Explore topic-wise MCQs in Mechanical Engineering.

This section includes 454 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Engineering knowledge and support exam preparation. Choose a topic below to get started.

451.

High air-fuel ratio in gas turbines

A. Increases power output
B. Improves thermal efficiency
C. Reduces exhaust temperature
D. Do not damage turbine blades
Answer» D. Do not damage turbine blades
Discussion
452.

Adiabatic compression is one in which

A. Temperature during compression remains constant
B. No heat leaves or enters the compressor cylinder during compression
C. Temperature rise follows a linear relationship
D. Work done is maximum
Answer» C. Temperature rise follows a linear relationship
Discussion
453.

In multistage compressor, the isothermal compression is achieved by

A. Employing inter-cooler
B. By constantly cooling the cylinder
C. By running compressor at very slow speed
D. By insulating the cylinder
Answer» D. By insulating the cylinder
Discussion
454.

A simple turbojet engine is basically

A. A propeller system
B. Gas turbine engine equipped with a propulsive nozzle and diffuse
C. Chemical rocket engine
D. Ramjet engine
Answer» C. Chemical rocket engine
Discussion