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Machine Design

Machine Design
The radial distance of a tooth from the pitch circle to the top of the tooth is called

Addendum
Working depth
Dedendum
Clearance

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Machine Design
Which of the following has threads at both ends?

Tap bolt
None of these
Bolt
Stud

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Machine Design
A double fillet welded joint with parallel fillet weld of length 'l' and leg 's' is subjected to a tensile force 'P'. Assuming uniform stress distribution, the shear stress in the weld is given by

2P/s.l
P/√2.s.l
√2P/s.l
P/2.s.l

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Machine Design
A closely coiled helical spring is acted upon by an axial force. The maximum shear stress developed in the spring is τ. The half of the length of the spring if cut off and the remaining spring is acted upon by the same axial force. The maximum shear stress in the spring in new condition will be

τ/2
2 τ
4 τ
τ

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Machine Design
In order to permit the thermal expansion/contraction of tubing, it should be

Flared
Crimped
Bent
Honed

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Machine Design
The taper on a rectangular sunk key is

1 in 48
1 in 100
1 in 32
1 in 16

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