Machine Design
The designation M 33 × 2 of a bolt means

Metric threads with cross-section of 33 mm
Metric threads of 33 numbers in 2 cm
Metric threads of 33 mm outside diameter and 2 mm pitch
Bolt of 33 mm nominal diameter having 2 threads per cm

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Machine Design
Form coefficient of spring is

Concerned with strength of wire of spring
Ratio of coil diameter to wire diameter
Load required to produce unit deflection
Its capability of storing energy

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Machine Design
When the shaft rotates in anticlockwise direction at slow speed in a bearing, it will

Move towards right of the bearing making no metal to metal contact
Move towards left of the bearing making metal to metal contact
Move towards right of the bearing making the metal to metal contact
Have contact at the bottom most of the bearing

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