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Machine Design

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

Castle nut
Any one of the above
Hexagonal nut
Slotted nut

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Machine Design
Whether any core is required in wire ropes

Yes
Sometimes
No
Rarely

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Machine Design
The ratio of belt tensions (p1/p2) considering centrifugal force in flat belt is given byWhere m = mass of belt per meter (kg/m)v = belt velocity (m/s)f = coefficient of frictiona = angle of wrap (radians)

(P1 - mv²)/ (P2 - mv²) = e–ᶠα
P1 / P2 = e–ᶠα
P1 / P2 = eᶠα
(P1 - mv²)/ (P2 - mv²) = eᶠα

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Machine Design
A locking device extensively used in marine type connecting rod ends is a

Sawn nut
Jam nut
Ring nut
Castle nut

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Machine Design
A connecting rod is designed as a

Long column
All of these
Short column
Strut

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Machine Design
A pressure vessel is said to be a thick shell, if the ratio of wall thickness to its diameter is

Equal to 1/10
Greater than 1/10
Less than 1/10
None of these

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