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Machine Design

Machine Design
Ball bearing type screws are found in following application

Steering mechanism
Screw jack
Crane
Aeroplane engines

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Machine Design
A chain drive transmits __________ power as compared to belt drive.

More
Less
Same
None of these

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Machine Design
According to I.B.R., the factor of safety of riveted joint should not be less than

2
4
3
1

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Machine Design
A long helical spring having a spring stiffness of 12 kN/m and number of turns 20, breaks into two parts with number of turns 10 each in both the parts. If the two parts are connected in series, then the softness of the resultant spring will be

12 kN/m
24 kN/m
6 kN/m
30 kN/m

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Machine Design
The coefficient of friction between the belt and pulley depends upon the

All of these
Slip of belt
Speed of belt
Material of belt and pulley

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Machine Design
The tension on the slack side of the belt is __________ the tension on the tight side of the belt.

Less than
None of these
Greater than
Equal to

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