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MCQs

Total Questions : 1124 | Page 54 of 113 pages
Question 531. The pressure at the end of compression in the case of diesel engine is of the order of
  1.    35 kg/cm
  2.    12 kg/cm
  3.    20 kg/cm
  4.    6 kg/cm
 Discuss Question
Answer: Option A. -> 35 kg/cm
Question 532. Morse test can be conducted for
  1.    All of the listed here
  2.    Multi cylinder engines
  3.    Diesel engines
  4.    Petrol engines
 Discuss Question
Answer: Option B. -> Multi cylinder engines
Question 533. Engine pistons are usually made of aluminium alloy because it
  1.    Is lighter
  2.    Wear is less
  3.    Is stronger
  4.    Absorbs shocks
 Discuss Question
Answer: Option A. -> Is lighter
Question 534. The scavenging efficiency of a four stroke cycle diesel engine is
  1.    Between 50 and 85%
  2.    Below 50%
  3.    Between 95 and 100%
  4.    Between 85 and 95%
 Discuss Question
Answer: Option C. -> Between 95 and 100%
Question 535. Which of the following medium is compressed in a Diesel engine cylinder?
  1.    Air and lub oil
  2.    Air alone
  3.    Fuel alone
  4.    Air and fuel
 Discuss Question
Answer: Option B. -> Air alone
Question 536. Alpha-methyl-naphthalene (C₁₁ H₁₀) has a cetane number of
  1.    120
  2.    100
  3.    50
  4.    0
 Discuss Question
Answer: Option D. -> 0
Question 537. Number of working strokes per min. for a two stroke cycle engine is ____ the speed of the engine in r.p.m.
  1.    Four-times
  2.    Equal to
  3.    One-half
  4.    Twice
 Discuss Question
Answer: Option B. -> Equal to
Question 538. The thermodynamic cycle on which the petrol engine works, is
  1.    Rankine cycle
  2.    Otto cycle
  3.    Stirling cycle
  4.    Joule cycle
 Discuss Question
Answer: Option B. -> Otto cycle
Question 539. Which of the following does not relate to a compression ignition engine?
  1.    Fuel injector
  2.    Fuel pump
  3.    Carburettor
  4.    Governor
 Discuss Question
Answer: Option C. -> Carburettor
Question 540. The size of inlet valve of an engine in comparison to exhaust valve is
  1.    More/less depending on capacity of engine
  2.    Less
  3.    More
  4.    Same
 Discuss Question
Answer: Option C. -> More

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