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Machine Design

Machine Design
Aircraft body is usually fabricated by

Pre-casting
Welding
Casting
Riveting

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Machine Design
In order to remove internal stresses produced by hardening the steel, the process usually adopted is

Spheroidizing
Annealing
Tempering
Normalizing

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Machine Design
In the levers of third type, the mechanical advantage is __________ one.

Equal to
Less than
None of these
More than

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

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Machine Design
The design of the pressure vessel is based on

Hoop stress
Longitudinal and hoop stress
Longitudinal stress
None of these

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Machine Design
The V-belts are particularly suitable for __________ drives.

Both A and B
None of these
Long
Short

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