Applied Thermodynamics (3161910) MCQs

MCQs of IC Engine Performance and Emissions

Showing 1 to 10 out of 30 Questions
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1.
The mean effective pressure obtained from the engine indicator indicates the
(a) maximum pressure developed
(b) minimum pressure
(c) instantaneous pressure at any instant
(d) average pressure
Answer:

Option (d)

2.
The ratio of indicated thermal efficiency to the corresponding air standard cycle efficiency is called
(a) net efficiency
(b) efficiency ratio
(c) relative efficiency
(d) overall efficiency
Answer:

Option (c)

3.

The basic measurement and testing parameters are

(a)

friction power
(b)

indicated power
(c)

brake power
(d)

all of the mentioned
Answer:

Option (d)

4.
_____________ is the difference between indicated and brake power of an engine.
(a) Friction power
(b) Overall power
(c) Net power
(d) None of the mentioned
Answer:

Option (a)

5.
_____________ is also known as fuel rate extrapolation method.
(a) Morse test
(b) Motoring test
(c) Willan’s line method
(d) Retardation test
Answer:

Option (c)

6.
The internal losses in an engine are
(a) pumping losses
(b) brake losses
(c) combustion losses
(d) all of the above
Answer:

Option (a)

7.
In the Morse test, the engine is first run at the required speed by adjusting the throttle in ___________.
(a) CI engine
(b) SI engine
(c) Gas engine
(d) Steam engine
Answer:

Option (b)

8.
If the speed of the engine is increased, the indicated power will
(a) increase
(b) decrease
(c) remain same
(d) none of the above
Answer:

Option (a)

9.
The total power developed by the combustion of fuel in the combustion chamber is called
(a) brake power
(b) indicated power
(c) friction power
(d) net power
Answer:

Option (b)

10.
The power developed by an engine at the output shaft is called
(a) brake power
(b) indicated power
(c) friction power
(d) total power
Answer:

Option (a)

Showing 1 to 10 out of 30 Questions
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