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Machine Design

Machine Design
The gears are termed as medium velocity gears, if their peripheral velocity is

1-3 m/s
30-50 m/s
15-30 m/s
3-15 m/s

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Machine Design
A transmission shaft includes

Over head shaft
Line shaft
All of these
Counter shaft

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Machine Design
A key made from a cylindrical disc having segmental cross-section, is known as

Gib head key
Woodruff key
Flat saddle key
Feather key

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Machine Design
A steel containing _________ 0.8% carbon is known as hypo-eutectoid steel.

Less than
Equal to
Greater than
None of these

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Machine Design
The taper on a rectangular sunk key is

1 in 16
1 in 100
1 in 48
1 in 32

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Machine Design
A long helical spring having a spring stiffness of 12 kN/m and number of turns 20, breaks into two parts with number of turns 10 each in both the parts. If the two parts are connected in series, then the softness of the resultant spring will be

30 kN/m
6 kN/m
12 kN/m
24 kN/m

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