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Machine Design

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

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

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

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

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Machine Design
A screw is said to be a self locking screw, if its efficiency is

None of these
More than 50%
Equal to 50%
Less than 50%

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Machine Design
A connecting rod is designed as a

Short column
Long column
Strut
All of these

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Machine Design
The suitable material for belt used in flour mill is

Leather
Canvas or cotton duck
Balata gum
Rubber

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Machine Design
A universal coupling is used to connect two shafts

Which are perfectly aligned
Whose axes intersect at a small angle
Have lateral misalignment
Which are not in exact alignment

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