Heat Engines MCQs | Page - 36

Dear candidates you will find MCQ questions of Heat Engines here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.

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Mr. Dubey • 97.86K Points
Coach

Q. If the performance of diesel engines of different sizes, cylinder dimensions and horse power ratings are to be compared, which of the following parameter can be used for such comparison?

  • (A) Air-fuel ratio
  • (B) Otto cycle is less efficient than Diesel cycle
  • (C) Otto cycle is more efficient than Diesel cycle
  • (D) Efficiency depends mainly on working substance
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M

Mr. Dubey • 97.86K Points
Coach

Q. For same heat input and same compression ratio

  • (A) Otto cycle and Diesel cycle are equally efficient
  • (B) 10 to 30 percent
  • (C) 75 to 95 percent
  • (D) 50 to 65 percent
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M

Mr. Dubey • 97.86K Points
Coach

Q. The volumetric efficiency of a well adjusted engine at full load may be

  • (A) 40 to 55 percent
  • (B) V-type
  • (C) Air cooled and reciprocating engines
  • (D) Horizontal
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M

Mr. Dubey • 97.86K Points
Coach

Q. In Ambassador car, the engine is

  • (A) Multi-cylinder type
  • (B) Removing hydrogen from a hydrocarbon
  • (C) Removing water from any matter
  • (D) Removing hydrides from any matter
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M

Mr. Dubey • 97.86K Points
Coach

Q. Dehydration means

  • (A) Removing hydrogen from a mixture
  • (B) Gauge pressure + 1.03 kg/cm2
  • (C) Gauge pressure-atmospheric pressure
  • (D) Gauge pressure + atmospheric pressure
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M

Mr. Dubey • 97.86K Points
Coach

Q. Samples of exhaust gases from following engines have been collected

  • (A) Diesel engine
  • (B) Black
  • (C) Yellowish
  • (D) Bluish
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M

Mr. Dubey • 97.86K Points
Coach

Q. Normally the colour of exhaust from a petrol engine is

  • (A) Reddish
  • (B) Travelling grate stoker
  • (C) U-flame pulverized fuel burner
  • (D) Underfeed stoker
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M

Mr. Dubey • 97.86K Points
Coach

Q. The boilers using lignite as fuel do not use

  • (A) Horizontal burner, pulverized fuel
  • (B) 40 to 55
  • (C) 20 to 25
  • (D) 15 to 20
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M

Mr. Dubey • 97.86K Points
Coach

Q. Cetane number of diesel generally used in India is in the range

  • (A) 55 to 65
  • (B) In the range 50 - 80 percent
  • (C) Below 50 percent
  • (D) Between 100% and 95%
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