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Machine Design

Machine Design
I.S. specifies following total number of grades of tolerances

16
20
22
18

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Machine Design
A steel containing 0.8% carbon is known as

Hypo-eutectoid steel
Eutectoid steel
None of these
Hypereutectoid steel

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Machine Design
In designing a sleeve coupling, length of the sleeve is taken as (where d = Diameter of the shaft)

d + 17 mm
2d + 13 mm
3.5 d
2d + 20 mm

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Machine Design
A connecting rod is designed as a

All of these
Long column
Strut
Short column

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Machine Design
The wear load should be __________ the dynamic load.

Equal to
Greater than
None of these
Less than

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Machine Design
The process which improves the machinability of steels, but lowers the hardness and tensile strength is

Spheroidising
Process annealing
Full annealing
Normalising

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