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Machine Design

Machine Design
The minimum number of teeth on the pinion which will mesh with any gear without interference for 20° full depth involute teeth will be

12
18
24
14

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Machine Design
According to I.B.R., the distance between the rows of rivets, for equal number of rivets in more than one row for lap joint or butt joint (chain riveting) shall not be less than

2.5 d
d
2 d
1.5 d

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

None of these
Bolt
Stud
Tap bolt

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Machine Design
Oil in journal bearing should be applied at the point where load is

Any one of the above
Nil or lightest
Maximum
Average

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Machine Design
An open coiled helical compression spring 'A' of mean diameter 50 mm is subjected to an axial load ‘W’. Another spring 'B' of mean diameter 25 mm is similar to spring 'A' in all respects. The deflection of spring 'B' will be __________ as compared to spring 'A'.

One-eighth
Double
One-half
One-fourth

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Machine Design
Rivets are generally specified by

Diameter of head
Length of rivet
Nominal diameter
Thickness of plates to be riveted

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