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Machine Design

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

Equal to
0.5 times
Double
2 times

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Machine Design
In cylindrical cams, the follower moves

In a direction perpendicular to the cam axis
In a direction parallel to the cam axis
In any direction irrespective of cam axis
Along the cam axis

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Machine Design
The relation between the pitch of the chain (p) and pitch circle diameter of the sprocket (D) is given by (where T = Number of teeth on the sprocket)

p = D sin (120°/T)
p = D sin (90°/T)
p = D sin (360°/T)
p = D sin (180°/T)

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Machine Design
In the assembly of pulley, key and shaft

Key is made the strongest
Pulley is made the weakest
Key is made the weakest
All the three are designed for equal strength

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Machine Design
Belt slip may occur due to

Loose belt
Heavy load
Driving pulley too small
All of these

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Machine Design
When an open coiled helical compression spring is subjected to an axial compressive load, the maximum shear stress induced in the wire is (where D = Mean diameter of the spring coil, d = Diameter of the spring wire, K = Wahl's stress factor, and W = Axial compressive load on the spring)

(8WD/ πd3) × K
(4WD/ πd3) × K
(WD/ πd3) × K
(2WD/ πd3) × K

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