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Machine Design

Machine Design
Euler’s formula for a mild steel column is not valid if the slenderness ratio is

60
100
120
90

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Machine Design
A single strap butt joint is always in __________ shear.

Double
Triple share
None of these
Single

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Machine Design
The ratio of driving tensions in V-belt drives is __________ flat belt drives.

sin α times more than
Equal to
sin α times less than
cosec α times more than

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Machine Design
A coupling used to connect two perfectly aligned shafts, is

All of these
Flange coupling
Muff coupling
Compression coupling

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Machine Design
Maximum principal stress theory is applicable for

Ductile materials
All of these
Elastic materials
Brittle materials

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Machine Design
In a marine flange coupling, the pitch circle diameter of bolts is taken as

2 d
2.5 d
1.6 d
1.2 d

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