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Machine Design

Machine Design
The most important dimension in the design of a nut is

Inside diameter
Outside diameter
Height
Pitch diameter

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Machine Design
In levers, leverage is the ratio of

Load arm to the effort arm
Effort arm to the load arm
Load lifted to the effort applied
Mechanical advantage to the velocity ratio

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Machine Design
Cast iron pipes are mainly used

For conveying steam
In water and sewage systems
In pressure lubrication systems on prime movers
All of these

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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

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

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Machine Design
A key way lowers

The ductility of the shaft
Both the strength and rigidity of the shaft
The rigidity of the shaft
The strength of the shaft

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Machine Design
A single strap butt joint is always in __________ shear.

Triple share
Single
Double
None of these

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