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Machine Design

Machine Design
If a spring is cut down into two springs, the stiffness of cut springs will be

Same
None of these
Double
Half

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Machine Design
In order to permit the thermal expansion/contraction of tubing, it should be

Crimped
Honed
Bent
Flared

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Machine Design
Which of the following pipe joints would be suitable for pipes carrying steam?

Threaded
Expansion
Bell and spigot
Flanged

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Machine Design
In helical bevel gearing, the axes of shafts are __________ and the teeth are curved.

Non-intersecting and non-parallel
Intersecting
Intersecting and non-parallel
None of these

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Machine Design
A V-belt designated as B 4430 LP has

4430 mm as centre distance between pulleys
4430 mm as nominal pitch length
4430 mm as diameter of large pulley
4430 mm as diameter of small pulley

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

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