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Machine Design

Machine Design
The following type of nut is used with alien bolt

Hexagonal nut
Castle nut
Slotted nut
Any one of the above

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Machine Design
A thin spherical shell of internal diameter d is subjected to an internal pressure p. If V is the storage capacity of shell, then its diameter will be

(6V/ π)1/3
(6V/ π)3
(6V/ π)1/2
(6V/ π)2

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Machine Design
In a multiple V-belt drive, if one of the belts break, then

Only the broken belt is replaced
The broken belt need not to be replaced
The entire set of belts is replaced
The broken belt and the belt on either side of it, is replaced

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Machine Design
The cold working of metals is carried out __________ the recrystallization temperature.

Above
None of these
Below
At

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Machine Design
In order to withstand resistance to wear, the best profile of gear is

20° full depth involute tooth
14½° full depth involute tooth
20° involute stub tooth
14½° stub tooth

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Machine Design
The endurance limit of a material with finished surface in comparison to rough surface is

Less
More
More or less depending on quantum of load
Same

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