Heat Engines MCQs | Page - 25

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.

M

Mr. Dubey • 97.86K Points
Coach

Q. In compression ignition engines swirl is

  • (A) Circular motion imparted to gases after combustion
  • (B) Circular motion imparted to suction air
  • (C) Radial motion imparted to fuel air mixture
  • (D) Directional movement of fuel spray
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M

Mr. Dubey • 97.86K Points
Coach

Q. Which of the following acts as a step up transformer in the ignition circuit of a petrol engine?

  • (A) Battery
  • (B) Coil
  • (C) Plug
  • (D) Distributor
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M

Mr. Dubey • 97.86K Points
Coach

Q. Tidal power is the power generated from

  • (A) Raw sea water
  • (B) Waves of the ocean
  • (C) Rise and fall tides
  • (D) Thermal energy of ocean water
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M

Mr. Dubey • 97.86K Points
Coach

Q. Percentage improvement in power in case of a four stroke diesel engine with the help of a supercharger may be expected in the range

  • (A) 25
  • (B) 35
  • (C) 75
  • (D) 50
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M

Mr. Dubey • 97.86K Points
Coach

Q. Thermal efficiency of a spark ignition engine at full load usually is in the range

  • (A) 30 to 35 percent
  • (B) 50 to 70 percent
  • (C) 70 to 90 percent
  • (D) 10 to 25 percent
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M

Mr. Dubey • 97.86K Points
Coach

Q. A Lungistrom turbine is

  • (A) Impulse turbine
  • (B) Reaction turbine
  • (C) Outward radial flow turbine
  • (D) Inward flow impulse reaction turbine
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M

Mr. Dubey • 97.86K Points
Coach

Q. Diesel engine has air fuel ratio of 30 ; 1 during idling. A petrol engine can also work on such mixture provided

  • (A) Ignition timing is changed
  • (B) Carburettor is modified
  • (C) Dannot run as it is impossible
  • (D) Runs smoothly at lower speeds only
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M

Mr. Dubey • 97.86K Points
Coach

Q. Which of the boiler provides superheated steam?

  • (A) Locomotive boiler
  • (B) Lancashire boiler
  • (C) Cornish boiler
  • (D) All of the above
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M

Mr. Dubey • 97.86K Points
Coach

Q. Dew point temperature is an indication of

  • (A) Condition of air
  • (B) Condition of moisture in air
  • (C) Dryness of air
  • (D) Lowest temperature where air and water vapour start separating
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