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Machine Design

Machine Design
The expansion joint is mostly used for pipes which carry steam at __________ pressures.

High
Medium
None of these
Low

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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)/2
(T₁ - T₂ + Tc)/2
T₁ - T₂ + Tc

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Machine Design
The deflection of a cantilever beam under load W is 8. If its width is halved, then the deflection under load W will be

44047
43869
44045
43929

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Machine Design
Which of the following screw thread is used for power transmission in one direction only?

Multiple threads
Acme threads
Square threads
Buttress threads

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Machine Design
The product of the diametral pitch and circular pitch is equal to

1
1/π
π
π × number of teeth

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

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

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