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MCQs

Total Questions : 1424 | Page 138 of 143 pages
Question 1371. Cross cut saw is used for
  1.    Cutting soft stones
  2.    Cutting hard stones
  3.    Cutting large blocks of stones
  4.    Dressing stones
 Discuss Question
Answer: Option B. -> Cutting hard stones
Question 1372. The stones obtained by blasting are used as
  1.    Road metal
  2.    All listed here
  3.    Aggregates for concrete
  4.    Ballast in railways
 Discuss Question
Answer: Option B. -> All listed here
Question 1373. Wrought iron contains carbon upto
  1.    0.25 %
  2.    1.0 %
  3.    1.5 %
  4.    2.0 %
 Discuss Question
Answer: Option A. -> 0.25 %
Question 1374. Which of the following sedimentary rocks changes into quartzite by metamorphic action?
  1.    Sand stone
  2.    Lime stone
  3.    Shale
  4.    Gypsum
 Discuss Question
Answer: Option A. -> Sand stone
Question 1375. For the manufacture of Portland cement, the proportions of raw materials used, are
  1.    Silica 70% ; lime 20% ; other ingredients 10%
  2.    Silica 40% ; lime 40% ; other ingredients 20%
  3.    Lime 63% ; silica 22% ; other ingredients 15%
  4.    Lime 22% ; silica 63% ; other ingredients 15%
 Discuss Question
Answer: Option C. -> Lime 63% ; silica 22% ; other ingredients 15%
Question 1376. Bitumen completely dissolves in
  1.    All of these
  2.    Carbon bisulphide
  3.    Coal tar
  4.    Chloroform
 Discuss Question
Answer: Option A. -> All of these
Question 1377. Non acid-resistant asbestos is:
  1.    Tremolite asbestos
  2.    Chrysotile asbestos
  3.    None of these
  4.    Amosite asbestos
 Discuss Question
Answer: Option B. -> Chrysotile asbestos
Question 1378. For melting one tonne of cast iron
  1.    One quintal coke is required
  2.    20 kg limestone is required
  3.    All listed here
  4.    700 m3 air is required
 Discuss Question
Answer: Option C. -> All listed here
Question 1379. Specific gravity for most of the building stones lies between
  1.    2.5 to 3.0
  2.    2.0 to 2.5
  3.    1.5 to 2.0
  4.    3.0 to 3.5
 Discuss Question
Answer: Option A. -> 2.5 to 3.0
Question 1380. Galvanising means covering iron with a thin coat of
  1.    Glaze
  2.    Zinc
  3.    Tin
  4.    Coal tar
 Discuss Question
Answer: Option B. -> Zinc

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