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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°
120°
270°

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Machine Design
The static tooth load should be __________ the dynamic load.

None of these
Equal to
Less than
Greater than

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Machine Design
The resistance to fatigue of a material is measured by

Young's modulus
Ultimate tensile strength
Elastic limit
Endurance limit

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Machine Design
The rolling contact bearings are known as

Plastic bearings
Thin lubricated bearings
Antifriction bearings
Thick lubricated bearings

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Machine Design
A shaft is subjected to fluctuating loads for which the normal torque (T) and bending moment (M) are 1000 N-m and 500 N-m respectively. If the combined shock and fatigue factor for bending is 1.5 and combined shock and fatigue factor for torsion is 2, then the equivalent twisting moment for the shaft is

2050 N-m
2136 N-m
2100 N-m
2000 N-m

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

Flange coupling
Muff coupling
Compression coupling
All of these

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