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ESE Prelims 2022 Achievers Quiz 22

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Question 1

The Reynolds number of a fluid flowing over a flat plate at a distance of 16 cm from the leading edge is 25600. The thickness of the boundary layer at this point will be

Question 2

If the extrusion ratio is 20, the percentage reduction in the cross-sectional area of the billet after the extrusion will be.

Question 3

Which one of the following is a part of moulding flask?

Question 4

In a two-fluid heat exchanger, the inlet and outlet temperature of the hot fluid are 65 °C and 40 °C respectively. For the cold fluid, these are 15 °C and 42 °C. The heat exchanger is a:

Question 5

Which among the following is correct regarding Mohr's Circle?

Question 6

The COP of a refrigerator working on a reversed Carnot cycle is 5. The ratio of the highest absolute temperature to the lowest absolute temperature would be

Question 7

The thickness of a gear tooth is measured

Question 8

If at a point in a body Description: Description: E:\Gate\SSC JE Mechanical Part 1\Practice-Set-1_files\image198.pngMPa, Description: Description: E:\Gate\SSC JE Mechanical Part 1\Practice-Set-1_files\image199.pngMPa and Description: Description: E:\Gate\SSC JE Mechanical Part 1\Practice-Set-1_files\image200.pngMPa, then the radius of Mohr’s circle is equal to.

Question 9

A power plant, which uses a gas turbine followed by steam turbine for power generation, is called

Question 10

A refrigeration plant uses a condenser with heat rejection ratio of 1.2. If the capacity of the plant is 210 kJ/min, then the value of the COP of the refrigeration plant is
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