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Machine Design

Machine Design
The material commonly used for machine tool bodies is

Aluminium
Mild steel
Brass
Cast iron

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Machine Design
Which of the following is not correct procedure to increase the fatigue limit?

Surface decarburisation
Under stressing
Cold working
Shot peening

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Machine Design
The constant factor in case of R10 series of preferred numbers is

1.58
1.26
1.12
1.06

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Machine Design
In designing a connecting rod, it is considered like __________ for buckling about Y-axis.

Both ends hinged
One end fixed and the other end hinged
Both ends fixed
One end fixed and the other end free

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Machine Design
A localized compressive stress at the area of contact between two members is known as

Bending stress
Tensile stress
Shear stress
Bearing stress

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Machine Design
If the centre distance of the mating gears having involute teeth is increased, then the pressure angle

None of these
Decreases
Remains unchanged
Increases

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