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BPSC AE (ME) Quiz - 15

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Question 1

A rectangular bar 40 mm × 20 mm is subjected to a steady tensile load of 200 kN. What will be the factor of safety, if the yield strength of the material is 500 MPa

Question 2

Guest and Tresca’s theory is called maximum

Question 3

The design calculations for members subjected to fluctuating loads with the same factor of safety yield the most conservative estimates when using _________.

Question 4

Torsional stiffness is given by

Question 5

Which of the following bearing is preferred for oscillating conditions?

Question 6

Two identical ball bearings P and Q are operating at loads of 30kN and 90kN respectively. The ratio of life of bearing P to the life of bearing Q is ( Consider dynamic capacity is same for both bearing)

Question 7

Which one of the following is not a friction clutch?

Question 8

The equivalent coefficient of friction in case of block brake with long shoe is denoted by

Question 9

A closed coil helical spring is cut into three equal parts and the parts are then connected in series. What is the resultant stiffness of the new configuration?

Question 10

Calculate the efficiency of the circumferential joint if pitch of rivets is 60 mm and diameter of rivets is 22 mm _________.
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