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AAI Tech. & ATC Combined Quiz-4

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Question 1

For the same inlet and outlet temperatures of hot and cold fluids, the Log Mean Temperature Difference (LMTD) is

Question 2

A carnot engine rejects 30% of absorbed heat to a sink at 30% of absorbed heat to a sink at 30 °C. The temperature of the heat source is

Question 3

With rise in temperature thermal conductivity of air

Question 4

In the two - rotor system shown in the figure, (I₁<l₂), a node of vibration is situated

Question 5

A Mohr’s circle reduces to a point when the body is subjected to

Question 6

Hydrogen bomb is based on

Question 7

The focal length of eye piece of a telescope is 3 cm. To obtain a magnification of 20, the focal length of the objective lens should be (in cm)

Question 8

If a momentum ‘p’ is possessed by an object of velocity v, then its mass will be

Question 9

find

Question 10

If two sides of the triangle are

and their included angle is 60 degrees, then third side is?

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