Heat Engines MCQs | Page - 3

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 • 52.52K Points
Coach

Q. A coal contains 3.5% sulphur by weight, as fired, and all the sulphur may be assumed to go to formation of sulphur dioxide. How many tonnes of SO2 are produced per day of the firing rate is 35 tonnes per hour

(A) 54.8
(B) 60.8
(C) 48.8
(D) 58.8
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M

Mr. Dubey • 52.52K Points
Coach

Q. The total length of 40 mid-ordinates on a simple steam engine indicator diagram is 17 cm. The pressure scale is 0.6 kg/sq-cm. The mean effective pressure would be

(A) 1.0 kg/sq-cm
(B) 1.7 kg/sq-cm
(C) 1.0 kg/sq-cm
(D) 10.2 kg/sq-cm
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M

Mr. Dubey • 52.52K Points
Coach

Q. Free air is air at

(A) 1 kg/cm2 and 20?C
(B) 1 kg/cm2 and atmospheric temperature
(C) 1 kg/cm2 and 27?C
(D) Atmospheric conditions at any specific location
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M

Mr. Dubey • 52.52K Points
Coach

Q. De-Laval turbine is mostly used

(A) For small powers at high speeds
(B) For small powers at low speeds
(C) For high powers at low speeds
(D) For high powers at high speeds
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M

Mr. Dubey • 52.52K Points
Coach

Q. Air fuel ratio for a jet engine is of the order of

(A) 15 ; 1
(B) 20 ; 1
(C) 60 ; 1
(D) 400 ; 1
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M

Mr. Dubey • 52.52K Points
Coach

Q. Calorific value of methane gas can be determined by

(A) Bomb calorimeter
(B) Bunsen's apparatus
(C) Orsat's apparatus
(D) None of the above
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M

Mr. Dubey • 52.52K Points
Coach

Q. Which one of the following factors will not assist in improving thermal efficiency of a compression ignition engine?

(A) Fine atomisation and even distribution of fuel
(B) Minimum heat loss during combustion
(C) Clear exhaust
(D) High surface to volume ratio
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M

Mr. Dubey • 52.52K Points
Coach

Q. A diesel power plant is best suited as

(A) Base load plant
(B) Stand by plant
(C) Peak load plant
(D) General purpose plant
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M

Mr. Dubey • 52.52K Points
Coach

Q. Excessive moisture in steam in a steam turbine is likely to result in

(A) Erosion of turbine blades
(B) Excess work done by rotor due to momentum of water particles
(C) Overheating of turbine blaces
(D) Reduced load on condenser
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M

Mr. Dubey • 52.52K Points
Coach

Q. According to Boyle's law

(A) At constant pressure the temperature of a gas varies inversely as its volume
(B) At constant pressure the absolute temperature of a gas varies inversely as its volume
(C) At constant temperature, the pressure of a gas varies inversely as its volume
(D) At constant temperature, the absolute pressure of a gas varies inversely as its volume
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