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Machine Design

Machine Design
Guest's theory is used for

Plastic materials
Elastic materials
Brittle materials
Ductile materials

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Machine Design
A steel containing up to 0.15% carbon is known as

Medium carbon steel
High carbon steel
Mild steel
Dead mild steel

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

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Machine Design
Which of the following is an anti-friction bearing?

Pedestal bearing
Needle bearing
Collar bearing
Journal bearing

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Machine Design
Lewis equation is applied

To weaker of the pinion or gear
To stronger of the pinion or gear
Only to the gear
Only to the pinion

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Machine Design
In a steam engine, the piston rod is usually connected to the cross-head by means of a

Knuckle joint
Oldham coupling
Universal joint
Cotter joint

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