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Machine Design

Machine Design
The diameter of knuckle pin in a knuckle joint is usually taken as (where d = Diameter of the rod)

1.2 d
d
0.5 d
0.8 d

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Machine Design
When a bolt and nut is made of mild steel, then the effective height of nut is made equal to (where d = Nominal diameter of bolt)

1.25 d
d
0.75 d
0.5 d

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Machine Design
For applications involving high stresses in one direction only the following type of thread would be best suited

Buttress thread
Acme thread
ISO metric thread
Square thread

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Machine Design
The process which improves the machinability of steels, but lowers the hardness and tensile strength is

Normalising
Spheroidising
Full annealing
Process annealing

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Machine Design
The difference between the tooth space and the tooth thickness as measured on the pitch circle, is called

Clearance
Working depth
Backlash
Face width

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Machine Design
A coupling used to connect two perfectly aligned shafts, is

All of these
Compression coupling
Flange coupling
Muff coupling

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