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Machine Design

Machine Design
The efficiency of a riveted joint is equal to

Ps /P
Least of Pt, Ps and Pc/P
Pt /P
Pc /P

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Machine Design
A locking device extensively used in marine type connecting rod ends is a

Ring nut
Jam nut
Sawn nut
Castle nut

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Machine Design
Wire ropes as compared to cotton ropes

Are lighter in weight
Offer silent operation
Can withstand shock loads
All of these

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Machine Design
In helical gears, the distance between similar faces of adjacent teeth along a helix on the pitch cylinders normal to the teeth, is called

Normal pitch
Module
Axial pitch
Diametral pitch

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Machine Design
Stress concentration factor is defined as the ratio of

Maximum stress to the endurance limit
Maximum stress to the nominal stress
Nominal stress to the maximum stress
Nominal stress to the endurance limit

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Machine Design
The notch angle of the Izod impact test specimen is

20°
30°
45°
10°

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