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Machine Design

Machine Design
The groove angle of pulleys for V-belt is

340 to 360
More than 400
300 to 320
420 to 450

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Machine Design
The strength of a riveted joint is equal to

Tearing strength of plate (Pt)
Shearing strength of rivet (Ps)
Crushing strength of rivet (Pc)
Least value of Pt Ps and Pc

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Machine Design
In helical gears, the right hand helixes on one gear will mesh __________ helixes on the other gear.

Both A and B
Right hand
Left hand
None of these

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Machine Design
Factor of safety for fatigue loading is the ratio of

Elastic limit to the yield point
Endurance limit to the working stress
Young's modulus to the ultimate tensile strength
Elastic limit to the working stress

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Machine Design
In the assembly of pulley, key and shaft

Key is made the strongest
Pulley is made the weakest
Key is made the weakest
All the three are designed for equal strength

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

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

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