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Machine Design

Machine Design
In designing a flange coupling, the pitch circle diameter of bolts is taken as (where d = Diameter of the shaft)

5 d
4 d
3 d
2 d

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Machine Design
A locking device extensively used in marine type connecting rod ends is a

Castle nut
Jam nut
Sawn nut
Ring nut

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Machine Design
In a steam engine, the piston rod is usually connected to the cross-head by means of a

Knuckle joint
Universal joint
Cotter joint
Oldham coupling

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Machine Design
When two springs are in series (having stiffness K), the equivalent stiffness will be

K/2
K
K/4
2K

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Machine Design
A cotter joint is used to connect two __________ rods.

Parallel
Perpendicular
None of these
Co-axial

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Machine Design
The pitch of threads on a Jock nut in comparison to pitch of nut is

Very fine
Same
Coarser
Finer

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