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Machine Design

Machine Design
The rivet head used for boiler plate riveting is usually

Counter sunk head
Snap head
Pan Head
Conical head

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Machine Design
The power transmitted by belt drive depends upon

Arc of contact
Belt velocity
Initial belt tension
All of these

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Machine Design
The velocity factor for ordinary cut gears operating at velocities up to 12.5 m/s is equal to

6/(6 + v)
3/(3 + v)
4.5/(4.5 + v)
0.75/(0.75 + √v)

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Machine Design
In a transverse fillet welded joint, the size of weld is __________ the throat of weld.

Equal to
2 times
0.5 times
Double

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Machine Design
A spring of stiffness 1000 N/m is stretched initially by 100 mm from the undeformed position. The work required to stretch it by another 100 mm is

7 N-m
15 N-m
10 N-m
5 N-m

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Machine Design
Allen bolts are

Designed for shock load
Self locking bolts
Provided with hexagonal depression in head
Used in aircraft application

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