An apprentice millwright is installing a v-belt drive system. Belt tension should be checked by measuring deflection at the midpoint of the longest span. What is the correct procedure?
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A
Apply force equal to 10% of motor horsepower and measure deflection in millimeters
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B
Apply a specified force perpendicular to the belt span and measure deflection — typically 1/64 inch per inch of span
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C
Tension until the belt hums at the motor's operating frequency
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D
Tighten until slippage is eliminated under full load, then add 10%