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ESE 2022 ME - Technical Quiz 37

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Question 1

Cutting tool material 18-4-1 HSS has which one of the following composition.

Question 2

A drum brake is shown in the figure. The drum is rotating in anticlockwise direction. The coefficient of friction between drum and shoe is 0.2. The dimensions shown in the figure are in mm. The braking torque (in N.m) for the brake shoe is ______

Question 3

A rigid ball of weight 100 N is suspended with the help of a string. The ball is pulled by a horizontal force F such that the string makes an angle of 30 ° with the vertical. The magnitude of force F (in N) is __________

Question 4

Consider laminar flow of water over a flat plate of length 1 m. If the boundary layer thickness at a distance of 0.25 m from the leading edge of the plate is 8 mm, the boundary layer thickness (in mm), at a distance of 0.75 m, is _______

Question 5

The friction force is generally due to

Question 6

Consider the following statements:

1) Charcoal is smokeless solid fuel of black colour.

2) Charcoal has less energy density as compare to Bioethanol.

3) Charcoal is used in the production of high-quality steel.

Which of the following statements is/are correct __________?

Question 7

In Equipment and process improvement, the manpower losses will not include:

Question 8

Heat transfer rates in drop wise condensation may be as much as thanin film condensation

Question 9

Which of the following statements is incorrect ________.

Question 10

A centrifugal pumps having efficiency of 75%, is used to deliver 2000 L/min. of water at 20o C when the brake power is 25HP. The rise in pressure (in kPa), is
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