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Machine Design

Machine Design
In Vickers hardness testing, the pyramid indentor apex is

122°
152°
40°
136°

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Machine Design
The shearing stresses in the inner face as compared to outer face of the wire in a heavy close coiled spring is

Larger/smaller depending on diameter of spring coil
Larger
Equal
Smaller

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Machine Design
The washer is generally specified by its

Outer diameter
Hole diameter
Mean diameter
Thickness

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

Flange coupling
Muff coupling
All of these
Compression coupling

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Machine Design
The cold working of metals is carried out __________ the recrystallization temperature.

Above
None of these
At
Below

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Machine Design
Residual stress in materials

Acts when external load is applied
Is independent of external loads
Is always harmful
Becomes zero when external load is removed

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