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Machine Design

Machine Design
Guest's theory is used for

Ductile materials
Elastic materials
Brittle materials
Plastic materials

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Machine Design
The minimum number of teeth on the pinion which will mesh with any gear without interference for 20° full depth involute teeth will be

12
24
18
14

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Machine Design
If T₁ and T₂ are the tensions on the tight and slack sides of the belt respectively, and Tc is the centrifugal tension, then initial tension in the belt is equal to

T₁ + T₂ + Tc
T₁ - T₂ + Tc
(T₁ - T₂ + Tc)/2
(T₁ + T₂ + Tc)/2

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Machine Design
In a flange coupling, the flanges are coupled together by means of

None of these
Headless taper bolts
Studs
Bolts and nuts

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Machine Design
In order to withstand resistance to wear, the best profile of gear is

20° involute stub tooth
14½° stub tooth
14½° full depth involute tooth
20° full depth involute tooth

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Machine Design
A steel containing 0.8% carbon is known as

Eutectoid steel
Hypereutectoid steel
Hypo-eutectoid steel
None of these

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