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Machine Design

Machine Design
The cross-section of the arm of a bell crank lever is

I-section
Any one of these
Elliptical
Rectangular

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Machine Design
A transmission shaft includes

Line shaft
All of these
Over head shaft
Counter shaft

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

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

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Machine Design
The maximum normal stress theory is used for

Brittle materials
Plastic materials
Non-ferrous materials
Ductile materials

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Machine Design
Pick up wrong statement. Fatigue strength can be increased by

Grinding and lapping surface
Hot working
Shot peening
Cold working

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Machine Design
When two springs are in series (having stiffness K), the equivalent stiffness will be

K/4
K
2K
K/2

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MORE MCQ ON Machine Design

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