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Machine Design

Machine Design
Two shafts of the same length and material are joined in series. If the ratio of their diameters is 2, then the ratio of their angles of twist will be

8
16
2
4

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Machine Design
In order to avoid tearing of the plate at edge, the distance from the center line of the rivet hole to the nearest edge of the plate in terms of dia. of rivet d should be equal to

1.5 d
1.25 d
1 d
1.75 d

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

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

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Machine Design
The dynamic tooth load is due to

Inaccuracies of tooth spacing
Deflections of teeth under load
All of these
Irregularities in tooth profiles

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Machine Design
The difference between the upper limit and lower limit of a dimension is called

Tolerance
Nominal size
Basic size
Actual size

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Machine Design
Lewis equation is applied

To stronger of the pinion or gear
Only to the pinion
To weaker of the pinion or gear
Only to the gear

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