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Machine Design

Machine Design
The centre to centre distance between two consecutive rivets in a row, is called

Diagonal pitch
Pitch
Back pitch
Margin

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Machine Design
If threads on a bolt are left hand, threads on nut will be

Left hand with same pitch
Could be left or right hand
Right hand with fine pitch
Right hand with same pitch

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Machine Design
A key made from a cylindrical disc having segmental cross-section, is known as

Feather key
Woodruff key
Flat saddle key
Gib head key

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Machine Design
When an open coiled helical compression spring is subjected to an axial compressive load, the maximum shear stress induced in the wire is (where D = Mean diameter of the spring coil, d = Diameter of the spring wire, K = Wahl's stress factor, and W = Axial compressive load on the spring)

(2WD/ πd3) × K
(8WD/ πd3) × K
(WD/ πd3) × K
(4WD/ πd3) × K

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Machine Design
Maximum principal stress theory is applicable for

All of these
Ductile materials
Brittle materials
Elastic materials

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Machine Design
A crankshaft is a __________ shaft.

Machine
None of these
Transmission
Machine frame

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