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Machine Design

Machine Design
The ratio of circumferential stress to longitudinal stress in a thin cylinder subjected to an internal pressure is

2
1
4
43832

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Machine Design
The maximum normal stress theory is used for

Ductile materials
Plastic materials
Brittle materials
Non-ferrous materials

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Machine Design
When the material of key and shaft is same, and the width of key is one-fourth of the diameter of shaft (d), then length of key will be

1.8 d
1.2 d
1.57 d
0.8 d

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Machine Design
The face angle of a bevel gear is equal to

Pitch angle + dedendum angle
Pitch angle - addendum angle
Pitch angle - dedendum angle
Pitch angle + addendum angle

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

2 times
Double
Equal to
0.5 times

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Machine Design
Which of the following statement is correct, for two shafts connected in parallel?

Torque in each shaft is the same
Angle of twist of each shaft is the same
Shear stress in each shaft is the same
Torsional stiffness of each shaft is the same

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