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Machine Design

Machine Design
In order to have smooth operation, the minimum number of teeth on the smaller sprocket, for moderate speeds, should be

25
17
15
21

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Machine Design
In a flat belt drive, if the slip between the driver and belt is 1 %, between the belt and follower is 3% and driver and follower pulley diameters are equal, then velocity ratio of the drive will be

0.97
0.99
0.98
0.96

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Machine Design
In cyclic loading, stress concentration is more serious in

Brittle materials
Brittle as well as ductile materials
Elastic materials
Ductile materials

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Machine Design
Applications in which stresses are encountered in one direction only uses following type of threads

Metric
Square
Buttress
Acme

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Machine Design
Rankine's theory is used for

Ductile materials
Elastic materials
Plastic materials
Brittle materials

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

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