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Machine Design

Machine Design
Oil in journal bearing should be applied at the point where load is

Any one of the above
Average
Maximum
Nil or lightest

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Machine Design
In the levers of first type, the mechanical advantage is ________ one.

None of these
More than
Equal to
Less than

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Machine Design
The permissible stress for carbon steel under static loading is generally taken as

3000-4000 kg/cm²
7500-10,000 kg/cm²
4000-4500 kg/cm²
2000-3000 kg/m²

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Machine Design
In a turnbuckle, if one of the rods has left hand threads, then the other rod will have

Right hand threads
Multiple threads
Left hand threads
Pointed threads

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Machine Design
The velocity factor for precision metallic gears cut with high accuracy and operating at velocities up to 20 m/s is equal to

4.5/ (4.5 + v)
6/ (6 + v)
0.75/ (0.75 + √v)
3/ (3 + v)

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Machine Design
The difference between the tooth space and the tooth thickness as measured on the pitch circle, is called

Working depth
Clearance
Backlash
Face width

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