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MCQs

Total Questions : 5013 | Page 4 of 502 pages
Question 31. The bolt is subjected to __________ when the nut is tightened by putting the washer beneath it.
  1.    Tension
  2.    Shear
  3.    Compression
  4.    Bending & tension
 Discuss Question
Answer: Option A. -> Tension
Question 32. Carbide tipped cutting tools are manufactured by powder metallurgy techniques and have a composition of
  1.    90% tungsten carbide and 10% cobalt
  2.    70% aluminium oxide & 30% silica
  3.    30% nickel, 15% chromium & 55% tungsten
  4.    65% tungsten & 35% zirconium
 Discuss Question
Answer: Option A. -> 90% tungsten carbide and 10% cobalt
Question 33. Steam condenser tubes are made of ad-mirability brass, in which percentage of zinc & copper are __________ respectively.
  1.    70 & 30
  2.    30 & 70
  3.    50 & 50
  4.    90 & 10
 Discuss Question
Answer: Option A. -> 70 & 30
Question 34. CANDU type nuclear reactor using natural uranium as fuel is the extensively used nuclear reactor because of the fact that the
  1.    Specific fuel consumption is very low due to the use of heavy water
  2.    Fuel cost is much lower than that used in pressurised water or boiling water reactor
  3.    Heavy water is used both as coolant as well as moderator
  4.    Both B and C
 Discuss Question
Answer: Option D. -> Both B and C
Question 35. In order to protect the aquatic creatures, the dissolved oxygen content in fresh water stream should never be less than __________ PPm.
  1.    0.5
  2.    1
  3.    5
  4.    20
 Discuss Question
Answer: Option C. -> 5
Question 36. Batch process is preferred over continuous process, when the
  1.    Product yields and quality can not be achieved in continuous process, because of long residence time
  2.    Sales demand of product is not steady
  3.    Same equipment can not be used for several processes of the same nature
  4.    All of the above
 Discuss Question
Answer: Option B. -> Sales demand of product is not steady
Question 37. Transformer cores are normally made from
  1.    Soft ferrites
  2.    High purity iron
  3.    Grain oriented Fe-Si alloy
  4.    Al-Ni-Co alloy
 Discuss Question
Answer: Option C. -> Grain oriented Fe-Si alloy
Question 38. The co-ordination number in simple cubic structure is
  1.    4
  2.    6
  3.    8
  4.    12
 Discuss Question
Answer: Option B. -> 6
Question 39. L.D. (Linz-Donawitz) converter is used in the production of
  1.    Copper
  2.    Steel
  3.    Zinc
  4.    Aluminium
 Discuss Question
Answer: Option B. -> Steel
Question 40. The excess air required for the combustion of pulverised coal is of the order of about __________ percent.
  1.    5
  2.    15
  3.    30
  4.    45
 Discuss Question
Answer: Option B. -> 15

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