permeability 5k units. If the thickness of both the layers is equal, then what is the average permeability in the vertical direction ?

What is the maximum bending moment at mid-span of the beam given below ?

A beam of rectangular cross-section (b x d) is subjected to a torque T. What is the maximum torsional stress induced in the beam ?(Where b < d, and is a constant)