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AAI Technical Rapid Quiz-8

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Question 1

Knocking in a spark ignition engine can be reduced by
1) retarding the spark
2) supercharging
3) increasing the engine speed
4) using a fuel of long straight chain structure
Select the correct answer using the code given below.

Question 2

In stress strain diagram shown, as temperature increases:

Question 3

In solids, what will be the effect of deformation, if force is maintained?

Question 4

For irrotational fluid flow curl of velocity vector is

Question 5

The purpose of surge tank in a pipe line is to

Question 6

In a machining operation cutting speed is reduced by 50% Assuming n=0.5, C=300 in Taylor’s equation. The ratio of final tool life to initial is _________.

Question 7

The welding process which uses a blanket of fusible granular flux is
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