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Machine Design

Machine Design
A locking device extensively used in automobile industry is a

Sawn nut
Ring nut
Jam nut
Castle nut

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Machine Design
In order to obtain bolt of uniform strength

Increase shank diameter
Drill an axial hole through head up to threaded portion so that shank area is equal to root area of thread
Tighten die bolt properly
Increase its length

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Machine Design
The yield point in static loading is __________ as compared to fatigue loading.

Same
Higher
Lower
None of these

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Machine Design
The rolling contact bearings as compared to sliding contact bearings have

Small overall dimensions
All of these
Low starting and low running friction except at very high speeds
Accuracy of shaft alignment

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Machine Design
If the size of a standard specimen for a fatigue testing machine is increased, the endurance limit for the material will

None of these
Increase
Have same value as that of standard specimen
Decrease

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Machine Design
The maximum bending stress in a curved beam having symmetrical section always occur at the

Inside fiber
Neutral axis
Centroidal axis
Outside fiber

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