5814 + Mcqs in Civil Engineering Page 37 McqOptions

1801.	Radial splits in timber originating from 'Bark' and narrowing towards the 'Pith' are known as
A.	heart shakes
B.	star shakes
C.	cup shakes
D.	knots
Answer» C. cup shakes

Discussion

1802.	A reinforced concrete beam is designed for the limit states of collapse in flexure a shear. Which of the following limit states of serviceability have to be checked ? 1. Deflection 2. Cracking 3. Durability Select the correct answer using the codes given below :
A.	1 alone
B.	1 and 2
C.	2 and 3
D.	1, 2 and 3
Answer» D. 1, 2 and 3

Discussion

1803.	Two men, one stronger than the other have to lift a load of 1200 N which is suspended from a light rod of length 3 m. The load is suspended between the two persons positioned at the two ends of the rod. The weaker of the two persons can carry a load up to 400 N only. The distance of the load to be suspended from the stronger person such that the weaker person has the full share of 400 N is
A.	0.5 m
B.	1.0 m
C.	1.5 m
D.	2.0 m
Answer» E.

Discussion

1804.	Consider the following statements :1. Pumps in series operation allow the head to increase.2. Pumps in series operation increase the flow rate.3. Pumps ill parallel operation increase the flow rate.4. Pumps in parallel operation allow the head to increase.Which of these statements are correct ?
A.	1 and 3
B.	1 and 4
C.	2 and 4
D.	3 and 4
Answer» B. 1 and 4

Discussion

1805.	In a closed theodolite traverse, the sum of the latitudes is + 5.080 m and the sum of the departures is -51.406 m. The sum of the traverse legs is 20.525 km. The accuracy of traverse is nearly equal to
A.	1 : 300
B.	1 : 400
C.	1 : 500
D.	1 : 1000
Answer» C. 1 : 500

Discussion

1806.	The shape factor for a solid circular section of diameter D is equal to
A.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/66-975-1.png">
B.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/66-975-2.png">
C.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/66-975-3.png">
D.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/66-975-4.png">
Answer» D. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/66-975-4.png">

Discussion

1807.	In a particular material, if the modulus of rigidity is equal to the bulk modulus, then the Poisson's ratio will be
A.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/98-593-1.png">
B.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/98-593-2.png">
C.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/98-593-3.png">
D.	1
Answer» B. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/98-593-2.png">

Discussion

1808.	The weight of aggregate having specific gravity 2.65, completely filled into a cylinder of volume 0.003 m3 is 5.2 kg. What is the value of the angularity index of aggregate (approximately) as given by Murdock ?
A.	1
B.	0.34
C.	0.15
D.	0.05
Answer» C. 0.15

Discussion

1809.	Which of the following pairs in respect of ordinary Portland cement (OPC) are correctly matched1. Initial setting time....30 minutes2. Final setting time....10 hours3. Normal consistency....10%Select the correct answer from the codes given below :
A.	1, 2 and 3
B.	2 and 3
C.	1 and 2
D.	1 and 3
Answer» D. 1 and 3

Discussion

1810.	Which one of the following is the correct differential equation of the shape of the cable (similar to electrical cables) of unit weight 'q' with small slopes, as shown in the given figure ?
A.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/97-585-1.png">
B.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/97-585-2.png">
C.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/97-585-3.png">
D.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/97-585-4.png">
Answer» B. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/97-585-2.png">

Discussion

1811.	Which one of following statements associated with groynes :1. Hydraulic behaviour of a system of groynes is influenced by the characteristics of particles that constitute the littoral drift.2. Groyne is constructed approximately parallel to shore.Which of the statements given above is/are correct ?
A.	1 only
B.	2 only
C.	Both 1 and 2
D.	Neither 1 nor 2
Answer» D. Neither 1 nor 2

Discussion

1812.	Which one of the following is employed to determine strength of hardened existing concrete structure ?
A.	Bullet test
B.	Kelly ball test
C.	Rebound hammer test
D.	Cone penetrometer
Answer» D. Cone penetrometer

Discussion

1813.	Reinforced concrete door and window frames can be compacted using :1. needle vibrator2. plate vibrator3. form vibrator4. tappingThe correct sequence of these equipment in order of preference (from the best to the worst) is
A.	2, 3, 4, 1
B.	3, 2, 1, 4
C.	2, 3, 1, 4
D.	3, 2, 4, 1
Answer» E.

Discussion

1814.	If the Froude number of flow in an open channel is more than 1.0 then the flow is said to be
A.	critical
B.	shooting
C.	streaming
D.	transitional
Answer» C. streaming

Discussion

1815.	A gradually applied load W is suspended by with ropes AB and CD as shown in the figure. The wires AB and CD, made of the same material and of the same cross-section are connected to a rigid block from which the load W is suspended in such a way that both the ropes stretch by the same amount. If the stress in AB and CD are p1 and p2 respectively, then the ratio - will be
A.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/92-562-1.png">
B.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/92-562-2.png">
C.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/92-562-3.png">
D.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/92-562-4.png">
Answer» B. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/92-562-2.png">

Discussion

1816.	A T-beam roof section has the following particulars :Thickness of slab 100 mmWidth of rib 300 mmDepth of beam 500 mmCentre to centre distance of beams 3.0 mEffective span of beams 6.0 mDistance between points of contraflexure is 3.60 m.The effective width of flange of the beam is
A.	3000 mm
B.	1900 mm
C.	1600 mm
D.	1500 mm
Answer» E.

Discussion

1817.	A dry sand specimen is put through a triaxial test. The cell pressure is 50 kPa and the deviator stress at failure is 100 Pa. The angle of internal friction for the sand specimen is
A.	15
B.	30
C.	37
D.	45
Answer» C. 37

Discussion

1818.	Consider the following statements :Curing of concrete is necessary because(a) concrete needs more water for chemical reaction(b) it is necessary to protect the water initially mixed in concrete from being lost during evaporation(c) penetration of surrounding water increases the strength of concrete Which of the statements given above is/are correct ?
A.	1, 2 and 3
B.	1 and 3 only
C.	2 only
D.	3 only
Answer» D. 3 only

Discussion

1819.	The combined correction for curvature and refraction for a distance of 1400 m is
A.	0.153 m
B.	0.132 m
C.	0.094 m
D.	0.021 m
Answer» C. 0.094 m

Discussion

1820.	Two reservoirs at different surface elevations are connected by a set of two pipes A and B of same diameter and length in parallel. If the friction factor of A is 4 times that of the pipe B, what is the ratio of the discharge in A to that in B ?
A.	0.25
B.	4.0
C.	2.0
D.	0.5
Answer» D. 0.5

Discussion

1821.	Which of the following should be employed to provide lateral support to the beams ?1. Bracing of compression flanges.2. Shear connectors.3. Bracing of tension flanges4. Embedding compression flanges into R.C.C. slab.Select the correct answer using the codes given below :
A.	1 only
B.	1 and 4
C.	2 and 3
D.	1, 2 and 4
Answer» E.

Discussion

1822.	The defect which develops due to uncontrolled and non-uniform loss of moisture from wood is known as which one of the following ?
A.	Kont
B.	Shake
C.	Warping
D.	Cross grain
Answer» D. Cross grain

Discussion

1823.	On the basis of the data given in the following figures, the bending moment under the load would work out to
A.	2 kN.m
B.	4 kN.m
C.	6 kN.m
D.	12 kN.m
Answer» E.

Discussion

1824.	Consider the following statements in respect of the critical depth of flow in a prismatical rectangular channel:1. For known specific emergy, discharge is minimum.2. For known discharge, the specific energy is minimum.Which of the statements given above is/are correct ?
A.	1 only
B.	2 only
C.	Both 1 and 2
D.	neither 1 nor 2
Answer» D. neither 1 nor 2

Discussion

1825.	What is the innermost portion of approach zone which is the most critical portion from obstruction viewpoint, called ?
A.	Outer horizontal surface
B.	Conical surface
C.	Inner horizontal surface
D.	Clear zone
Answer» C. Inner horizontal surface

Discussion

1826.	A circular plate 100 mm diameter is welded to another plate by means of 6 mm fillet weld. If the permissible shearing stress in the weld equals 10 kg/mm2, then the greatest twisting moment that can be resisted by the weld will be
A.	424 kg.m
B.	300 kg.m
C.	212 kg.m
D.	60 kg.m
Answer» D. 60 kg.m

Discussion

1827.	A cohesionless soil having an angle of shearing resistance of , is standing at a slope angle of i. The factor of safety of the slope is tan i
A.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/18-149-1.png">
B.	tan i - tan
C.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/18-149-3.png">
D.	tan - tan i
Answer» D. tan - tan i

Discussion

1828.	A steel cable of 2 cm diameter is used to lift a load of 500 kg. Given that, E = 2 x 106 kg/cm2 and the length of the cable is 10 m, the elongation of the cable due to the load will be
A.	0.5 cm
B.	0.25
C.	1 cm
D.	1/ cm
Answer» C. 1 cm

Discussion

1829.	Consider the following statements regarding tensile test diagrams for carbon steel with varying carbon contents :As the carbon content increases1. the ultimate strength of steel decreases 2. the elongation before fracture increases3. the ductility of the metal decreases 4. the ultimate strength increases.Of these statements :
A.	3 and 4 are correct
B.	1 and 3 are correct
C.	1, 2 and 3 are correct
D.	1 and 2 are correct
Answer» D. 1 and 2 are correct

Discussion

1830.	Negative skin friction on a pile under vertical compressive load acts
A.	downwards and increases the load carrying capacity of the pile
B.	downwards and reduces the load carrying capacity of the pile
C.	upwards and increases the load carrying capacity of the pile
D.	downwards and maintains the same load carrying capacity of the pile
Answer» C. upwards and increases the load carrying capacity of the pile

Discussion

1831.	Consider the following :1. Initial consolidation.2. Primary consolidation.3. Secondary consolidation.4. Final consolidation.The three stages which would be relevant to consolidation of a soil deposit includes
A.	1, 2 and 3
B.	2, 3 and 4
C.	1, 3 and 4
D.	1, 2 and 4
Answer» B. 2, 3 and 4

Discussion

1832.	Given that for a soil deposit, K0 = earth pressure coefficient at rest, Ka = active earth pressure coefficient, Kp = passive earth pressure coefficient and u = Poisson's ratio, the value of (1 - ) is given by
A.	<i>K<sub>a</sub>/K<sub>p</sub></i>
B.	<i>K<sub>0</sub>/K<sub>a</sub></i>
C.	<i>K<sub>P</sub>/K<sub>a</sub></i>
D.	1/
E.	<i>K<sub>0</sub></i>
Answer» E. <i>K<sub>0</sub></i>

Discussion

1833.	In water treatment process, the chemical used for defluoridation is
A.	Alum
B.	Lime
C.	Potassium permanganate
D.	Sodium aluminate
Answer» B. Lime

Discussion

1834.	As elastic bar of length 'l', cross-sectional area A, Young's modulus of elasticity E and self-weight W is hanging vertically. It is subjected to a load P applied axially at the bottom end. The total elongation of the bar is given by.
A.	<i>WI/AE + PI/AE </i>
B.	<i>WI/2AE + PI/AE </i>
C.	<i>WI/2AE + PI/2AE</i>
D.	<i>WI/AE + PI/2AE</i>
Answer» C. <i>WI/2AE + PI/2AE</i>

Discussion

1835.	Consider the following statements :1. Mastic asphalt is a mixture of hard grade bitumen or blown bitumen, minerals filter and fine aggregates.2. % of binder content in the mastic asphalt is 17-20 percent by weight of the aggregates. Which of the statements given above is/are correct ?
A.	1 only
B.	2 only
C.	Both 1 and 2
D.	Neither 1 nor 2
Answer» D. Neither 1 nor 2

Discussion

1836.	An element is subjected to stress as given in figure. For this state of stress, what is the maximum shear stress ?
A.	2.5 MPa
B.	5 MPa
C.	10 MPa
D.	15 MPa
Answer» C. 10 MPa

Discussion

1837.	What is the maximum possible value of Poisson's ratio for a non-dilatant material ?
A.	0.67
B.	0.50
C.	0.33
D.	0.25
Answer» D. 0.25

Discussion

1838.	Which one of the following would contain water with the maximum amount of turbidity ?
A.	Lakes
B.	Oceans
C.	Rivers
D.	Wells
Answer» D. Wells

Discussion

1839.	A bar of length l is uniformly tapering from a diameter d1 at one and to a diameter d2 at the other end. The bar is subjected to an axial tensile loads. What is the total elongation (where E = Young's modulus of elasticity. )
A.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/58-1546-1.png">
B.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/58-1546-2.png">
C.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/58-1546-3.png">
D.	4 +
E.	<img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/58-1546-1.png">
Answer» B. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/58-1546-2.png">

Discussion

1840.	A welded steel plate girder consisting of two flange plates of 350 mm x 16 mm and a web plate of 1000 mm x 6 mm, requires
A.	nostiffeners
B.	vertical stiffeners
C.	intermediate vertical stiffeners
D.	vertical and horizontal stiffeners
Answer» D. vertical and horizontal stiffeners

Discussion

1841.	The following steps are necessary to obtain sufficient accuracy with the tape :1. Keeping uniform tension on tape for each measurement:2. "Breaking" tape on slopes are necessary to keep the tape level.3. Keeping accurate count of the stations.4. Keeping the tape on the line being measured.The correct sequence of these steps is
A.	4, 2, 1, 3
B.	2, 3, 4, 1
C.	4, 1, 2, 3
D.	3, 2, 1, 4
Answer» D. 3, 2, 1, 4

Discussion

1842.	A bar of circular cross-section varies uniformly from a cross-section 2D to D. If extension of the bar is calculated treating it as a bar of average diameter, then the percentage error will be
A.	10
B.	25
C.	33.33
D.	50
Answer» C. 33.33

Discussion

1843.	While concreting in cold weather where frosting is also likely, one uses
A.	high quality portland cement with minimum volumes of added water
B.	high alumina cement with calcium chloride additives
C.	portland cement together with calcium chloride additives
D.	a mixture of high alumina cement and portland cement.
Answer» D. a mixture of high alumina cement and portland cement.

Discussion

1844.	The correct sequence, in the direction of the flow of water for installations in the hydro-power plant is
A.	reservoir, surge tank turbine, penstock
B.	reservoir, penstock, surge tank, turbine
C.	reservoir, penstock, turbine, surge tank
D.	reservoir, surge tank, penstock, turbine
Answer» C. reservoir, penstock, turbine, surge tank

Discussion

1845.	Consider the following statement :1. Hydraulic gradient required to initiate "quick" condition is independent of the ratio of volume of voids of solids in a soil mass.2. Initiation of piping under hydraulic structures can be prevented by increasing the length of flow path of water.3. Seepage pressure is independent of the coefficient of permeability. Of these statement :
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» E.

Discussion

1846.	Which of the following waste disposal tasks are achieved by a septic tank with its dispersion tranch ?1. Aerobic sluge digestion2. Settling and anaerobic sludge digestion3. Anaerobic sewage stabilisation4. Bio-oxidation of effluentSelect the correct answer using the codes given below :
A.	1 and 3
B.	3 and 4
C.	2 and 4
D.	1 and 4
Answer» D. 1 and 4

Discussion

1847.	The expansion and shrinkage of plywoods are comparatively very low as
A.	they are held in position by adhesives
B.	they are glued under pressure
C.	plies are placed at right angles to each other
D.	they are prepared from veneers
Answer» D. they are prepared from veneers

Discussion

1848.	Which one of the following methods is usually adopted for site welding of rails ?
A.	Gas pressure welding
B.	electric are welding
C.	Thermit welding
D.	Flash butt welding
Answer» C. Thermit welding

Discussion

1849.	In a simply supported beam AB of span L, the midpoint is C. In case-1, the beam is loaded by a central concentrated load W. In case-2, the beam is subjected to a U.D.L. of intensity w such that wL = W. The ratio of central deflection in case-1 to that in case-2 is
A.	5/3
B.	3/5
C.	5/8
D.	8/5
Answer» E.

Discussion

1850.	A right-angled triangular channel, symmetrical in section about the vertical, carries a discharge of 5 m3 /s with a velocity of 1.25 m/s. What is the approximate value of the Froude number of the flow ?
A.	0.3
B.	0.4
C.	0.5
D.	0.6
Answer» C. 0.5

Discussion

Explore topic-wise MCQs in Engineering.

Radial splits in timber originating from 'Bark' and narrowing towards the 'Pith' are known as

A reinforced concrete beam is designed for the limit states of collapse in flexure a shear. Which of the following limit states of serviceability have to be checked ? 1. Deflection 2. Cracking 3. Durability Select the correct answer using the codes given below :

Consider the following statements :1. Pumps in series operation allow the head to increase.2. Pumps in series operation increase the flow rate.3. Pumps ill parallel operation increase the flow rate.4. Pumps in parallel operation allow the head to increase.Which of these statements are correct ?

In a closed theodolite traverse, the sum of the latitudes is + 5.080 m and the sum of the departures is -51.406 m. The sum of the traverse legs is 20.525 km. The accuracy of traverse is nearly equal to

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

In a particular material, if the modulus of rigidity is equal to the bulk modulus, then the Poisson's ratio will be

The weight of aggregate having specific gravity 2.65, completely filled into a cylinder of volume 0.003 m3 is 5.2 kg. What is the value of the angularity index of aggregate (approximately) as given by Murdock ?

Which of the following pairs in respect of ordinary Portland cement (OPC) are correctly matched1. Initial setting time....30 minutes2. Final setting time....10 hours3. Normal consistency....10%Select the correct answer from the codes given below :

Which one of the following is the correct differential equation of the shape of the cable (similar to electrical cables) of unit weight 'q' with small slopes, as shown in the given figure ?

Which one of following statements associated with groynes :1. Hydraulic behaviour of a system of groynes is influenced by the characteristics of particles that constitute the littoral drift.2. Groyne is constructed approximately parallel to shore.Which of the statements given above is/are correct ?

Which one of the following is employed to determine strength of hardened existing concrete structure ?

Reinforced concrete door and window frames can be compacted using :1. needle vibrator2. plate vibrator3. form vibrator4. tappingThe correct sequence of these equipment in order of preference (from the best to the worst) is

If the Froude number of flow in an open channel is more than 1.0 then the flow is said to be

A T-beam roof section has the following particulars :Thickness of slab 100 mmWidth of rib 300 mmDepth of beam 500 mmCentre to centre distance of beams 3.0 mEffective span of beams 6.0 mDistance between points of contraflexure is 3.60 m.The effective width of flange of the beam is

A dry sand specimen is put through a triaxial test. The cell pressure is 50 kPa and the deviator stress at failure is 100 Pa. The angle of internal friction for the sand specimen is

The combined correction for curvature and refraction for a distance of 1400 m is

Two reservoirs at different surface elevations are connected by a set of two pipes A and B of same diameter and length in parallel. If the friction factor of A is 4 times that of the pipe B, what is the ratio of the discharge in A to that in B ?

Which of the following should be employed to provide lateral support to the beams ?1. Bracing of compression flanges.2. Shear connectors.3. Bracing of tension flanges4. Embedding compression flanges into R.C.C. slab.Select the correct answer using the codes given below :

The defect which develops due to uncontrolled and non-uniform loss of moisture from wood is known as which one of the following ?

On the basis of the data given in the following figures, the bending moment under the load would work out to

Consider the following statements in respect of the critical depth of flow in a prismatical rectangular channel:1. For known specific emergy, discharge is minimum.2. For known discharge, the specific energy is minimum.Which of the statements given above is/are correct ?

What is the innermost portion of approach zone which is the most critical portion from obstruction viewpoint, called ?

A circular plate 100 mm diameter is welded to another plate by means of 6 mm fillet weld. If the permissible shearing stress in the weld equals 10 kg/mm2, then the greatest twisting moment that can be resisted by the weld will be

A cohesionless soil having an angle of shearing resistance of , is standing at a slope angle of i. The factor of safety of the slope is tan i

A steel cable of 2 cm diameter is used to lift a load of 500 kg. Given that, E = 2 x 106 kg/cm2 and the length of the cable is 10 m, the elongation of the cable due to the load will be

Negative skin friction on a pile under vertical compressive load acts

Consider the following :1. Initial consolidation.2. Primary consolidation.3. Secondary consolidation.4. Final consolidation.The three stages which would be relevant to consolidation of a soil deposit includes

Given that for a soil deposit, K0 = earth pressure coefficient at rest, Ka = active earth pressure coefficient, Kp = passive earth pressure coefficient and u = Poisson's ratio, the value of (1 - ) is given by

In water treatment process, the chemical used for defluoridation is

As elastic bar of length 'l', cross-sectional area A, Young's modulus of elasticity E and self-weight W is hanging vertically. It is subjected to a load P applied axially at the bottom end. The total elongation of the bar is given by.

Consider the following statements :1. Mastic asphalt is a mixture of hard grade bitumen or blown bitumen, minerals filter and fine aggregates.2. % of binder content in the mastic asphalt is 17-20 percent by weight of the aggregates. Which of the statements given above is/are correct ?

An element is subjected to stress as given in figure. For this state of stress, what is the maximum shear stress ?

What is the maximum possible value of Poisson's ratio for a non-dilatant material ?

Which one of the following would contain water with the maximum amount of turbidity ?

A bar of length l is uniformly tapering from a diameter d1 at one and to a diameter d2 at the other end. The bar is subjected to an axial tensile loads. What is the total elongation (where E = Young's modulus of elasticity. )

A welded steel plate girder consisting of two flange plates of 350 mm x 16 mm and a web plate of 1000 mm x 6 mm, requires

A bar of circular cross-section varies uniformly from a cross-section 2D to D. If extension of the bar is calculated treating it as a bar of average diameter, then the percentage error will be

While concreting in cold weather where frosting is also likely, one uses

The correct sequence, in the direction of the flow of water for installations in the hydro-power plant is

Which of the following waste disposal tasks are achieved by a septic tank with its dispersion tranch ?1. Aerobic sluge digestion2. Settling and anaerobic sludge digestion3. Anaerobic sewage stabilisation4. Bio-oxidation of effluentSelect the correct answer using the codes given below :

The expansion and shrinkage of plywoods are comparatively very low as

Which one of the following methods is usually adopted for site welding of rails ?

In a simply supported beam AB of span L, the midpoint is C. In case-1, the beam is loaded by a central concentrated load W. In case-2, the beam is subjected to a U.D.L. of intensity w such that wL = W. The ratio of central deflection in case-1 to that in case-2 is

A right-angled triangular channel, symmetrical in section about the vertical, carries a discharge of 5 m3 /s with a velocity of 1.25 m/s. What is the approximate value of the Froude number of the flow ?