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ESE 2022 ME - Technical Quiz 13

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Question 1

In a pipe flow, the pressure (P) of fluid varies according to the relation P = 4x² + 3x kPa. Find the shear stress at wall for that pipe of diameter 500 mm at x = 2m.

Question 2

A De laval turbine has a blade velocity of 300 m/s. The steam enters the turbine at a mass flow rate of 1 Kg/s at a Nozzle angle of 20° and leaves the nozzle at a speed of 800 m/s. Calculate the power developed if the blade coeff. is 0.8 (Assume symmetrical blading)

Question 3

Entropy of wet stream (1 kg) is given by

Question 4

A solid circular shaft of diameter 100 mm is subjected to an axial stress of 50 MPa. It is further subjected to a torque of 10 kNm. The maximum principal stress experienced on the shaft is closest to

Question 5

Nitriding, a heat treatment process, will______.

Question 6

Which of the below can be studies by Wear debris analysis ?

1) Rubbing wear

2) Cutting wear

3) Rolling fatigue

4) combined rolling and sliding wear

5) Severe sliding wear

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 20^o C when the brake power is 25HP. The rise in pressure (in kPa), is

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ESE & GATE ME General

Sep 29ESE & GATE ME