Building Materials MCQ Questions & Answers | Civil Engineering Page-4 section-3

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31.
Forge pig may be converted to wrought iron by

A. Rolling

B. Pudding

C. Shingling

D. Refining

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32.
If the furnace is provided with insufficient fuel at low temperatures, the type of pig iron produced, is called

A. Bessemer pig

B. Grey or foundry pig

C. White or forge pig

D. Mottled pig

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33.
Which of the following should be used for hearting of thicker walls?

A. Headers

B. Stretchers

C. Brick bats

D. Queen closer

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34.
Seasoning of timber is done

A. To make it water proof

B. To paint its surface

C. To increase its temperature

D. To remove water

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35.
Pick up the correct statement from the following:

A. Acid test is done to find out the weathering quality of stones

B. Attrition test is done to find out the rate of wear of stones which are used in road construction

C. Crushing test is done to find out the compressive strength of the stone

D. All the above

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36.
Pick up the correct statement from the following:

A. Adding 5% to 6% of moisture content by weight, increases the volume of dry sand from 18% to 38%

B. The bulking of fine sand is more than that of coarse sand

C. If the percentage content of moisture exceeds 10%, increase in bulk of sand starts increasing

D. All the above

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37.
Pick up the correct statement from the following:

A. Air bubbles in casting produce a dull sound by tapping their surfaces lightly with a hammer

B. Cupola furnace is used for the manufacture of cast iron

C. Red short iron is of no value for welding purpose

D. All the above

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38.
Pick up the correct statement from the following:

A. Alexander Parkes, a Scottish chemist prepared a hard material by mixing camphor and alcohol with nitro cellulose and called it, as Parkesite

B. Dr. L. Bakeland, a Belgian scientist prepared a product known as Bakelite

C. Pollark, an Austrian scientist prepared a substance from urea and formaldehyde and called it Plastic

D. All the above

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39.
Pick up the constituent of good brick earth whose excess causes the raw bricks shrink and warp during drying and burning, from the following:

A. Alumina

B. Lime

C. Iron-oxide

D. Magnesia

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40.
Pick up the correct statement from the following:

A. Blistering may be cured by applying water paint finished with oil paint dried with a little copal varnish

B. Cracked paints may be cured by removing paint and giving a fresh coat of paint

C. Crawling paints may be cured by sand preparing the surface and giving a fresh coat with plenty of turps

D. All the above

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Building Materials MCQ Questions & Answers | Civil Engineering

31. Forge pig may be converted to wrought iron by

Answer & Solution

32. If the furnace is provided with insufficient fuel at low temperatures, the type of pig iron produced, is called

Answer & Solution

33. Which of the following should be used for hearting of thicker walls?

Answer & Solution

34. Seasoning of timber is done

Answer & Solution

35. Pick up the correct statement from the following:

Answer & Solution

36. Pick up the correct statement from the following:

Answer & Solution

37. Pick up the correct statement from the following:

Answer & Solution

38. Pick up the correct statement from the following:

Answer & Solution

39. Pick up the constituent of good brick earth whose excess causes the raw bricks shrink and warp during drying and burning, from the following:

Answer & Solution

40. Pick up the correct statement from the following:

Answer & Solution

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31.
Forge pig may be converted to wrought iron by

32.
If the furnace is provided with insufficient fuel at low temperatures, the type of pig iron produced, is called

33.
Which of the following should be used for hearting of thicker walls?

34.
Seasoning of timber is done

35.
Pick up the correct statement from the following:

36.
Pick up the correct statement from the following:

37.
Pick up the correct statement from the following:

38.
Pick up the correct statement from the following:

39.
Pick up the constituent of good brick earth whose excess causes the raw bricks shrink and warp during drying and burning, from the following:

40.
Pick up the correct statement from the following: