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Machine Design

Machine Design
In a full journal bearing, the angle of contact of the bearing with the journal is

360°
180°
270°
120°

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Machine Design
The rocker arms in internal combustion engines are of__________.

Third type levers
None of these
Second type levers
First type levers

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Machine Design
The constant factor in case of R10 series of preferred numbers is

1.58
1.26
1.12
1.06

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Machine Design
In cyclic loading, stress concentration is more serious in

Elastic materials
Ductile materials
Brittle as well as ductile materials
Brittle materials

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Machine Design
Deep groove ball bearings are used for

Heavy thrust load only
Small angular displacement of shafts
Combined thrust and radial loads at high speed
Radial load at high speed

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Machine Design
The washer is generally specified by its

Mean diameter
Hole diameter
Outer diameter
Thickness

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