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Machine Design

Machine Design
In a marine flange coupling, the thickness of flange is taken as

d/4
3d/4
d/3
d/2

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Machine Design
For maximum power, the velocity of the belt will be

√(T/3m)
√(T/m)
None of these
√(T/2m)

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Machine Design
When carbon in the cast iron is principally in the form of graphite, the cast iron will be of

Brown colour
Yellow colour
White colour
Grey colour

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Machine Design
The contact ratio for gears is

Less than one
Zero
None of these
Greater than one

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Machine Design
Crushing resistance required to crush the rivet per pitch length is

n.d.t.σc
p.t.σc
p.d.σc
(p - d) t.σc

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Machine Design
When two helical springs of equal lengths are arranged to form a cluster spring, then

Load taken by each spring will be half the total load
Only A is correct
Shear stress in each spring will be equal
Both A and B is correct

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