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Machine Design

Machine Design
The pitch of threads on a Jock nut in comparison to pitch of nut is

Finer
Same
Coarser
Very fine

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Machine Design
When carbon in the cast iron is principally in the form of graphite, the cast iron will be of

White colour
Grey colour
Yellow colour
Brown colour

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Machine Design
In skew bevel gearing, the axes of shafts are

Non-intersecting and non-parallel and the teeth are straight
None of these
Intersecting and the teeth are curved
Non-intersecting and nonparallel and the teeth are curved

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Machine Design
A sliding bearing which can support steady loads without any relative motion between the journal and the bearing, is called

Zero film bearing
Hydrostatic lubricated bearing
Boundary lubricated bearing
Hydrodynamic lubricated bearing

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Machine Design
The diameter of knuckle pin in a knuckle joint is usually taken as (where d = Diameter of the rod)

d
1.2 d
0.5 d
0.8 d

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Machine Design
A locking device extensively used in automobile industry is a

Sawn nut
Castle nut
Jam nut
Ring nut

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