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Machine Design

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

Same
Half
None of these
Double

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Machine Design
The draw of cotter should not be more than

3 mm
8 mm
6 mm
12 mm

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Machine Design
The stiffness of a closely coiled helical spring subjected to an axial load W is equal to (where G = Modulus of rigidity, and n = Number of active coils)

Gd⁴/ 4D3n
Gd⁴/ 8D²n
Gd3/ 8D3n
Gd⁴/ 8D3n

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Machine Design
According to Indian standard specifications, 100 H6/g5 means that the

Difference between the actual size and basic size is 100 mm
Basic size is 100 mm
Actual size is 100 mm
None of these

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Machine Design
The shock resistance of steel is increased by adding

Chromium
Nickel and chromium
Nickel
Cobalt and molybdenum

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Machine Design
A type of brake commonly used in motor cars is a

Band and block brake
Band brake
Internal expanding brake
Shoe brake

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