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Machine Design

Machine Design
The included angle in unified of American National threads is

29°
55°
60°
47°

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Machine Design
In order to have smooth operation, the minimum number of teeth on the smaller sprocket, for moderate speeds, should be

15
21
17
25

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Machine Design
For high speed engines, the cam follower should move with

Simple harmonic motion
Cycloidal motion
Uniform velocity
Uniform acceleration and retardation

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Machine Design
In V-belt drive, belt touches

At bottom
Could touch anywhere
Both at bottom and sides
At sides only

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Machine Design
The width of the pulley should be __________ width of the belt.

Less than
None of these
Equal to
Greater than

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Machine Design
I.S. specifies following total number of grades of tolerances

20
16
22
18

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