Heat Engines MCQs | Page - 1

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.

Q. A gas used in gas engine trial was tested in a Boys Calorimeter. The pressure of gas supply was 7 cm of water column. If the barometric pressure is 760 mm of mercury, the absolute pressure of the gas would be

  • (A) 0.007 kg/sq-cm
  • (B) 0.14 kg/sq-cm
  • (C) 1.04 kg/sq-cm
  • (D) 1.14 kg/sq-cm
💬 Discuss
✅ Correct Answer: (C) 1.04 kg/sq-cm

Published by Mr. Dubey ⭐ 111.54K Points at 14-Jun-2020 11:59 am in Heat Engines

Q. A cross-head has

  • (A) Reciprocating motion
  • (B) Rotory motion
  • (C) Oscillating motion
  • (D) (A) and (B) only
💬 Discuss
✅ Correct Answer: (A) Reciprocating motion

Published by Mr. Dubey ⭐ 111.54K Points at 14-Jun-2020 11:59 am in Heat Engines

Q. An average percentage of Carbon and Hydrogen in Petrol may be roughly given as

  • (A) 70% C, 70% H2
  • (B) 15% C, 85% H2
  • (C) 50% C, 50% H2
  • (D) 85% C, 150% H2
💬 Discuss
✅ Correct Answer: (D) 85% C, 150% H2

Published by Mr. Dubey ⭐ 111.54K Points at 14-Jun-2020 11:59 am in Heat Engines

Q. The overload capacity of diesel engine is usually around

  • (A) 50%
  • (B) Carbon dioxide
  • (C) 1%
  • (D) 10%
💬 Discuss
✅ Correct Answer: (D) 10%

Published by Mr. Dubey ⭐ 111.54K Points at 14-Jun-2020 11:59 am in Heat Engines

Q. A gas turbine plant operates between 1 ata and 9 ata with minimum and maximum cycle temperature of 25?C and 1000?C. A two stage compressor is provided with perfect intercooling and work is equally divided between the two stages. The intermediate pressure will be

  • (A) 5.5 ata
  • (B) 3 ata
  • (C) 4 ata
  • (D) 7.5 ata
💬 Discuss
✅ Correct Answer: (B) 3 ata

Published by Mr. Dubey ⭐ 111.54K Points at 14-Jun-2020 11:59 am in Heat Engines

Q. In cse the exhaust silencer of a petrol engine is partly choked, it is likely to result in

  • (A) Increased compression ratio
  • (B) Increased fuel consumption
  • (C) Reduced fuel consumption
  • (D) Reduced compression ratio
💬 Discuss
✅ Correct Answer: (B) Increased fuel consumption

Published by Mr. Dubey ⭐ 111.54K Points at 14-Jun-2020 11:59 am in Heat Engines

Q. Which of the following engine uses two fuel simultaneously?

  • (A) Multi-fuel engine
  • (B) Duel fuel engine
  • (C) Wankle engine
  • (D) Free piston gas generator
💬 Discuss
✅ Correct Answer: (B) Duel fuel engine

Published by Mr. Dubey ⭐ 111.54K Points at 14-Jun-2020 11:59 am in Heat Engines

Q. Which of the following constituent of air has the least proportion?

  • (A) Carbon monoxide
  • (B) Xenon
  • (C) Argon
  • (D) Helium
💬 Discuss
✅ Correct Answer: (B) Xenon

Published by Mr. Dubey ⭐ 111.54K Points at 14-Jun-2020 11:59 am in Heat Engines

Q. Which of the following is a false statement. A multicylinder diesel engine is missing on one or more cylinders. The cause may be

  • (A) Valve sticky
  • (B) Insufficient fuel supply to cylinders
  • (C) Compression poor
  • (D) Air cleaner plugged
💬 Discuss
✅ Correct Answer: (D) Air cleaner plugged

Published by Mr. Dubey ⭐ 111.54K Points at 14-Jun-2020 11:59 am in Heat Engines

Q. If a steam injector lifts the water but fails to force it into the boiler, the trouble may not be due to

  • (A) Combining tube clogged
  • (B) Insufficient steam pressure
  • (C) Sry steam
  • (D) Leake in water pipe
💬 Discuss
✅ Correct Answer: (C) Sry steam

Published by Mr. Dubey ⭐ 111.54K Points at 14-Jun-2020 11:59 am in Heat Engines

Jump to

Explore More Categories

Click on category to learn MCQs of that category.

📱 Download Our App

Learn MCQs on the go with our easy-to-use Android app

Get it on Google Play