5814 + Mcqs in Civil Engineering Page 60 McqOptions

2951.	For batching 1:3:6 concrete mix by volume, the ingredients required per bag of 50 kg cement, are:
A.	70 litres of sand and 120 litres of aggregates
B.	70 kg of sand and 140 litres of aggregates
C.	105 litres of sand and 140 litres of aggregates
D.	105 litres of sand and 210 litres of aggregates
E.	none of these.
Answer» E. none of these.

Discussion

2952.	The grade of concrete not recommended by I.S. : 456, is
A.	M 100
B.	M 200
C.	M 300
D.	M 400
E.	M 500
Answer» F.

Discussion

2953.	The process of hardening the concrete by keeping its surface moist is known
A.	placing
B.	wetting
C.	curing
D.	compacting
E.	none of these.
Answer» D. compacting

Discussion

2954.	C.R.R.I. charts are used to obtain a relatioship between strength of concrete and
A.	water cement ratio
B.	workability
C.	grading of aggregate
D.	fineness modulus
E.	none of these.
Answer» B. workability

Discussion

2955.	Batching error means inaccuracy in the quantity of
A.	aggregates
B.	cement
C.	water
D.	all the above.
Answer» E.

Discussion

2956.	Pick up the correct statement from the following i.
A.	Higher workability indicates unexpected increase in the moisture content
B.	Higher workability indicates deficiency of sand
C.	If the concrete mix is dry, the slump is zero
D.	Concrete mix having zero slump, is unsuitable for high strength.
E.	All the above.
Answer» F.

Discussion

2957.	You are asked to construct a massive dam, the type of cement you will use, is
A.	ordinary Portland cement
B.	rapid hardening cement
C.	low heat cement
D.	blast furnace slag cement
E.	white cement.
Answer» D. blast furnace slag cement

Discussion

2958.	For the construction of cement con-certe dams, the maximum permissible size of the aggregates, is
A.	40 mm
B.	50 mm
C.	60 mm
D.	70 mm
E.	80 mm
Answer» B. 50 mm

Discussion

2959.	For preparing a test-specimen, it is necessary
A.	to mix cement and fine aggregate by dry hand
B.	to mix coarse aggregates
C.	to mix water to the cement, fine aggregates and coarse aggregates
D.	to oil inner surface of the mould and the base plate, before placing concrete
E.	all the above.
Answer» F.

Discussion

2960.	The aggregate containing moisture in pores and having its suface dry, is known as
A.	moist aggregates
B.	very dry aggregates
C.	dry aggregates
D.	saturated surface dry aggregate
E.	none of these.
Answer» E. none of these.

Discussion

2961.	1.S. Sieve Nos. 10 mm and 4.75 mm are geneally used for grading of
A.	coarse aggregates
B.	fine aggregates
C.	neither (a) nor (b)
D.	both (a) and (b)
E.	none of these.
Answer» E. none of these.

Discussion

2962.	Addition of pozzolana to ordinary port land cement, causes
A.	decrease in early strength
B.	reduction in chemical action with sulphates
C.	increase in shrinkage
D.	reduction bleeding
E.	all the above.
Answer» F.

Discussion

2963.	Too wet concrete may cause
A.	weakness of concrete
B.	excessive laitance
C.	segregation
D.	lower density
E.	all the above.
Answer» F.

Discussion

2964.	Addition of pozzolana to cement causes
A.	reduction in permeability
B.	loss of heat of hydration
C.	reduction in bleeding
D.	increase in curing time
E.	all the above.
Answer» F.

Discussion

2965.	Assuming human normal vision distance 25 cm, smallest measurable angle 20", and introcular distance 6.5 cm, the smallest depth to be discerned is
A.	0.1 mm
B.	0.5 mm
C.	1.00 mm
D.	1.1 mm.
Answer» B. 0.5 mm

Discussion

2966.	The main object of the astronomer to obtain
A.	astronomical latitude
B.	astronomical longitude
C.	astronomical bearing
D.	all of these.
Answer» E.

Discussion

2967.	Pick up the incorrect statement from the following. High oblique photographs
A.	may have tilt up to 30
B.	may include the image of the horizon
C.	may not include the image of the horizon
D.	none of these.
Answer» E.

Discussion

2968.	Pressure exerted by fully saturated air, is known
A.	partial pressure
B.	vapour pressure
C.	saturation vapour pressure
D.	saturation pressure
E.	(c) and (d) of the above.
Answer» F.

Discussion

2969.	A volume of air at constant barometric pressure may be brought to dew point by
A.	increasing the temperature
B.	decreasing the temperature
C.	neither (a) nor (b)
D.	both (a) and (b).
Answer» C. neither (a) nor (b)

Discussion

2970.	If the dew point is greater than 0 C
A.	dew will be formed
B.	frost will be formed
C.	vapours will be formed
D.	neither of these.
Answer» B. frost will be formed

Discussion

2971.	Humidity refers to
A.	temperature of the air
B.	pressure of the air
C.	moisture content of the air
D.	volume of the air.
Answer» D. volume of the air.

Discussion

2972.	A soil strata may consist of
A.	soil zone
B.	intermediate zone
C.	capillary zone
D.	ground water zone
E.	all the above.
Answer» F.

Discussion

2973.	The equation P - Q = Te index for determining the infiltration capacity, was suggested by
A.	Horton
B.	Horner
C.	Llyod
D.	Bernard.
Answer» B. Horner

Discussion

2974.	If the slope of a line for infiltration capacity curve is , the value of constant k in Horton's equation of infiltration capacity curve, is
A.	2.0
B.	2.5
C.	3.0
D.	3.5
E.	4.0.
Answer» F.

Discussion

2975.	Rotation of the camera at exposure about its vertical axis, is known as
A.	swing
B.	tilt
C.	tip
D.	none of these.
Answer» B. tilt

Discussion

2976.	The difference of height of two points whose parallax difference is 0.8 mm on a pair of stereo pair taken from a height H is 100 m. If mean photo base is 95.2 mm, the flying height is
A.	8,000 m
B.	10,000 m
C.	12,000 m
D.	14,000 m
Answer» D. 14,000 m

Discussion

2977.	The void ratio of
A.	single size coarse aggregate is roughly 0.45.
B.	graded coarse aggregate is roughly 0.040
C.	fine aggregate is roughly 0.45
D.	all the above.
Answer» E.

Discussion

2978.	The type of aggregates not suitable for high strength concrete and for pavements subjected to tension, is
A.	rounded aggregate
B.	irregular aggregate
C.	angular aggregate
D.	flaky aggregate
E.	none of these.
Answer» B. irregular aggregate

Discussion

2979.	The scale of a tilted photograph of focal length f, taken from an altitude H, along the plate parallel through plumb point, is
A.	<img src="/_files/images/civil-engineering/advanced-surveying/91-4.136-1.png">
B.	<img src="/_files/images/civil-engineering/advanced-surveying/91-4.136-2.png">
C.	<img src="/_files/images/civil-engineering/advanced-surveying/91-4.136-3.png">
D.	<img src="/_files/images/civil-engineering/advanced-surveying/91-4.136-4.png">
Answer» C. <img src="/_files/images/civil-engineering/advanced-surveying/91-4.136-3.png">

Discussion

2980.	The flying height of the camera is 1, 000 m above mean ground level, the distance of the top of a Minar from a nadir point is 10 cm and the relief displacement of Minar is 7.2 mm. The height of the Minar, is
A.	52 m
B.	62 m
C.	72 m
D.	82 m.
Answer» D. 82 m.

Discussion

2981.	The average eye base is assumed as
A.	58 mm
B.	60 mm
C.	62 mm
D.	64 mm
E.	72 mm.
Answer» E. 72 mm.

Discussion

2982.	On vertical photographs, height displacement is
A.	positive for points above datum
B.	negative for points below datum
C.	zero for points vertically below the air station
D.	all the above.
Answer» E.

Discussion

2983.	While designing an air entrained concrete
A.	water cement ratio is reduced
B.	proportion of aggregates is reduced
C.	an allowance for the entrained air is made
D.	strength of the concrete, is reduced
E.	all the above.
Answer» F.

Discussion

2984.	The station where observations are not made, but the angles at the station are used in triangulation series, is known as
A.	satellite station
B.	subsidiary station
C.	pivot station
D.	main station.
Answer» D. main station.

Discussion

2985.	To obtain photographs of an area of 1000 m average elevation, on scale 1 : 30, 000, with a camera of 30 cm focal length, the flying height is
A.	4000 m
B.	5000 m
C.	6000 m
D.	7000 m.
Answer» D. 7000 m.

Discussion

2986.	Workability of concrete mix with low water cement ratio is determined by
A.	tensile strength test
B.	slump test
C.	compaction factor test
D.	flexural strength test
E.	none of these.
Answer» D. flexural strength test

Discussion

2987.	The nearest star is so far away from the earth that the directions to it from two diametrically opposite points on the earth differs less than
A.	0.01 second
B.	0.001 second
C.	0.0001 second
D.	none of these.
Answer» D. none of these.

Discussion

2988.	Spring tides are caused when
A.	sun and moon are in line with earth
B.	solar tidal force acts opposite to lunar tidal force
C.	solar tidal force and lunar tidal force both coincide
D.	none of these.
Answer» D. none of these.

Discussion

2989.	and are the angles subtended by a point of elevation h at their air station with respective plumb points. Photo scale and focal length of the lens being S and f respectively. Parallax displacement of the point due to relief, is
A.	<img src="/_files/images/civil-engineering/advanced-surveying/90-4.120-1.png">
B.	<img src="/_files/images/civil-engineering/advanced-surveying/90-4.120-2.png">
C.	<img src="/_files/images/civil-engineering/advanced-surveying/90-4.120-3.png">
D.	<img src="/_files/images/civil-engineering/advanced-surveying/90-4.120-4.png">
E.	.
Answer» D. <img src="/_files/images/civil-engineering/advanced-surveying/90-4.120-4.png">

Discussion

2990.	The point where a vertical line through the optical centre of the camera lens intersects the ground, is known as
A.	ground principal point
B.	ground plumb point
C.	iso-centre
D.	perspective centre.
Answer» C. iso-centre

Discussion

2991.	Longitude of a place is the angular distance between the meridian of the place and
A.	the standard meridian
B.	the international date line
C.	that of Greenwich
D.	both (a) and (c) of above.
Answer» E.

Discussion

2992.	At eastern elongation, the pole star moves
A.	eastward
B.	westward
C.	northward
D.	southward.
Answer» D. southward.

Discussion

2993.	Circumpolar stars
A.	rotate round the north pole
B.	rotate round the celestial pole
C.	remain always above the horizon
D.	are seldom seen near the pole star
E.	none of these.
Answer» D. are seldom seen near the pole star

Discussion

2994.	Water is useful for
A.	running hydroelectric turbines
B.	floating the boats and ships
C.	providing steam for running locomotives
D.	warming dwelling units
E.	all the above.
Answer» F.

Discussion

2995.	Knowledge of hydrology is necessary for civil engineers for
A.	designing and construction of irrigation structures
B.	designing and construction of bridges and culverts
C.	flood control works
D.	all the above.
Answer» E.

Discussion

2996.	If the grain size of soil increases
A.	surface area decreases
B.	specific retention decreases
C.	specific yield increases
D.	water supply in well increases
E.	all the above.
Answer» F.

Discussion

2997.	Run off includes
A.	precipitation over catchment area of the stream and its attributaries
B.	surface run off
C.	ground water flow
D.	all the above.
Answer» E.

Discussion

2998.	A unit hydrograph is a hydrograph of a rain storm of a specified duration resulting from a run-off of
A.	15 mm
B.	20 mm
C.	25 mm
D.	30 mm.
Answer» C. 25 mm

Discussion

2999.	Pettis formula Q = C (P.B)5/4 cumecs, is based upon
A.	rainfall and drainage area
B.	run off and drainage area
C.	drainage area and its shape
D.	drainage area.
Answer» B. run off and drainage area

Discussion

3000.	The equation which is used for determining the velocity of ground water flow in metres per day is known as
A.	Meinzer's formula
B.	Slichter's formula
C.	Darcy's formula
D.	Hazen formula.
Answer» E.

Discussion

Explore topic-wise MCQs in Engineering.

For batching 1:3:6 concrete mix by volume, the ingredients required per bag of 50 kg cement, are:

The grade of concrete not recommended by I.S. : 456, is

The process of hardening the concrete by keeping its surface moist is known

C.R.R.I. charts are used to obtain a relatioship between strength of concrete and

Batching error means inaccuracy in the quantity of

Pick up the correct statement from the following i.

You are asked to construct a massive dam, the type of cement you will use, is

For the construction of cement con-certe dams, the maximum permissible size of the aggregates, is

For preparing a test-specimen, it is necessary

The aggregate containing moisture in pores and having its suface dry, is known as

1.S. Sieve Nos. 10 mm and 4.75 mm are geneally used for grading of

Addition of pozzolana to ordinary port land cement, causes

Too wet concrete may cause

Addition of pozzolana to cement causes

Assuming human normal vision distance 25 cm, smallest measurable angle 20", and introcular distance 6.5 cm, the smallest depth to be discerned is

The main object of the astronomer to obtain

Pick up the incorrect statement from the following. High oblique photographs

Pressure exerted by fully saturated air, is known

A volume of air at constant barometric pressure may be brought to dew point by

If the dew point is greater than 0 C

Humidity refers to

A soil strata may consist of

The equation P - Q = Te index for determining the infiltration capacity, was suggested by

If the slope of a line for infiltration capacity curve is , the value of constant k in Horton's equation of infiltration capacity curve, is

Rotation of the camera at exposure about its vertical axis, is known as

The difference of height of two points whose parallax difference is 0.8 mm on a pair of stereo pair taken from a height H is 100 m. If mean photo base is 95.2 mm, the flying height is

The void ratio of

The type of aggregates not suitable for high strength concrete and for pavements subjected to tension, is

The scale of a tilted photograph of focal length f, taken from an altitude H, along the plate parallel through plumb point, is

The flying height of the camera is 1, 000 m above mean ground level, the distance of the top of a Minar from a nadir point is 10 cm and the relief displacement of Minar is 7.2 mm. The height of the Minar, is

The average eye base is assumed as

On vertical photographs, height displacement is

While designing an air entrained concrete

The station where observations are not made, but the angles at the station are used in triangulation series, is known as

To obtain photographs of an area of 1000 m average elevation, on scale 1 : 30, 000, with a camera of 30 cm focal length, the flying height is

Workability of concrete mix with low water cement ratio is determined by

The nearest star is so far away from the earth that the directions to it from two diametrically opposite points on the earth differs less than

Spring tides are caused when

and are the angles subtended by a point of elevation h at their air station with respective plumb points. Photo scale and focal length of the lens being S and f respectively. Parallax displacement of the point due to relief, is

The point where a vertical line through the optical centre of the camera lens intersects the ground, is known as

Longitude of a place is the angular distance between the meridian of the place and

At eastern elongation, the pole star moves

Circumpolar stars

Water is useful for

Knowledge of hydrology is necessary for civil engineers for

If the grain size of soil increases

Run off includes

A unit hydrograph is a hydrograph of a rain storm of a specified duration resulting from a run-off of

Pettis formula Q = C (P.B)5/4 cumecs, is based upon

The equation which is used for determining the velocity of ground water flow in metres per day is known as