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Machine Design

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

360°
180°
120°
270°

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Machine Design
The usual proportion for the width of key is (where d = Diameter of shaft or diameter of hole in the hub)

d/6
d/8
d/4
d/2

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Machine Design
When two non-parallel or intersecting but coplanar shafts are connected by gears, the arrangement is known as,

Bevel gearing
Worm gearing
Helical gearing
None of these

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Machine Design
In order to remove internal stresses produced by hardening the steel, the process usually adopted is

Annealing
Spheroidizing
Tempering
Normalizing

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Machine Design
In designing a sleeve coupling, outer diameter of the sleeve is taken as (where d = Diameter of the shaft)

3.5d
2d + 20 mm
2d + 13 mm
d + 17 mm

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Machine Design
Two shafts of the same length and material are joined in series. If the ratio of their diameters is 2, then the ratio of their angles of twist will be

4
16
2
8

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MORE MCQ ON Machine Design

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