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Machine Design

Machine Design
The usual proportion for the width of key is (where d = Diameter of shaft or diameter of hole in the hub)

d/8
d/4
d/6
d/2

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Machine Design
Which of the following cotter joint will be used to connect strap end of a connecting rod?

Spigot and socket cotter joint
Gib and cotter joint
Any one of these
Sleeve and cotter joint

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Machine Design
According to Indian standards, the diameter of rivet hole is made larger than the basic size of rivet by

1 mm for rivet diameter from 27 mm to 36 mm
0.5 mm up to rivet diameter of 24 mm
All of these
2 mm for rivet diameter from 39 mm to 48 mm

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Machine Design
A hollow shaft will transmit a __________ torque than a solid shaft of the same mass and same material.

None of these
Medium
Smaller
Greater

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Machine Design
A tapered key which fits in a key way in the hub and the bottom of which is shaped to fit the curved surface of the shaft, is known as,

Hollow saddle key
None of these
Hollow key
Soft key

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Machine Design
The stress which vary from a minimum value to a maximum value of the same nature (i.e. tensile or compressive) is called

Yield stress
Alternating stress
Fluctuating stress
Repeated stress

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