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Machine Design

Machine Design
The wear load should be __________ the dynamic load.

Equal to
Less than
Greater than
None of these

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Machine Design
Stress concentration in cyclic loading is more serious in

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

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Machine Design
A V-belt designated as B 4430 LP has

4430 mm as diameter of large pulley
4430 mm as nominal pitch length
4430 mm as centre distance between pulleys
4430 mm as diameter of small pulley

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Machine Design
The expression 0.175 - 0.841/T is the Lewis form factor for

14½° composite and full depth involute system
None of these
20° full depth involute system
20° stub system

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Machine Design
In designing a connecting rod, it is considered like __________ for buckling about X-axis.

One end fixed and the other end free
Both ends fixed
Both ends hinged
One end fixed and the other end hinged

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Machine Design
The allowable static stress for steel gears is approximately __________ of the ultimate tensile stress.

One-fourth
One-third
One-half
Double

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