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Machine Design

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

180°
120°
270°
360°

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Machine Design
The value of Lewis form factor used in design of gears is

Independent of size of teeth
Dependent on system of teeth
Dependent on number of teeth of a gear
All of these

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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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Machine Design
An elastic bar is fixed at the upper end and loaded at the lower end by a falling weight. The shock load produced can be reduced by

Decreasing the modulus of elasticity of the bar
Decreasing the cross-sectional area of the bar
All of these
Increasing the length of bar

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Machine Design
Antifriction bearings are

Hydrodynamic bearings
None of these
Thin lubricated bearings
Sleeve bearings

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Machine Design
The crest diameter of a screw thread is same as

Major diameter
Minor diameter
Pitch diameter
Core diameter

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