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Machine Design

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 shearing stresses in the inner face as compared to outer face of the wire in a heavy close coiled spring is

Equal
Larger/smaller depending on diameter of spring coil
Smaller
Larger

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Machine Design
A cotter joint is used to connect two __________ rods.

Parallel
Co-axial
Perpendicular
None of these

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Machine Design
For a square key made of mild steel, the shear and crushing strength are related as

None of these
Shear strength is less than crushing strength
Shear strength is equal to crushing strength
Shear strength is greater than crushing strength

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Machine Design
Eye bolts are used for

Transmission of power
Lifting and transportation of machines and cubicles
Absorbing shock and vibrations
Foundation purposes

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Machine Design
If T is the actual number of teeth on a helical gear and φ is the helix angle for the teeth, then formative number of teeth is written as

T sec³φ
T/sec³φ
T cosecφ
T sec²φ

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