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Machine Design

Machine Design
In designing a flange coupling, the pitch circle diameter of bolts is taken as (where d = Diameter of the shaft)

2 d
3 d
5 d
4 d

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Machine Design
Which of the following statement is correct for gears?

The addendum is less than dedendum
All of these
The pitch circle diameter is equal to the product of module and number of teeth
The pitch circle is always greater than the base circle

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Machine Design
Aircraft body is usually fabricated by

Riveting
Pre-casting
Casting
Welding

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Machine Design
Two shafts A and B are made of the same material. The diameter of shaft A is twice as that of shaft B. The power transmitted by the shaft A will be __________ of shaft B.

Twice
Sixteen times
Eight times
Four times

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Machine Design
The tension on the slack side of the belt is __________ the tension on the tight side of the belt.

Less than
Equal to
None of these
Greater than

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Machine Design
A feather key is generally

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

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