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Machine Design

Machine Design
Aircraft body is usually fabricated by

Pre-casting
Welding
Casting
Riveting

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Machine Design
A feather key is generally

Loose in shaft and tight in hub
Tight in shaft and loose in hub
Tight in both shaft and hub
Loose in both shaft and hub

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Machine Design
The shock absorbing capacity of a bolt may be increased by

Making the shank diameter equal to core diameter of thread
Increasing its shank diameter
Tightening the bolt properly
Decreasing its shank diameter

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Machine Design
The algebraic difference between the maximum limit and the basic size is called

Lower deviation
Mean deviation
Upper deviation
Actual deviation

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Machine Design
The form factor of a helical gear __________ with the increase in the helix angle.

Remains constant
Decreases
None of these
Increases

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Machine Design
Silver based solder is used for

Fusion welding
Flaring
Soft soldering
Brazing

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