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Machine Design

Machine Design
Euler’s formula for a mild steel column is not valid if the slenderness ratio is

120
100
60
90

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Machine Design
The endurance or fatigue limit is defined as the maximum value of the stress which a polished standard specimen can withstand without failure, for infinite number of cycles, when subjected to

Dynamic load
Static load
Static as well as dynamic load
Completely reversed load

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Machine Design
The ratio of pitch circle diameter in millimeters to the number of teeth, is called

Circular pitch
None of these
Diametral pitch
Module

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Machine Design
A pressure vessel is said to be a thick shell, if the ratio of wall thickness to its diameter is

None of these
Greater than 1/10
Less than 1/10
Equal to 1/10

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Machine Design
The helix angle for double helical gears may be made up to

45°
75°
60°
90°

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Machine Design
In a butt welded joint, the size of weld is __________ the throat of weld.

0.5 times
Double
2 times
Equal to

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