250+ TOP MCQs on Advantages of Two Stroke Engines and Answers

IC Engines Multiple Choice Questions on “Advantages of Two Stroke Engines”.

1. The work required to overcome the friction of the exhaust and suction strokes is saved.
a) True
b) False
Answer: a
Clarification: None.

2. As there is a working stroke in every revolution, a more uniform turning moment is obtained on the crankshaft and therefore, a __________ flywheel is required.
a) heavier
b) slower
c) lighter
d) none of the mentioned
Answer: c
Clarification: None.

3. Two stroke engines are __________ than four stroke engines for the same power output and speed.
a) heavier
b) slower
c) lighter
d) none of the mentioned
Answer: c
Clarification: None.

4. For the same output, two stroke engines occupy ___________ space.
a) greater
b) lesser
c) same
d) none of the mentioned
Answer: b
Clarification: None.

5. The construction of a two stroke cycle engine is ____________ because it has ports instead of valves.
a) complex
b) simple
c) unpredictable
d) none of the mentioned
Answer: b
Clarification: None.

6. In case of two stroke engines because of scavenging, burnt gases remain in the clearance space as in case of four stroke engines.
a) True
b) False
Answer: b
Clarification: No, in fact in two stroke engines because of scavenging, burnt gases do not remain in the clearance space as in case of four stroke engines.

7. In a four stroke cycle diesel engine, compression __________
a) starts at 40º after bottom dead center and ends at 10º before top dead center
b) starts at 40º before top dead center and ends at 40º after bottom dead center
c) starts at top dead center and ends at 40º before bottom dead center
d) may start and end anywhere
Answer: a
Clarification: None.

8. In a four stroke cycle diesel engine, the exhaust valve __________
a) opens at 30º before bottom dead center and closes at 10º after top dead center
b) opens at bottom dead center and closes at top dead center
c) opens at 30º after bottom dead center and closes at 10º before top dead center
d) may open or close anywhere
Answer: a
Clarification: None.