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Machine Design

Machine Design
In standard taper roller bearings, the angle of taper of outer raceway is

15°
25°
8°
5°

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Machine Design
A hollow shaft will transmit a __________ torque than a solid shaft of the same mass and same material.

None of these
Smaller
Greater
Medium

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Machine Design
The product of the diametral pitch and circular pitch is equal to

π × number of teeth
1
1/π
π

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Machine Design
A shaft is subjected to fluctuating loads for which the normal torque (T) and bending moment (M) are 1000 N-m and 500 N-m respectively. If the combined shock and fatigue factor for bending is 1.5 and combined shock and fatigue factor for torsion is 2, then the equivalent twisting moment for the shaft is

2050 N-m
2100 N-m
2136 N-m
2000 N-m

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Machine Design
The strap end of a connecting rod of steam engine is joined by

Gib of cotter joint
Spigot socket cotter joint
Sleeve and cotter joint
Knuckle joint

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Machine Design
Which of the following is a permanent fastening?

Cotters
Rivets
Keys
Bolts

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