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Machine Design

Machine Design
When a material is subjected to fatigue loading, the ratio of the endurance limit to the ultimate tensile strength is

0.5
0.65
0.35
0.2

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Machine Design
In a steam engine, the valve rod is connected to an eccentric rod by means of

Universal joint
Cotter joint
Knuckle joint
Flange coupling

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Machine Design
A taper key which fits half in the key way of the hub and half in the key way of shaft, is known as

Mitre gears
Crown Bevel gears
Angular bevel gears
Internal bevel gears

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Machine Design
The constant factor in case of R10 series of preferred numbers is

1.26
1.06
1.12
1.58

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

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

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

Sawn nut
Ring nut
Castle nut
Jam nut

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