civil engineering Mcqs
3601. With increase in moisture content, the bulking of sand_______________?
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A. increases

B. first decreases to a certain minimum value and then increases

C. first increases to a certain maximum value and then decreases

D. decreases

3602. The main function of alumina in brick earth is_______________?
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A. to make the brick durable

B. to make the brick impermeable

C. to prevent shrinkage

D. to impart plasticity
3603. Cross cut saw is used for_______________?
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A. dressing stones

B. cutting soft stones

C. cutting hard stones

D. cutting large blocks of stones

3604. A first class brick when immersed in cold water for 24 hours should not absorb water more than______________?
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A. 22%

B. 15%

C. 20%

D. 25%

3605. Percentage of silica in a good brick earth lies between_______________?
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A. 70 to 80%

B. 50 to 60%

C. 5 to 10%

D. 20 to 30%

3606. Which of the following bricks are used for lining of furnaces ?
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A. refractory bricks

B. underburnt bricks

C. first class bricks

D. overburnt bricks

3607. Plywood has the advantage of_____________?
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A. none of the above

B. greater tensile strength in longer direction

C. same tensile strength in all directions

D. greater tensile strength in shorter direction

3608. Advantage of a clamp compared to a kiln for burning bricks is that_______________?
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A. it has less initial cost

B. it gives more output of first class bricks

C. it takes less time for burning

D. it is suitable when bricks are required in large numbers

3609. The preparation of surface of stone to obtain plain edges or to obtain stones of required size and shape is known as______________?
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A. quarrying of stones

B. dressing of stones

C. seasoning of stones

D. blasting of stones

3610. Hydraulic lime is obtained by_______________?
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A. calcination of pure clay

B. adding water to quick lime

C. burning of lime stone

D. burning of kankar
3611. Which of the following stone is best suited for construction of piers and abutments of a railway bridge ?
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A. granite

B. lime stone

C. sand stone

D. quartzite

3612. Which of the following cements is suitable for use in massive concrete structures such as large dams ?
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A. sulphate resisting cement

B. rapid hardening cement

C. low heat cement

D. ordinary Portland cement

3613. Assertion A : Normally turpentine oil is recommended as thinner for indoor painting. Reason R : Turpentine oil is costlier than other thinners. Select your answer according to the coding system given below ?
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A. Both A and R are true and R is the correct explanation of A

B. Both A and R are true but R is not the correct explanation of A

C. A is true but R is false

D. A is false but R is true

3614. Based on the following rocks and minerals, select the correct statement, quartz, shale, basalt, granite, marble, gypsum, mica______________?
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A. quartz and mica are minerals

B. basalt and marble are the only metamorphic rocks

C. granite is the only igneous rock

D. there is no sedimentary rock

3615. The maximum total settlement for raft foundation on clayey soils should be limited to______________?
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A. 25 mm

B. 40 to 65 mm

C. 65 to 100 mm

D. 25 to 40 mm

3616. Le Chateliers device is used for determining the_______________?
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A. compressive strength of cement

B. soundness of cement

C. setting time of cement

D. tensile strength of cement

3617. The ratio of the thickness of web to that of flange of steel rolled structural beams and channels is______________?
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A. less than 1 in beams but greater than 1 in channels

B. greater than 1

C. less than 1

D. equal to 1

3618. A queen closer is a______________?
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A. brick laid with its breadth parallel to the face or direction of wall

B. brick laid with its length parallel to the face or direction of wall

C. brick having the same length and depth as the other bricks but half the breadth

D. brick with half the width at one end and full width at the other

3619. The maximum quantity of calcium chloride used as an accelerator in cement in percentage by weight of cement is_______________?
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A. 2

B. 3

C. 4

D. 1

3620. For testing compressive strength of cement, the size of cube used is_______________?
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A. 100 mm

B. 70.6 mm

C. 150 mm

D. 50 mm
3621. Three basic raw materials which are needed in large quantities for production of steel are_______________?
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A. iron ore, carbon and lime stone

B. iron ore, coal and lime stone

C. iron ore, coal and sulphur

D. iron ore, carbon and sulphur

3622. Sandstone is a ________________?
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A. ="color: #003f1a;">i. sedimentary rock

B. aqueous rock

C. . silicious rock </strong></span>

3623. Jumper is a tool used for_______________?
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A. quarrying of stones

B. none of the above

C. dressing of stones

D. testing of stones

3624. The ultimate tensile strength of structural mild steel is about_________________?
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A. 160N/mm2

B. 260N/mm2

C. 420 N/mm2

D. 520 N/mm2

3625. The vertical distance between the springing line and highest point of the innercurve of an arch is known as______________?
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A. extrados

B. rise

C. spandril

D. intrados

3626. The type of roof suitable in plains where rainfall is meagre and temperature is high is______________?
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A. flat roof

B. shell roof

C. pitched and sloping roof

D. none of the above

3627. The basic purpose of a retarder in concrete is_____________?
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A. to increase the initial setting time of cement paste in concrete

B. to decrease the initial setting time of cement paste in concrete

C. to improve the workability of concrete mix

D. to render the concrete more water tight

3628. The age of a tree can be known by examining_________________?
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A. heart wood

B. annular rings

C. medullary rays

D. cambium layer

3629. In case of foundations on black cotton soils, the most suitable method to increase the bearing capacity of soils is to_________________?
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A. compact the soil

B. drain the soil

C. increase the depth of foundation

D. replace the poor soil
3630. Minimum thickness of wall where single flemish bond can be used is_____________?
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A. two bricks thick

B. one brick thick

C. one and a half bricks thick

D. half brick thick

3631. The percentage of alumina in a good brick earth lies between________________?
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A. 20 to 30%

B. 50 to 60%

C. 70 to 80%

D. 5 to 10%

3632. The radial splits which are wider on the outside of the log and narrower towards the pith are known as________________?
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A. heart shakes

B. rindgalls

C. starshakes

D. cupshakes

3633. The stretcher bond in brick masonry can be used only when the thickness of wall is_____________?
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A. 190 mm

B. 180 mm

C. 90 mm

D. 280 mm

3634. The proportions of lime and sand in the mortar normally used in brick construction are_______________?
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A. 1:2

B. 1:06

C. 1:04

D. 1:08

3635. The triangular space formed between the extrados and the horizontal line drawn through the crown of an arch is known as_____________________?
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A. haunch

B. voussoirs

C. spandril

D. skewbacks

3636. The minimum depth of foundation in clayey soils is_______________?
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A. 1.2 m

B. 0.9 m

C. 0.7 m

D. 0.5 m

3637. Crushing strength of a first class brick should not be less than_____________?
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A. 7.0 N/mm2

B. 10.5 N/mm2

C. 14.0 N/mm2

D. 3.5 N/mm2

3638. Which of the following timbers is suitable for making sports goods ?
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A. mulberry

B. sal

C. mahogany

D. deodar

3639. The main constituent which imparts hydraulicity to hydraulic lime is______________?
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A. silica

B. calcium oxide

C. clay

D. water

3640. The type of arch generally constructed over a wooden lintel or over a flat arch for the purpose of carrying the load of the wall above is_______________?
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A. relieving arch

B. pointed arch

C. segmental arch

D. flat arch

3641. For testing compressive and tensile strength of cement, the cement mortar is made by mixing cement and standard sand in the proportions of___________________?
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A. 1:06

B. 1:02

C. 1:04

D. 1:3
3642. Granite is not suitable for ordinary building purpose because_______________?
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A. it can not be polished

B. it is not a fire proof material

C. it is costly

D. it has less crushing strength

3643. Assertion A : Pure lime takes a long time to develop adequate strength. Reason R : Pure lime has slow hardening characteristics. Select your answer according to the coding system given below ?
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A. Both A and R are true and R is correct explanation of A

B. Both A and R are true and R is not a correct explanation of A

C. A is true but R is false

D. A is false but R is true

3644. Plywood is made by bonding together thin layers of wood in such a way that the angle between grains of any layer to grains of adjacent layers is_________________?
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A. 0

B. 45

C. 90

D. 30

3645. Quick lime is_______________?
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A. calcium carbonate

B. none of the above

C. calcium oxide

D. calcium hydroxide

3646. Which of the following cements contains maximum percentage of dicalcium silicate?
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A. ordinary Portland cement

B. sulphate resisting cement

C. rapid hardening cement

D. low heat cement
3647. The important test to be conducted on a stone used in docks and harbors is________________?
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A. work ability test

B. toughness test

C. weight test

D. hardness test

3648. The disease of dry rot in timber is caused by_____________?
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A. lack of ventilation

B. none of the above

C. alternate wet and dry conditions

D. complete submergence in water

3649. The initial setting time for ordinary Portland cement as per IS specifications should not be less than_____________?
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A. 600 minutes

B. 30 minutes

C. 10 minutes

D. 60 minutes

3650. The plywood______________?
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A. has greater impact resistance to blows than ordinary wood

B. can be spilt in the plane of the panel

C. has good strength along the panel only

D. cannot be bent more easily than ordinary wood of same thickness