Construction Materials Online Test – Paper 2

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Created by

Vikash chaudhary

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Total Questions: 30
Time Allotted: 30 minutes
Passing Score: 50%
Randomization: Yes
Certificate: No
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1 / 30

1. Terracotta is used in building for

a) ornamental work

b) insulation

c) storage

d) none of the above

2 / 30

2. *The pigment in paints gives

a) smoothness

b) durability

c) glossy face

d) color

3 / 30

3. Gypsum is added to cement for reducing the fast reacting property of

a) dicalcium silicate

b) tricalcium silicate

c) tricalcium aluminate

d) tetra calcium alumino ferrite

4 / 30

4. Normally, the wood used for scaffolding is

a) mango

b) bamboo

c) shisham

d) sal

5 / 30

5. An artificial stone made from pieces of marble and cement and used for floor facing of walls, etc., is known as

a) mosaic

b) terrazzo

c) marble

d) none of the above

6 / 30

6. *Strike is used to remove the

a) crowded people

b) stop the work

c) surplus clay of the mould

d) all of the above

7 / 30

7. The argillaceous rocks have their principal constituents as

a) lime

b) clay

c) sand

d) none of the above

8 / 30

8. The crushing strength of 1st class brick should not be less than

a) 25 kg/cm^2

b) 70 kg/cm^2

c) 105 kg/cm^2

d) 140 kg/cm^2

9 / 30

9. Slate and marble stone belong to

a) igneous rocks

b) metamorphic rock

c) sedimentary rock

d) foliated rocks

10 / 30

10. The process of mixing sand with the powdered natural soil to improve the quality is known as

a) moulding

b) tempering

c) pugging

d) blending

11 / 30

11. Knots in timber are

a) speckled strains

b) signs of branches cut off

c) defects caused by crushing fibers

d) splits radiating from the center

12 / 30

12. *The maximum percentage of .......... is available in cement.

a) silica

b) lime

c) alumina

d) iron oxide

13 / 30

13. The building stone can be dressed very easily

a) just after quarrying

b) after seasoning

c) after some months of quarrying

d) any time

14 / 30

14. *The ingredient which gives the desired color to a paint is called

a) base

b) pigment

c) vehicle

d) solvent

15 / 30

15. *The stone that exhibits the highest compressive strength is

a) slate

b) gneiss

c) limestone

d) granite

16 / 30

16. German silver is an alloy of

a) zinc, lead, and nickel

b) copper, lead, and nickel

c) copper, zinc, and nickel

d) copper, lead, and zinc

17 / 30

17. *The cement becomes useless if its absorbed moisture content exceeds?

a) 5%

b) 4%

c) 3%

d) 2%

18 / 30

18. Which one of the following does not belong to exogenous trees?

a) coconut

b) teak

c) shisham

d) sal

19 / 30

19. The radiator of vehicles is painted with

a) asbestos paint

b) plastic paint

c) oil paint

d) bronze paint

20 / 30

20. A mortar prepared by mixing wood powder or sawdust to the cement or lime mortar is known as

a) wood mortar

b) cinder mortar

c) gauged mortar

d) light-weight mortar

21 / 30

21. The vehicle used in the case of enamel paints is

a) varnish

b) linseed oil

c) water

d) all of the above

22 / 30

22. Marble contains only

a) lime

b) silica

c) lime and silica

d) none of the above

23 / 30

23. *Oil varnish generally consists of

a) resin, oil, and turpentine

b) oil, wax, and resin

c) synthetic resin and spirit

d) spirit, oil, and wax

24 / 30

24. The constituents of cement, which act as a binder are

a) dicalcium silicate and tricalcium silicate

b) tricalcium aluminate, tricalcium silicate, and carbon

c) silica and carbon

d) none of the above

25 / 30

25. The amount of insoluble residue & residual retained (OPC) on IS90 sieve

a) 1.5% & 10%

b) 4% & 10%

c) 10% & 1.5%

d) 1.5% & 4%

26 / 30

26. The impurity not desirable in the soil used for brick formation is

a) alkali

b) kankar

c) both (a) and (b) of above

d) none of the above

27 / 30

27. *Normally the bricks (1st class) obtained from pazawah is about

a) 30%

b) 40%

c) 50%

d) 60%

28 / 30

28. The nominal size of modular brick is

a) greater than actual brick

b) none of the above

c) less than actual brick

d) equal to actual brick

29 / 30

29. Kaolin (china clay) is a

a) calcareous rocks

b) argillaceous rocks

c) siliceous rocks

d) sandy rocks

30 / 30

30. *The stone that exhibits more fire-resisting characteristics is

a) granite

b) marble

c) limestone

d) compact sandstone

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