The efficiency of a jet engine is higher at

A)
low speeds
B)
high altitudes
C)
low altitudes
D)
high speeds

Correct Answer : Option (B) :   high altitudes

Recently Updated in Compressors, Gas Dynamics and Gas Turbines Questions
The work ratio of simple gas turbine cycle depends on
A)
Pressure ratio
B)
Minimum cycle temperature
C)
Maximum cycle temperature
D)
All of the above

Correct Answer :   All of the above

Knudsen number ranges in between 0.3 and 1 in ________
A)
boundary region
B)
boundary & transient region
C)
transient region
D)
None of the above

Correct Answer :   transient region

Explanation : Knudsen number ranges in between 0.3 and 1 in transient region.

When altitude of earth is in between 90 km and 150 km Knudsen number can be in between 0.3 and _________
A)
1
B)
2
C)
3
D)
4

Correct Answer :   1

Explanation : When altitude of earth is in between 90 km and 150 km Knudsen number can be in between 0.3 and 1.

Mechanical Engineering MCQ's

Theory of Machines
Engineering Mechanics
Machine Design
Strength of Materials
Engineering Materials
Hydraulic Machines
Thermodynamics
Engineering Drawing
Workshop Technology
Automobile Engineering
Steam Boilers and Engines
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