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MCQs

Total Questions : 206 | Page 21 of 21 pages
Question 201. According to Kelvin-Planck statement, it is impossible to construct a device operating on a cycle which transfers heat from ____
  1.    low pressure heat reservoir to high pressure reservoir
  2.    low temperature heat reservoir to high temperature reservoir
  3.    high pressure heat reservoir to low pressure reservoir
  4.    high temperature heat reservoir to low temperature reservoir
 Discuss Question
Answer: Option B. -> low temperature heat reservoir to high temperature reservoir
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 202. Pump transfers input mechanical energy of an engine, into ______
  1.    pressure energy of a fluid
  2.    kinetic energy of a fluid
  3.    both a. and b.
  4.    none of the above
 Discuss Question
Answer: Option C. -> both a. and b.
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 203. One ton of refrigeration is equal to ______
  1.    120 B Th U/hr
  2.    200 B Th U/hr
  3.    1200 B Th U/hr
  4.    12000 B Th U/hr
 Discuss Question
Answer: Option D. -> 12000 B Th U/hr
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 204. What is the function of a moderator?
  1.    Increases the speed of neutrons
  2.    Increases the speed of electrons
  3.    Reduces the speed of neutrons
  4.    Reduces the speed of electrons
 Discuss Question
Answer: Option C. -> Reduces the speed of neutrons
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 205. Which of the following protects penstock due to sudden variation of flow or velocity of water?
  1.    Anchors
  2.    Forebays
  3.    Trash rack
  4.    Surge tank
 Discuss Question
Answer: Option D. -> Surge tank
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 206. Thermal efficiency of S.I. engines is low, due to ____
  1.    low compression ratio
  2.    high compression ratio
 Discuss Question
Answer: Option A. -> low compression ratio
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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