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Machine Design

Machine Design
The deflection of a cantilever beam under load W is 8. If its width is halved, then the deflection under load W will be

44047
43929
44045
43869

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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

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

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

122°
152°
136°
40°

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Machine Design
Which of the following bearing is preferred for oscillating conditions?

Needle roller bearing
Taper roller bearing
Double row roller bearing
Angular contact single row ball bearing

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Machine Design
In cylindrical cams, the follower moves

In a direction parallel to the cam axis
In any direction irrespective of cam axis
Along the cam axis
In a direction perpendicular to the cam axis

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Machine Design
Gears are casted by

Permanent mould casting
Slush casting
Sand mould casting
Centrifugal casting

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