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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

15
17
21
25

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Machine Design
In a marine flange coupling, the pitch circle diameter of bolts is taken as

1.6 d
2.5 d
2 d
1.2 d

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Machine Design
A taper key which fits half in the key way of the hub and half in the key way of shaft, is known as

Crown Bevel gears
Internal bevel gears
Mitre gears
Angular bevel gears

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Machine Design
According to Indian standard specifications, 100 H6/g5 means that the

Actual size is 100 mm
None of these
Basic size is 100 mm
Difference between the actual size and basic size is 100 mm

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Machine Design
Eye bolts are used for

Transmission of power
Absorbing shock and vibrations
Lifting and transportation of machines and cubicles
Foundation purposes

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Machine Design
If a shaft made from ductile material is subjected to combined bending and twisting moment, calculations based on which one of the following failure theories will give the most conservative value?

Maximum principal stress theory
Maximum distortion energy theory
Maximum shear stress theory
Maximum strain energy theory

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