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Machine Design

Machine Design
In Vickers hardness testing, the pyramid indentor apex is

122°
40°
136°
152°

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Machine Design
In a transverse fillet welded joint, the size of weld is __________ the throat of weld.

Double
0.5 times
2 times
Equal to

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Machine Design
The period during which the cam follower remains at rest, when cam moves, is known as

Idle period
Fixed period
Dwell period
Constant period

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Machine Design
The washer is generally specified by its

Hole diameter
Outer diameter
Thickness
Mean diameter

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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

M6 - 8d
M8 - 6d
M8
M6

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Machine Design
The notch sensitivity q is expressed in terms of fatigue stress concentration factor Kf and theoretical stress concentration factor Kt as

(Kf - 1)/ (Kt - 1)
(Kf + 1)/ (Kt + 1)
(Kt + 1)/ (Kf + 1)
(Kt - 1)/ (Kf - 1)

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