Machine Design
An open coiled helical compression spring 'A' of mean diameter 50 mm is subjected to an axial load ‘W’. Another spring 'B' of mean diameter 25 mm is similar to spring 'A' in all respects. The deflection of spring 'B' will be __________ as compared to spring 'A'.

Double
One-fourth
One-half
One-eighth

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Machine Design
A woodruff key is

All of these
Fitted in pairs at right angles
Capable of tilting in a recess milled out in the shaft
A tapered key with head at one end

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