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. Common sand is a variety of

a) calcite

b) quartz

c) felspar

d) chlorite

2 / 30

2. Granite contains primarily

a) quartz

b) quartz and felspar

c) mica

d) quartz and mica

3 / 30

3. *PVC stands for

a) plastic very compact

b) polythene vinyl carbon

c) pigment volume concentration

d) polythene vinyl chloride

4 / 30

4. Mica, mainly, is composed of

a) calcium carbonate

b) magnesium and calcium silicate

c) silica with oxygen

d) potassium and aluminium silicate

5 / 30

5. 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

6 / 30

6. Distemper is generally used in:

a) walls

b) wood

c) steel

d) none of the above

7 / 30

7. Stone generally used for railway ballast is

a) sandstone

b) dolomite

c) marble

d) basalt or trap, granite

8 / 30

8. The initial and final setting times of quick setting cement are

a) 15 minutes and 45 minutes

b) 20 minutes and one hour

c) 5 minutes and 30 minutes

d) 5 minutes and 10 minutes

9 / 30

9. *Flash setting of cement means

a) hydration of cement

b) hardening of cement

c) stiffening of cement without strength development

d) all of the above

10 / 30

10. Tripoli is a type of

a) igneous rock

b) sedimentary rock

c) metamorphic rock

d) none of the above

11 / 30

11. The fineness of cement is tested by:

a) air permeability method

b) le-chatlier method

c) vicat's apparatus

d) all of the above

12 / 30

12. Based on its dry weight, a freshly felled tree may contain water

a) 25%

b) 50%

c) 75%

d) 100%

13 / 30

13. Most weather-resisting metamorphic rock is

a) lime stone

b) slate

c) marble

d) quartzite

14 / 30

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

a) 8% moisture

b) 10% moisture

c) 12% moisture

d) 14% moisture

15 / 30

15. The solidification of molten magma within the earth's crust results in the formation of

a) sedimentary rocks

b) metamorphic rocks

c) basalts and traps

d) granite and pegmatite

16 / 30

16. *In one day, the height of brick masonry construction should generally not exceed

a) 1m

b) 1.5m

c) 2.5m

d) 3m

17 / 30

17. *Finely powdered burnt clay is called:

a) fly ash

b) surkhi

c) bricquette

d) moraine

18 / 30

18. Pegmatite is an example of

a) sedimentary rock

b) extrusive igneous rock

c) intrusive igneous rock

d) igneous rock

19 / 30

19. The explosive not used for blasting the rocks underwater is

a) gun powder

b) gun cotton

c) dynamite

d) cordite

20 / 30

20. Identify the geological classification of rocks

a) calcareous, argillaceous, and silicious

b) organic, semi-organic, and inorganic

c) igneous, sedimentary, and metamorphic

d) stratified, unstratified, and foliated

21 / 30

21. Bull nose bricks are not used in

a) walls

b) rounding off sharp corners

c) arches

d) pillars

22 / 30

22. The temperature at which bricks are burnt varies from (low melting clay)

a) 400┬░ to 700┬░C

b) 700┬░ to 1000┬░ C

c) 1000┬░ to 1200┬░C

d) 1200┬░ to 1500┬░ C

23 / 30

23. During compressive strength load is applied at the rate of

a) 10 N/mm^2/Min

b) 12 N/mm^2/Min

c) 14 N/mm^2/Min

d) 16 N/mm^2/Min

24 / 30

24. The constituent responsible for setting of hydraulic lime underwater is

a) silica

b) clay

c) calcium oxide

d) carbon dioxide

25 / 30

25. The advantage of adding pozzolana to lime is

a) to impart greater strength

b) all of the above

c) to reduce shrinkage

d) to increase resistance to cracking

26 / 30

26. 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

27 / 30

27. *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

28 / 30

28. *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

29 / 30

29. *The best primer used for structural steel work is

a) zinc oxide

b) red lead

c) white lead

d) iron oxide

30 / 30

30. The seven-day compressive strength of good Portland cement, as obtained from the compressive test on cement-sand mortar cubes, should not be less than

a) 125 kg/cm^2

b) 150 kg/cm^2

c) 175 kg/cm^2

d) 200 kg/cm^2

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Construction Materials Online Test – Paper 2

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