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Machine Design

Machine Design
The diameter of knuckle pin in a knuckle joint is usually taken as (where d = Diameter of the rod)

0.5 d
0.8 d
1.2 d
d

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Machine Design
For a bevel gear having the pitch angle θ, the ratio of formative number of teeth (TE) to actual number of teeth (T) is

1/cosθ
1/sinθ
sinθ cosθ
1/tanθ

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Machine Design
The ball bearings are provided with a cage

To reduce friction
To maintain the balls at a fixed distance apart
To facilitate slipping of balls
To prevent the lubricant from flowing out

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Machine Design
The strap end of a connecting rod of steam engine is joined by

Gib of cotter joint
Spigot socket cotter joint
Sleeve and cotter joint
Knuckle joint

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Machine Design
The function of cutting oil when threading a pipe is to

Help removes chips
Provide cooling action
All of these
Lubricate the dies

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Machine Design
The diameter of the rivet hole is usually __________ the nominal diameter of the rivet.

More than
Equal to
None of these
Less than

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