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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
0.8 d
d
0.5 d

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Machine Design
An Involute pinion and gear are in mesh. If both have the same size of addendum, then there will be interference between the

Tip of the pinion and flank of gear
Tip of the gear and flank of pinion
Flanks of both gear and pinion
Tip of both gear and pinion

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Machine Design
The velocity factor for precision metallic gears cut with high accuracy and operating at velocities up to 20 m/s is equal to

3/ (3 + v)
0.75/ (0.75 + √v)
6/ (6 + v)
4.5/ (4.5 + v)

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Machine Design
The longitudinal joint in boilers is used to get the required

Diameter of boiler
Length and diameter of boiler
Length of boiler
Efficiency of boiler

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Machine Design
The most important dimension in the design of a nut is

Inside diameter
Outside diameter
Height
Pitch diameter

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Machine Design
In a marine flange coupling, the thickness of flange is taken as

d/4
d/2
d/3
3d/4

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MORE MCQ ON Machine Design

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