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Machine Design

Machine Design
The helix angle for double helical gears may be made up to

60°
45°
75°
90°

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

17
21
15
25

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Machine Design
The objective of caulking in a riveted joint is to make the joint

Stronger in tension
Free from corrosion
Free from stress
Leak-proof

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Machine Design
When a shaft is subjected to combined twisting moment (T) and bending moment (M), then the equivalent twisting moment is equal to

(1/2) × √(M² + T²)
(1/2) × [M + √(M² + T²)]
M + √(M² + T²)
√(M² + T²)

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Machine Design
A connecting rod should be

Equally strong in buckling about X-axis and Y-axis
Any one of the above
Strong in buckling about X-axis
Strong in buckling about Y-axis

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Machine Design
The ball bearings are, usually, made from

Medium carbon steel
High carbon steel
Low carbon steel
High speed steel

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MORE MCQ ON Machine Design

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