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GATE Prev Year : Machine Design Test-2

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Question 1

The uniaxial yield stress of a material is 300 MPa According to von Mises criterion, the shear yield stress (in MPa) or the material is ________.

Question 2

The stress-strain curve for mild steel is shown in the figure given below. Choose the correct option referring to both figure and table.

Question 3

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 4

Fatigue failure is caused due to effect of:

Question 5

Square key of side ‘d/4’ each and length l is used to transmit torque ‘T’ from the shaft of diameter ‘d’ to the hub of a pulley. Assuming the length of the key to be equal to the thickness of the pulley, the average shear stress developed in the key is given by

Question 6

A bolted joint is shown below. The maximum shear stress, in MPa, in the bolts at A and B, respectively are
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(all dimensions in the figure are in mm )

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ESE & GATE ME Machine Design

Feb 4ESE & GATE ME