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Machine Design

Machine Design
A rivet is specified by

Shank diameter
Length of rivet
Length of tail
Type of head

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Machine Design
A shaft is subjected to fluctuating loads for which the normal torque (T) and bending moment (M) are 1000 N-m and 500 N-m respectively. If the combined shock and fatigue factor for bending is 1.5 and combined shock and fatigue factor for torsion is 2, then the equivalent twisting moment for the shaft is

2050 N-m
2136 N-m
2100 N-m
2000 N-m

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Machine Design
Which process will increase the fatigue duration of parts?

Electroplating
Shot-peening
De-carburisation
Finishing and polishing

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Machine Design
The washer is generally specified by its

Thickness
Outer diameter
Mean diameter
Hole diameter

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Machine Design
The surface finish factor for a mirror polished material is

0.45
0.65
0.85
1

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Machine Design
The design of the pressure vessel is based on

Longitudinal stress
Longitudinal and hoop stress
None of these
Hoop stress

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