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. Which one of the following does not show good cleavage?

a) calcite

b) mica

c) feldspar

d) silica

2 / 30

2. *Workability of concrete is increased due to an excess of

a) cement

b) water

c) round aggregate

d) all of the above

3 / 30

3. *Turpentine oil is used in paints as a

a) base

b) thinner

c) drier

d) vehicle

4 / 30

4. *According to IS399-1963, the weight of the timber is specified at

a) 8% moisture

b) 10% moisture

c) 12% moisture

d) 14% moisture

5 / 30

5. *Tampering of soil for the manufacture of bricks is done by

a) feet

b) pug mill

c) feet of cattle

d) all of the above

6 / 30

6. *The process of adding water to lime to convert it into hydrated lime is known as

a) hydration

b) slaking

c) calcination

d) watering

7 / 30

7. Material generally not used as an extender in paints is

a) powdered silica

b) gypsums

c) talc

d) zinc white

8 / 30

8. *The painting work is generally specified by

a) weight of the paint applied

b) labor used in the painting

c) area of the painted surface

d) all of the above

9 / 30

9. *Lime is obtained from

a) lime stone

b) sand stone

c) trap

d) silica

10 / 30

10. The ordinary cement used in general construction is:

a) rapid hardening cement

b) Portland cement

c) high alumina cement

d) pozzolanic cement

11 / 30

11. Which one is correct?

a) quick lime slow in setting

b) quick lime rapid in slaking

c) quick lime generates heat on water addition

d) all of the above

12 / 30

12. *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

13 / 30

13. *Swelling of bricks is known as

a) bloating

b) lamination

c) chuffs

d) efflorescence

14 / 30

14. *The lime suitable for use underwater is

a) fat lime

b) poor lime

c) hydraulic lime

d) all of the above

15 / 30

15. Advantage of clamp burning as compared to kiln burning is

a) less initial cost

b) takes less time

c) when a large number of bricks are required

d) none of the above

16 / 30

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

a) the height

b) the diameter

c) annual rings

d) piths

17 / 30

17. The constituent responsible for the strength in granite is

a) mica

b) felspar

c) quartz

d) all of the above

18 / 30

18. Basalt can be classified as

a) sedimentary rock

b) metamorphic rock

c) intrusive igneous

d) extrusive igneous

19 / 30

19. The initial setting of cement is caused by the formation of

a) dicalcium silicate

b) tricalcium silicate

c) tricalcium aluminate

d) tetracalcium aluminate

20 / 30

20. Excess of alumina in a brick earth causes

a) loss of cohesion

b) impermeable

c) cracking and warping on drying

d) brittleness

21 / 30

21. *Stainless steel metal is an alloy of

a) copper and zinc

b) copper and tin

c) copper and nickel

d) nickel and chromium

22 / 30

22. The maximum percentage of clay content for making good tiles is about

a) 20%

b) 30%

c) 40%

d) 50%

23 / 30

23. *Seasoning of timber

a) makes the timber light, strong, and stable

b) prevents warping, cracking, and shrinkage in timber

c) makes timber resistant to decay by fungi, termites, etc., and also resistant to electricity

d) all of the above

24 / 30

24. *The over ground continuous kiln is

a) bull's trench kiln

b) hoffman's kiln

c) tunnel kiln

d) all of the above

25 / 30

25. *Cement is said to be of good if

a) its color is gray

b) one feels cool by thrusting one's hand in the cement bag

c) it is smooth when rubbed in between fingers

d) all of the above

26 / 30

26. Fire bricks are used

a) to reflect heat

b) to increase heat flow

c) to decrease heat flow

d) all of the above

27 / 30

27. Tripoli is a type of

a) igneous rock

b) sedimentary rock

c) metamorphic rock

d) none of the above

28 / 30

28. The timber used for decorative woodwork

a) shisham

b) siris wood

c) rosewood

d) all of the above

29 / 30

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

a) granite

b) marble

c) limestone

d) compact sandstone

30 / 30

30. *In brick laying the tool used for lifting and spreading mortar and for forming joints is

a) scutch

b) trowel

c) square

d) bolster

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Construction Materials Online Test – Paper 2

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