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Machine Design

Machine Design
The contact ratio for gears is

Less than one
None of these
Greater than one
Zero

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Machine Design
The ball bearings are, usually, made from

High speed steel
Medium carbon steel
Low carbon steel
High carbon steel

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Machine Design
The helix angle for double helical gears may be made up to

60°
45°
75°
90°

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Machine Design
Silver based solder is used for

Soft soldering
Brazing
Fusion welding
Flaring

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Machine Design
The expression 0.175 - 0.841/T is the Lewis form factor for

None of these
20° stub system
20° full depth involute system
14½° composite and full depth involute system

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Machine Design
A flange coupling is used to connect two shafts

Whose axes intersect at a small angle
Have lateral misalignment
Which are perfectly aligned
Which are not in exact alignment

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