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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
Margin
Back pitch

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Machine Design
A feather key is generally

Tight in shaft and loose in hub
Loose in both shaft and hub
Loose in shaft and tight in hub
Tight in both shaft and hub

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Machine Design
Two shafts ‘A’ and ‘B’ under pure torsion are of identical length and identical weight and are made of the same material. The shaft ‘A’ is solid and the shaft ‘B’ is hollow. We can say that

Shaft A is better than shaft B
None of these
Shaft B is better than shaft A
Both the shafts are equally good

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Machine Design
The strap end of a connecting rod of steam engine is joined by

Knuckle joint
Sleeve and cotter joint
Spigot socket cotter joint
Gib of cotter joint

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Machine Design
In the levers of first type, the mechanical advantage is ________ one.

None of these
More than
Equal to
Less than

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Machine Design
If the size of a standard specimen for a fatigue testing machine is increased, the endurance limit for the material will

None of these
Increase
Decrease
Have same value as that of standard specimen

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