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Machine Design

Machine Design
The rivet head used for boiler plate riveting is usually

Counter sunk head
Pan Head
Snap head
Conical head

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

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

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Machine Design
The expansion joint is mostly used for pipes which carry steam at __________ pressures.

High
Low
None of these
Medium

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Machine Design
Aircraft body is usually fabricated by

Casting
Welding
Pre-casting
Riveting

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Machine Design
The maximum bending stress in a curved beam having symmetrical section always occur at the

Inside fiber
Outside fiber
Centroidal axis
Neutral axis

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Machine Design
Taper usually provided on cotter is

1 in 24
1 in 40
1 in 5
1 in 10

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