If the driven pulley pitch diameter is twice the driver, the pulley ratio is

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Multiple Choice

If the driven pulley pitch diameter is twice the driver, the pulley ratio is

Explanation:
Pulley ratio is the driven pulley pitch diameter divided by the driver pulley pitch diameter. If the driven pulley is twice the size of the driver, that ratio is 2. In belt drives, this diameter ratio also means the driven speed is half the driver speed (n2 = n1 × D1/D2). The other numbers would correspond to different size relationships: 0.5 would mean the driven is half the driver, 1 would be equal sizes, and 1.5 would mean the driven is 1.5 times the driver.

Pulley ratio is the driven pulley pitch diameter divided by the driver pulley pitch diameter. If the driven pulley is twice the size of the driver, that ratio is 2. In belt drives, this diameter ratio also means the driven speed is half the driver speed (n2 = n1 × D1/D2). The other numbers would correspond to different size relationships: 0.5 would mean the driven is half the driver, 1 would be equal sizes, and 1.5 would mean the driven is 1.5 times the driver.

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