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Machine Design

Machine Design
A single strap butt joint is always in __________ shear.

Double
Single
Triple share
None of these

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Machine Design
In order to have smooth operation, the minimum number of teeth on the smaller sprocket, for moderate speeds, should be

25
17
21
15

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Machine Design
Allen bolts are

Designed for shock load
Used in aircraft application
Self locking bolts
Provided with hexagonal depression in head

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Machine Design
An Involute pinion and gear are in mesh. If both have the same size of addendum, then there will be interference between the

Tip of the gear and flank of pinion
Tip of both gear and pinion
Tip of the pinion and flank of gear
Flanks of both gear and pinion

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Machine Design
The efficiency of a riveted joint is equal to

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

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Machine Design
The diameter of knuckle pin in a knuckle joint is usually taken as (where d = Diameter of the rod)

d
1.2 d
0.8 d
0.5 d

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