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ESE Prelims 2022 Achievers Quiz 19

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Question 1

Which of the following Cycle can be represented by this PV and TS diagram?

Question 2

A steel wire of 20 mm diameter is bent in to a circular arc of 40 meter radius. Determine the maximum bending stress (in MPa) induced in it.

[Take E=2 x 10⁵N/mm²]

Question 3

In a piston-cylinder arrangement addition of energy and movement of piston is such that the product PV remains constant. The initial pressure is 200 kPa and volume is 2 m^3. If the final pressure is 100 kPa, then work done by the gas on piston (in kJ) for this arrangement is

Question 4

The process of super-heating in a refrigeration cycle

Question 5

For an irrotational motion___.

Question 6

In atomic hydrogen welding, hydrogen acts as

Question 7

A shaft of diameter D is subjected to a torque T. To have the angle of twist four times as that before, the percentage reduction in diameter needed is ________.

Question 8

The primary function of the flywheel is______.

Question 9

Which non-dimensional number relates the thermal boundary layer and hydrodynamic boundary layer?

Question 10

In thermal power plants, the deaerator is used mainly to______

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