# Gears Pulley Drives Sprockets Practice Problems .docx -...

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Activity 1.1.5 Gears, Pulley Drives, and Sprockets Practice Problems Procedure Answer the following questions regarding gear, pulley, and sprocket systems. Each question requires proper illustration and annotation including labeling of forces, distances, direction, and unknown values. Illustrations should consist of basic top view assembly sketches rather than realistic pictorials. Be sure to document all solution steps and proper units. Remember: counted teeth have infinite digits, and assume all other measurements contain three (3) significant digits. All problem calculations should assume ideal conditions and no friction loss. Gears A simple gear train is composed of three gears. Gear A is the driver and has 8 teeth, gear B has 24 teeth, and gear C has 16 teeth. 1. Sketch and annotate the gear train described above. 2. If the output is at C, what is the gear ratio? Formula Substitute / Solve Final Answer N(out) / N(in) 16/8 2 Project Lead The Way, Inc.

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