Aptitude Test Tuesday – Gears
Every Tuesday I post a common question you might encounter during your aptitude test. This week we will be covering a gear example.
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If the configuration in this figure is released from rest, the drum will:
- Rotate Counter Clockwise
- Stay at rest
- Rotate Clockwise
- Cannot Be Determined
The torque resultant for the two weights is:
12 x 150 clockwise = 1800
5 x 250 counter clockwise = 1250, so the gear will rotate clockwise as a result of larger torque.