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Machine Design

Machine Design
A transmission shaft includes

Counter shaft
Line shaft
All of these
Over head shaft

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Machine Design
A steel containing up to 0.15% carbon is known as

Dead mild steel
High carbon steel
Medium carbon steel
Mild steel

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Machine Design
An elastic bar is fixed at the upper end and loaded at the lower end by a falling weight. The shock load produced can be reduced by

Increasing the length of bar
All of these
Decreasing the cross-sectional area of the bar
Decreasing the modulus of elasticity of the bar

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Machine Design
If the centre distance of the mating gears having involute teeth is varied within limits, the velocity ratio

Remains unchanged
Decreases
None of these
Increases

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Machine Design
The strength of the unriveted plate (P) per pitch length is equal to

p.t.σt
p.d.σt
(p - d) t.σt
(p - d) σt

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Machine Design
A column is known as a long column if the slenderness ratio is

40
50
70
100

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