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MCQs

Total Questions : 1424 | Page 3 of 143 pages
Question 21. Forge pig may be converted to wrought iron by
  1.    Rolling
  2.    Pudding
  3.    Shingling
  4.    Refining
 Discuss Question
Answer: Option B. -> Pudding
Question 22. If the furnace is provided with insufficient fuel at low temperatures, the type of pig iron produced, is called
  1.    Bessemer pig
  2.    Grey or foundry pig
  3.    White or forge pig
  4.    Mottled pig
 Discuss Question
Answer: Option C. -> White or forge pig
Question 23. Which of the following should be used for hearting of thicker walls?
  1.    Headers
  2.    Stretchers
  3.    Brick bats
  4.    Queen closer
 Discuss Question
Answer: Option A. -> Headers
Question 24. Pick up the correct statement from the following:
  1.    Acid test is done to find out the weathering quality of stones
  2.    Attrition test is done to find out the rate of wear of stones which are used in road construction
  3.    Crushing test is done to find out the compressive strength of the stone
  4.    All the above
 Discuss Question
Answer: Option D. -> All the above
Question 25. Seasoning of timber is done
  1.    To make it water proof
  2.    To paint its surface
  3.    To increase its temperature
  4.    To remove water
 Discuss Question
Answer: Option D. -> To remove water
Question 26. Pick up the correct statement from the following:
  1.    Adding 5% to 6% of moisture content by weight, increases the volume of dry sand from 18% to 38%
  2.    The bulking of fine sand is more than that of coarse sand
  3.    If the percentage content of moisture exceeds 10%, increase in bulk of sand starts increasing
  4.    All the above
 Discuss Question
Answer: Option D. -> All the above
Question 27. Pick up the correct statement from the following:
  1.    Alexander Parkes, a Scottish chemist prepared a hard material by mixing camphor and alcohol with nitro cellulose and called it, as Parkesite
  2.    Dr. L. Bakeland, a Belgian scientist prepared a product known as Bakelite
  3.    Pollark, an Austrian scientist prepared a substance from urea and formaldehyde and called it Plastic
  4.    All the above
 Discuss Question
Answer: Option D. -> All the above
Question 28. Pick up the correct statement from the following:
  1.    Air bubbles in casting produce a dull sound by tapping their surfaces lightly with a hammer
  2.    Cupola furnace is used for the manufacture of cast iron
  3.    Red short iron is of no value for welding purpose
  4.    All the above
 Discuss Question
Answer: Option D. -> All the above
Question 29. Pick up the correct statement from the following:
  1.    Blistering may be cured by applying water paint finished with oil paint dried with a little copal varnish
  2.    Cracked paints may be cured by removing paint and giving a fresh coat of paint
  3.    Crawling paints may be cured by sand preparing the surface and giving a fresh coat with plenty of turps
  4.    All the above
 Discuss Question
Answer: Option D. -> All the above
Question 30. Pick up the constituent of good brick earth whose excess causes the raw bricks shrink and warp during drying and burning, from the following:
  1.    Alumina
  2.    Lime
  3.    Iron-oxide
  4.    Magnesia
 Discuss Question
Answer: Option A. -> Alumina

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