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Machine Design

Machine Design
The usual proportion for the width of key is (where d = Diameter of shaft or diameter of hole in the hub)

d/4
d/2
d/8
d/6

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Machine Design
In most machine members, the damping capacity of the material should be

High
Low
Zero
Could be anything

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Machine Design
The process extensively used for making bolts and nuts is

Cold heading
Cold peening
Extrusion
Hot piercing

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Machine Design
The maximum efficiency of a square threaded screw is

(1 - sinφ)/ (1 + cosφ)
(1 + cosφ)/ (1 - sinφ)
(1 - sinφ)/ (1 + sinφ)
(1 + sinφ)/ (1 - sinφ)

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Machine Design
According to Indian standard specifications, 100 H6/g5 means that the

Actual size is 100 mm
None of these
Basic size is 100 mm
Difference between the actual size and basic size is 100 mm

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Machine Design
The steel pulleys are __________ in weight than cast iron pulleys of the same capacity.

Moderate
Lighter
None of these
Heavier

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