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ESE ME 2021 : Technical Quiz-2

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Question 1

Displacement thickness ()is given by

Question 2

The number which is used to the test the validity of lumped heat capacity approach?

Question 3

What will be the thermal stress (in MPa) developed in a rod with both ends fixed  and having a diameter of 4 cm and length of 2 m,if experiences heating from temperature 50oC to 200oC. The coefficient of thermal expansion is α = 10 × 10-6/oC and young’s modulus is 250 GPa?

Question 4

In the fuel mixture of iso octane and n-heptane, the % of n-heptane by volume is 40. The octane no. of fuel is

Question 5

The kinetic energy correction factor for laminar flow in pipe closest to

Question 6

The equation of free Vibration as a system is . Its natural frequency in Hz is

Question 7

In centrifugal casting the impurities are collected at ________.

Question 8

Total heat supplied at constant volume is

Question 9

A 70 kg man pushes a 50 kg man by a force of 70 N. The 50 kg man has pushed the 70kg man with a force of magnitude

Question 10

The process in which the material removal rate is governed by Faraday law is:
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May 11ESE & GATE ME