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Machine Design

Machine Design
The efficiency of a riveted joint is equal to

Least of Pt, Ps and Pc/P
Pt /P
Pc /P
Ps /P

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Machine Design
If a spring is cut down into two springs, the stiffness of cut springs will be

Half
Same
Double
None of these

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Machine Design
A leaf spring in automobiles is used

To apply forces
To measure forces
To store strain energy
To absorb shocks

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Machine Design
If a bearing is designated by the number 305, it means that the bearing is of

Medium series whose bore is 5 mm
Light series whose bore is 25 mm
Medium series whose bore is 25 mm
Light series whose bore is 5 mm

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Machine Design
According to Indian standard specifications, a Grey cast iron designated by 'FG 200' means that the

Maximum compressive strength is 200 N/mm²
Carbon content is 2%
Maximum shear strength is 200 N/mm²
Minimum tensile strength is 200 N/mm²

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

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