Multiple choice general knowledge science & technology

If two gears are transmitting power of 10 HP at 1000 RPM. Module of first is 4.5 then what the module of the second gear ?

  1. 10 / 2 x pi x 1000

  2. 4.5 x (10/(2 x pi x 1000)

  3. 4.5

  4. 1/4.5
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

For two gears to mesh properly and transmit power, they must have the same module (a parameter defining gear tooth size). The module is inversely related to the diametral pitch and is a fundamental design parameter. If two gears are in mesh, their modules must be identical regardless of the power transmitted or rotational speed. The power (10 HP) and speed (1000 RPM) are irrelevant for determining the module of the second gear.

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