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7.SSC JE (ME)II Machine Design Booster Quiz-1

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Question 1

For the same friction lining material and applied load, what will be the ratio of torque carrying capacity calculated using Uniform pressure theory and Uniform wear theory if clutch plates are solid ( Ri = 0) _________.

Question 2

As per maximum shear stress theory of failure. The relation between yield strength in shear (𝜏𝑦) and yield strength in tension (σt) is __________.

Question 3

The piston bearings in heavy duty diesel engines are __________.

Question 4

The Sommerfeld number is given by __________.
Where:
r = radius of journal
c = radial clearance
μ = viscosity of lubricant (N-s/mm2
ns = journal speed (rev/s)
p = unit bearing pressure (N/mm2)

Question 5

The coupling used to connect two shafts with large angular misalignment is____.

Question 6

Self locking is not possible in case of

Question 7

Anti-friction bearings are ______.

Question 8

Which of the following is an example of positive clutch?

Question 9

When the frictional force helps to apply the brake, then the brake is said to be_____.

Question 10

Which of the following is the desirable property for the belt material?
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Jul 14AE & JE Exams