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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)

3 d
2 d
4 d
5 d

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Machine Design
Allen bolts are

Used in aircraft application
Designed for shock load
Provided with hexagonal depression in head
Self locking bolts

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Machine Design
The radial distance from the __________ to the clearance circle is called working depth.

Dedendum circle
None of these
Addendum circle
Pitch circle

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Machine Design
A double strap butt joint (with equal straps) is

Any one of these
Always in double shear
Either in single shear or double shear
Always in single shear

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Machine Design
I.S. specifies following total number of grades of tolerances

20
18
22
16

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Machine Design
Fabric belts are used in industrial applications because

They are unaffected by moisture and humidity
They can work at high temperature
They are cheap
None of these

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