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Machine Design

Machine Design
Which one of the following is a positive drive?

Crossed flat belt drive
Chain drive
V-belt drive
Rope drive

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Machine Design
The bearings of heavy series have capacity __________ over the medium series.

40 to 50%
20 to 30%
10 to 20%
30 to 40%

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Machine Design
Which process will increase the fatigue duration of parts?

Finishing and polishing
Shot-peening
Electroplating
De-carburisation

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Machine Design
The power transmitted by means of a belt depends upon

All of these
Arc of contact between the belt and the smaller pulley
Tension under which the belt is placed on the pulleys
Velocity of the belt

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Machine Design
The dedendum is the radial distance from the

Pitch circle to the top of a tooth
Top of a tooth to the bottom of a tooth
Pitch circle to the bottom of a tooth
Addendum circle to the clearance circle

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Machine Design
Which of the following welded joint is designed for shear strength?

Butt welded joint
Transverse fillet welded joint
All of these
Parallel fillet welded joint

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