Q. Which of the following chemical acts as anti-freeze?
✅ Correct Answer: (B)
Glycol
Heat Engines MCQs | Page - 48
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 low pressure accumulator is generally used with which of the following turbine
✅ Correct Answer: (A)
Mixed pressure turbine
Q. Which is not the cause for loss of heat in boiler due to incomplete combustion?
✅ Correct Answer: (D)
Boiler drum uninsulated
Q. Temporary hardness of water is caused by
✅ Correct Answer: (A)
Bicarbonates of calcium and magnesium
Q. Crankcase explosion occurs in
✅ Correct Answer: (D)
Two stroke SI engines
Q. Which of the following offers best resistance to knocking in S.I. engines?
✅ Correct Answer: (A)
Aromatics
Q. Which of the following engine can work on very lean mixture?
✅ Correct Answer: (B)
Diesel engine
Q. Overall thermal efficiency of a thermal power plant is
✅ Correct Answer: (C)
Product of boiler efficiency, turbine efficiency and generator efficiency
Q. In gas and petrol engines thermal efficiency may be expected in the range
✅ Correct Answer: (B)
30 to 35 percent
Jump to