Building Materials MCQ Questions & Answers | Civil Engineering Page-5 section-3

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41.
Pick up the correct statement from the following:

A. Blisters in the finished wrought iron, are caused due to the reaction between oxide of iron and carbon

B. The edges of a finished wrought iron are rough due to red shortage

C. Pig iron (charcoal) is manufactured from magnetic ore (Fe₃O₄)

D. All the above

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42.
Pick up the correct statement from the following:

A. Bull's trench kiln a trench excavated in ground

B. Hoffman's kiln is constructed over ground

C. Tunnel Kiln is constructed as a tunnel

D. All the above

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43.
Pick up the correct statement from the following:

A. Catalysts are added to assist and accelerate the hardening of resin

B. The fillers are inert materials and they impart strength and hardness

C. Fibrous fillers increase thermal resistance

D. All the above

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44.
Pick up the correct statement from the following:

A. Corrugated sheet iron is made by passing plain sheets between grooved rollers

B. Strength and stiffness of corrugated sheets are considerably increased

C. Corrugated sheets are generally used on slanting roofs

D. All the above

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45.
Pick up correct statement from the following:

A. Fibre boards are used for thermal and acoustic control

B. Fibre boards are used for light weight standing members

C. Fibre boards are obtained by impregnating a resin product on fibres

D. All the above

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46.
Pick up the correct statement from the following:

A. For thin structures subjected to wetting and drying, the water cement ratio should be 0.45

B. For mass concrete structures subjected to wetting and drying, the water ratio should be 0.55

C. For thin structures which remain continuously under water, the water-cement ratio by weight should be 0.55

D. All the above

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47.
Pick up the volcanic rock from the following:

A. Granite

B. Dolerite

C. Basalt

D. All the above

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48.
Pick up the hypabyssal rock from the following:

A. Granite

B. Dolerite

C. Basalt

D. All the above

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49.
Pick up the correct statement from the following:

A. Hornblende mineral is brittle

B. Muscovite is also known as white mica and potash mica

C. Biotite is also known as black-mica

D. All the above

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50.
Pick up the incorrect statement from the following:

A. Hydraulic lime is generally obtained by burning kankar

B. Hydraulic lime sets slowly as compared to fat lime

C. Hydraulic lime is generally used in lime mortar

D. None of these

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Building Materials MCQ Questions & Answers | Civil Engineering

41. Pick up the correct statement from the following:

Answer & Solution

42. Pick up the correct statement from the following:

Answer & Solution

43. Pick up the correct statement from the following:

Answer & Solution

44. Pick up the correct statement from the following:

Answer & Solution

45. Pick up correct statement from the following:

Answer & Solution

46. Pick up the correct statement from the following:

Answer & Solution

47. Pick up the volcanic rock from the following:

Answer & Solution

48. Pick up the hypabyssal rock from the following:

Answer & Solution

49. Pick up the correct statement from the following:

Answer & Solution

50. Pick up the incorrect statement from the following:

Answer & Solution

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41.
Pick up the correct statement from the following:

42.
Pick up the correct statement from the following:

43.
Pick up the correct statement from the following:

44.
Pick up the correct statement from the following:

45.
Pick up correct statement from the following:

46.
Pick up the correct statement from the following:

47.
Pick up the volcanic rock from the following:

48.
Pick up the hypabyssal rock from the following:

49.
Pick up the correct statement from the following:

50.
Pick up the incorrect statement from the following: