Construction Materials Online Test – Paper 2

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Vikash chaudhary

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

1. Sandstone contains mostly

a) quartz and lime

b) quartz, lime, and silica

c) silica, aluminium, and lime

d) igneous

2 / 30

2. *The pigment in paints gives

a) smoothness

b) durability

c) glossy face

d) color

3 / 30

3. The base in a paint has the following function

a) it forms the body of the paint

b) it reduces the shrinkage cracks

c) it reinforces the films of the paint after it has dried and prevents the penetration of paint to lower surfaces

d) all of the above

4 / 30

4. *Swelling of bricks is known as

a) bloating

b) lamination

c) chuffs

d) efflorescence

5 / 30

5. The maximum percentage of warping along the sides of tiles is

a) 2%

b) 5%

c) 8%

d) 1.10%

6 / 30

6. *The function of paint is

a) to give a clean, colorful, and pleasing surface

b) to increase the life of the painted surface

c) to protect the surface from corrosion and other weather effects

d) all of the above

7 / 30

7. Which one is correct?

a) normally concreting is done above 20┬░C

b) the optimum temperature for concreting is 27┬░┬▒2┬░

c) consistency test is done at a temperature of 25┬░C to 29┬░C

d) all of the above

8 / 30

8. *The most commonly used accelerator for concreting is

a) gypsum

b) calcium chloride

c) calcium oxide

d) calcium sulphate

9 / 30

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

a) base

b) pigment

c) vehicle

d) solvent

10 / 30

10. The paints with white lead base are suitable for the painting of

a) ironwork

b) woodwork

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

d) none of the above

11 / 30

11. *The main constituent, which is mainly responsible for hydraulicity is

a) water

b) clay

c) silica

d) carbon dioxide

12 / 30

12. The calcination of pure lime results in

a) quick lime

b) hydrated lime

c) slaked lime

d) fat lime

13 / 30

13. *The kiln which may work regularly throughout the year is called

a) clamp

b) bull's kiln

c) hoffman's kiln

d) none of the above

14 / 30

14. The pozzolana Portland cement gains strength

a) in the same time as ordinary Portland cement

b) in less time than ordinary Portland cement

c) in more time than ordinary Portland cement

d) difficult to tell

15 / 30

15. Suitable stone for a gravity retaining wall is

a) light

b) heavy

c) hard

d) soft

16 / 30

16. Bloating of bricks is due to

a) presence of excess carbonaceous matter and sulphur

b) presence of any gas forming material in clay

c) bad burning or rapid firing

d) all of the above

17 / 30

17. *The function of frog is

a) to form a key during laying

b) reduction in weight

c) advertisement of the manufacturer

d) all of the above

18 / 30

18. Which of the following is not a hardwood?

a) deodar

b) sal

c) teak

d) oak

19 / 30

19. The most commonly used retarder in cement is:

a) gypsum

b) calcium chloride

c) calcium carbonate

d) none of the above

20 / 30

20. The compressive strength of stone is found out by

a) attrition test

b) crushing test

c) hardness test

d) impact test

21 / 30

21. *Lime concrete is used in

a) foundation of columns

b) roof slabs

c) walls

d) under the floors

22 / 30

22. *Frog means

a) depression on top face of brick

b) special types of brick

c) projection of brick

d) all of the above

23 / 30

23. The types of bricks used for the lining of the furnace/combustion chamber are

a) refractory

b) machine made

c) handmade

d) 1st class

24 / 30

24. The type of cement is considered good if

a) it contains C3S in large amounts

b) it contains C2S in large amounts

c) it contains C3A in large amounts

d) all of the above

25 / 30

25. The volume of one bag of cement weighing 50 kg is

a) 0.05m^3

b) 0.0347m^3

c) 0.025m^3

d) 0.04m^3

26 / 30

26. In the briquette test, the seven-day tensile strength of good Portland cement should not be less than

a) 20 kg/cm^2

b) 30 kg/cm^2

c) 25 kg/cm^2

d) 35 kg/cm^2

27 / 30

27. The soil used for the manufacture of bricks should preferably not contain the following material

a) alkalies

b) pebbles

c) manganese

d) iron oxide

28 / 30

28. *The age of the tree can be judged from

a) the height

b) the diameter

c) annual rings

d) piths

29 / 30

29. The amount of local brick required for one m3 masonry (As per NS norms) is

a) 500

b) 530

c) 560

d) 600

30 / 30

30. The minimum hardness number for marble is about

a) 3

b) 8

c) 5

d) 10

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Construction Materials Online Test – Paper 2

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