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Machine Design

Machine Design
The radial distance of a tooth from the pitch circle to the top of the tooth is called

Dedendum
Working depth
Addendum
Clearance

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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
Two shafts A and B are made of the same material. The diameter of shaft A is twice as that of shaft B. The power transmitted by the shaft A will be __________ of shaft B.

Eight times
Four times
Twice
Sixteen times

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Machine Design
Rankine's theory is used for

Brittle materials
Plastic materials
Ductile materials
Elastic materials

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Machine Design
The ratio of circumferential stress to longitudinal stress in a thin cylinder subjected to an internal pressure is

1
4
43832
2

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Machine Design
The ball bearings are, usually, made from

Low carbon steel
High carbon steel
High speed steel
Medium carbon steel

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