Explore topic-wise MCQs in Ic Engine.

This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Ic Engine knowledge and support exam preparation. Choose a topic below to get started.

1.

The thermal efficiency of a diesel engine is abou?

A. 15%
B. 30%
C. 50%
D. 70%
Answer» E.
Discussion
2.

Otto cycle efficiency is higher than Diesel cycle efficiency for the same compression ratio and heat input because, in Otto cycle

A. combustion is at constant volume
B. expansion and compression are isentropic
C. maximum temperature is higher
D. heat rejection is lower
Answer» E.
Discussion
3.

For constant maximum pressure and heat input, the air standard efficiency of gas power cycle is in the order.

A. Diesel cycle, Dual cycle, Otto cycle
B. Otto cycle,Diesel cycle, Dual cycle
C. Dual cycle,Otto cycle, Diesel cycle
D. Diesel cycle,Otto cycle, Dual cycle
Answer» B. Otto cycle,Diesel cycle, Dual cycle
Discussion
4.

If both Stirling and Carnot cycles operate within the same temperature limits, then efficiency of Stirling cycle as compared to Carnot cycle is

A. more
B. less
C. equal
D. none of the mentioned
Answer» D. none of the mentioned
Discussion
5.

For the same compression ratio, the efficiency of dual combustion cycle is

A. greater than otto cycle
B. less than diesel cycle
C. less than otto cycle and greater than diesel cycle
D. greater than both otto and diesel cycle
Answer» D. greater than both otto and diesel cycle
Discussion
6.

The efficiency of Carnot cycle is maximum for

A. gas engine
B. petrol engine
C. steam engine
D. reversible engine
Answer» E.
Discussion
7.

For same compression ratio and for same heat added

A. Otto cycle is more efficient than Diesel Cycle
B. Diesel cycle is more efficient than Otto Cycle
C. Efficiency depends on other factors
D. None of the mentioned
Answer» B. Diesel cycle is more efficient than Otto Cycle
Discussion