Explore topic-wise MCQs in Ic Engine.

This section includes 9 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.

IF_THE_TEMPERATURE_OF_INTAKE_AIR_IN_I.C._ENGINE_IS_LOWERED,_THEN_ITS_EFFICIENCY_WILL?$

A. increase
B. decrease
C. remain same
D. increase up to certain limit and then decrease
Answer» B. decrease
Discussion
2.

The_fuel_in_diesel_engine_is_normally_injected_at_pressure_of$

A. 5-10 kg/cm<sup>2</sup>
B. 20-25 kg/cm<sup>2</sup>
C. 60-80 kg/cm<sup>2</sup>
D. 90-130 kg/cm<sup>2</sup>
Answer» E.
Discussion
3.

The combustion in spark ignition engine i?

A. homogeneous
B. heterogeneous
C. laminar
D. none of the mentioned
Answer» B. heterogeneous
Discussion
4.

The thermal efficiency of a diesel cycle having fixed compression ratio, with increase in cut-off ratio will

A. increase
B. decrease
C. be independent
D. none of the mentioned
Answer» C. be independent
Discussion
5.

In a diesel engine, the fuel is ignited by

A. spark
B. injected fuel
C. heat resulting from compressing air that is supplied for combustion
D. combustion chamber
Answer» D. combustion chamber
Discussion
6.

The combustion in compression ignition engine is

A. homogeneous
B. heterogeneous
C. laminar
D. none of the mentioned
Answer» C. laminar
Discussion
7.

In Diesel cycle, heat addition takes place at

A. constant temperature
B. constant pressure
C. constant volume
D. none of the mentioned
Answer» C. constant volume
Discussion
8.

A diesel engine has compression ratio from

A. 6 to 10
B. 10 to 15
C. 16 to 20
D. 25 to 40
Answer» D. 25 to 40
Discussion
9.

Diesel cycle is also known as

A. constant volume cycle
B. constant pressure cycle
C. constant temperature cycle
D. none of the mentioned
Answer» C. constant temperature cycle
Discussion