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Machine Design

Machine Design
If the tearing efficiency of a riveted joint is 75%, then the ratio of diameter of rivet to the pitch is equal to

0.5
0.25
0.2
0.6

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Machine Design
In designing a connecting rod, it is considered like __________ for buckling about X-axis.

One end fixed and the other end hinged
Both ends fixed
One end fixed and the other end free
Both ends hinged

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Machine Design
The cross-section of the arm of a bell crank lever is

Elliptical
Rectangular
Any one of these
I-section

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Machine Design
The design of pin of a rocker arm of an I.C. engine is based on

All of these
Bearing failure
Bending failure
Shearing failure

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Machine Design
Endurance limit or fatigue limit is the maximum stress that a member can withstand for an infinite number of load applications without failure when subjected to

Combined static and dynamic loading
Dynamic loading
Static loading
Completely reversed loading

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Machine Design
When a bolt and nut is made of mild steel, then the effective height of nut is made equal to (where d = Nominal diameter of bolt)

0.5 d
0.75 d
1.25 d
d

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