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Machine Design

Machine Design
When a load W is applied suddenly on a bar of cross-sectional area A, the stress induced in the bar will be

3W/A
2W/A
W/A
W/2A

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Machine Design
Auto frettage is the method of

Increasing the life of thick cylinders
Joining thick cylinders
Pre-stressing thick cylinders
Calculating stresses in thick cylinders

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Machine Design
The maximum bending stress in a curved beam having symmetrical section always occur at the

Outside fiber
Centroidal axis
Inside fiber
Neutral axis

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Machine Design
According to Indian standards, a bolt thread of 6 mm size of coarse pitch and with allowance on the threads and normal tolerance grade is designated as

M8 - 6d
M6
M8
M6 - 8d

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Machine Design
According to Indian standards, total numbers of fundamental deviations are

10
20
25
15

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Machine Design
The included angle for the British Association thread is

47.3°
55°
29°
60°

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MORE MCQ ON Machine Design

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