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AAI Technical Rapid Quiz-32

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Question 1

Specific speed of a turbine depends upon _________.

Question 2

Assumption made in the Fourier’s law is that the heat flow
A) is in steady state
B) one dimensional heat transfer

Question 3

For which material the Poisson’s ratio is more than unity?
A) steel
B) copper
C) aluminium
D) cast iron

Question 4

The following is the inversion of slider crank mechanism
A) Whitworth quick return mechanism
B) Hand pump
C) Oscillating cylinder engine

Question 5

For the same output, same speed and same compression ratio the thermal efficiency of a two stroke cycle petrol engine as compared to that for four stroke cycle petrol engine is

Question 6

An open system is one in which _________.

Question 7

Feather keys are generally ____________.

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Aug 21ESE & GATE ME