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Machine Design

Machine Design
The material generally used for aircraft components is

Aluminium
Mild steel
Stainless steel
High speed steel

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Machine Design
Silver based solder is used for

Fusion welding
Brazing
Soft soldering
Flaring

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Machine Design
The ultimate strength of steel in tension in comparison to shear is in the ratio of

0.042361111111111
0.12638888888889
0.085416666666667
0.084027777777778

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Machine Design
A metal pipe of 1 m diameter contains a fluid having a pressure of 1 N/mm². If the permissible tensile stress in the metal is 20 N/mm², then the thickness of the metal required for making the pipe will be

25 mm
10 mm
15 mm
5 mm

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Machine Design
The smallest diameter of an external or internal screw thread is known as

None of these
Pitch diameter
Major diameter
Minor diameter

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Machine Design
The design calculations for members subject to fluctuating loads with the same factor of safety, yield the most conservative estimates when using

Goodman relation
Soderberg relation
Gerber relation
None of these

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