Heat Engines MCQs | Page - 49

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 • 52.77K Points
Coach

Q. Which of the following exists as highest pressure in a diesel engine

(A) Exhaust gases in silencer
(B) Lubricating oil
(C) Fuel at the time of injection
(D) Air at the end of compression stroke
View Answer Discuss Share

M

Mr. Dubey • 52.77K Points
Coach

Q. A camshaft is not provided in case of

(A) Two stroke engines
(B) High speed engines
(C) Multicylinder engines
(D) ir cooled engines
View Answer Discuss Share

M

Mr. Dubey • 52.77K Points
Coach

Q. The compression ratio in case of a gas turbine is of the order of

(A) 7
(B) 12
(C) 20
(D) 5
View Answer Discuss Share

M

Mr. Dubey • 52.77K Points
Coach

Q. Corona is generally accompanied by a faint glow and

(A) Spark
(B) Sparking
(C) Heating of conductors
(D) Hissing noise
View Answer Discuss Share

M

Mr. Dubey • 52.77K Points
Coach

Q. If after some use the lower part, electrodes and beathing space of a spark plug are found coated by deposits of soot and carbon, the conclusion will be

(A) Spark plug is of proper heat rating
(B) Spark advance is incorrect
(C) Spark plug is short circuited
(D) Spark plug is of too high heat rating
View Answer Discuss Share

M

Mr. Dubey • 52.77K Points
Coach

Q. As the compression ratio increases the volumetric efficiency of air compressor

(A) Increases
(B) Decreases
(C) Does not change
(D) Unpredictable
View Answer Discuss Share

M

Mr. Dubey • 52.77K Points
Coach

Q. A fan is being used under certain conditions. If the fan speed is doubled the power requirement will be

(A) 8 times
(B) 16 times
(C) Unchanged
(D) Double of the original
View Answer Discuss Share

M

Mr. Dubey • 52.77K Points
Coach

Q. A jet engine has

(A) Propeller on top
(B) No propeller
(C) Propeller in back
(D) Two propellers
View Answer Discuss Share

M

Mr. Dubey • 52.77K Points
Coach

Q. In jet engines the compression ratio

(A) Varies with altitude
(B) Varies with square of speed
(C) Varies as cube of speed
(D) Remains constant
View Answer Discuss Share

M

Mr. Dubey • 52.77K Points
Coach

Q. Steam trap is a device that

(A) Allows passage of water but prevents the passage of steam
(B) Allows passage of air but prevents passage of steam
(C) Allows passage of the flue gases but prevents flow of steam
(D) None of the above
View Answer Discuss Share

Jump to

Download our easy to use, user friendly Android App from Play Store. And learn MCQs with one click.

Image