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Machine Design

Machine Design
In designing a flange coupling, the pitch circle diameter of bolts is taken as (where d = Diameter of the shaft)

4 d
2 d
5 d
3 d

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Machine Design
When bevel gears having equal teeth and equal pitch angles connect two shafts whose axes intersect at right angle, then they are known as

Crown bevel gears
Internal bevel gears
Miter gears
Angular bevel gears

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Machine Design
The number of slots in a 25 mm castle nut is

4
2
6
8

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Machine Design
The condition for maximum power transmission is that the maximum tension in the flat belt should be equal to (Where, Pc = tension in belt due to centrifugal force)

3 Pc
1 Pc
Pc/3
2 Pc

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

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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
0.6
0.2
0.25

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