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Machine Design

Machine Design
The steel pulleys are __________ in weight than cast iron pulleys of the same capacity.

Moderate
Lighter
None of these
Heavier

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Machine Design
Oil in journal bearing should be applied at the point where load is

Any one of the above
Maximum
Average
Nil or lightest

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

2
4
43832
1

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Machine Design
Stress concentration in cyclic loading is more serious in

Ductile materials
Depends on other factors
Brittle materials
Equally serious in both cases

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Machine Design
The rolling contact bearings are known as

Thin lubricated bearings
Thick lubricated bearings
Antifriction bearings
Plastic bearings

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Machine Design
The rated life of a bearing varies

Directly as load
Inversely as cube of load
Inversely as fourth power of load
Inversely as square of load

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