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Machine Design

Machine Design
A single strap butt joint is always in __________ shear.

Triple share
Double
None of these
Single

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

Nil or lightest
Maximum
Any one of the above
Average

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Machine Design
In designing thick cylinders, the equation used is

All of these
Lame's equation
Birnie's equation
Clavarinos' equation

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Machine Design
The suitable material for belt in agricultural machinery is

Balata gum
Rubber
Cotton duck
Leather

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Machine Design
A closely coiled helical spring is acted upon by an axial force. The maximum shear stress developed in the spring is τ. The half of the length of the spring if cut off and the remaining spring is acted upon by the same axial force. The maximum shear stress in the spring in new condition will be

τ
2 τ
τ/2
4 τ

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Machine Design
When a shaft is subjected to combined twisting moment (T) and bending moment (M), then the equivalent twisting moment is equal to

√(M² + T²)
(1/2) × √(M² + T²)
(1/2) × [M + √(M² + T²)]
M + √(M² + T²)

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