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Machine Design

Machine Design
The efficiency of a riveted joint is equal to

Least of Pt, Ps and Pc/P
Pt /P
Pc /P
Ps /P

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Machine Design
The face angle of a bevel gear is equal to

Pitch angle - addendum angle
Pitch angle + dedendum angle
Pitch angle + addendum angle
Pitch angle - dedendum angle

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

Muff coupling
Compression coupling
All of these
Flange coupling

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Machine Design
The draw of cotter need not exceed

20 mm
10 mm
3 mm
5 mm

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Machine Design
The property of a material which enables it to resist fracture due to high impact loads is known as

Toughness
Strength
Elasticity
Endurance

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Machine Design
If p = bearing pressure on projected bearing area, z = absolute viscosity of lubricant, and N = speed of journal, then the bearing characteristic number is given by

Z/pN
N/Zp
ZN/p
p/ZN

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