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Machine Design

Machine Design
The standard length of the shaft is

All of these
7 m
5 m
6 m

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Machine Design
The efficiency of a riveted joint is equal to

Pt /P
Least of Pt, Ps and Pc/P
Ps /P
Pc /P

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Machine Design
The sleeve or muff coupling is designed as a

Dun cylinder
Solid shaft
Hollow shaft
Thick cylinder

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Machine Design
The resistance to fatigue of a material is measured by

Ultimate tensile strength
Endurance limit
Elastic limit
Young's modulus

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Machine Design
The notch angle of the Izod impact test specimen is

20°
45°
10°
30°

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Machine Design
For hardening alloy steels and high speed steels, they are heated to

700 to 900°C
1300 to 1500°C
1100 to 1300°C
500 to 600°C

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