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Machine Design

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

Bent
Honed
Crimped
Flared

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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

43929
44047
43869
44045

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

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

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Machine Design
In cyclic loading, stress concentration is more serious in

Brittle materials
Ductile materials
Brittle as well as ductile materials
Elastic materials

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Machine Design
According to Unwin's formula, the relation between the diameter of rivet hole (d) and the thickness of plate (t) is given by (where d and t are in mm)

d = 1.6√t
d = 2√t
d = 6√t
d = √t

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Machine Design
18/8 steel contains

18% nickel and 8% vanadium
18% vanadium and 8% nickel
18% nickel and 8% chromium
18% chromium and 8% nickel

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