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)

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)

(WD/ πd3) × K

(2WD/ πd3) × K

(8WD/ πd3) × K

(4WD/ πd3) × K

(WD/ πd3) × K

(2WD/ πd3) × K

(8WD/ πd3) × K

(4WD/ πd3) × K

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Machine Design
The velocity of sliding __________ the distance of the point of contact from the pitch point.

Is equal to cos φ multiplied by

Is inversely proportional to

Does not depend upon

Is directly proportional to

Is equal to cos φ multiplied by

Is inversely proportional to

Does not depend upon

Is directly proportional to

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Machine Design
A coupling used to connect two perfectly aligned shafts, is

Muff coupling

All of these

Flange coupling

Compression coupling

Muff coupling

All of these

Flange coupling

Compression coupling

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Machine Design
A tapered key which fits in a key way in the hub and the bottom of which is shaped to fit the curved surface of the shaft, is known as,

Hollow saddle key

Soft key

None of these

Hollow key

Hollow saddle key

Soft key

None of these

Hollow key

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Machine Design
The bearings of heavy series have capacity __________ over the medium series.

20 to 30%

40 to 50%

30 to 40%

10 to 20%

20 to 30%

40 to 50%

30 to 40%

10 to 20%

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Machine Design
The function of the washer is to

Fill up the axial gap

Provide cushioning effect

Provide bearing area

Absorb shocks and vibrations

Fill up the axial gap

Provide cushioning effect

Provide bearing area

Absorb shocks and vibrations

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Machine Design

Machine Design The velocity of sliding __________ the distance of the point of contact from the pitch point.

Machine Design A coupling used to connect two perfectly aligned shafts, is

Machine Design A tapered key which fits in a key way in the hub and the bottom of which is shaped to fit the curved surface of the shaft, is known as,

Machine Design The bearings of heavy series have capacity __________ over the medium series.

Machine Design The function of the washer is to

Machine Design
The velocity of sliding __________ the distance of the point of contact from the pitch point.

Machine Design
A coupling used to connect two perfectly aligned shafts, is

Machine Design
A tapered key which fits in a key way in the hub and the bottom of which is shaped to fit the curved surface of the shaft, is known as,

Machine Design
The bearings of heavy series have capacity __________ over the medium series.

Machine Design
The function of the washer is to