Motor Speed & Torque Self-Review Part 1 Name: Segment 1 1) The rotational speed

Question

Motor Speed & Torque Self-Review Part 1 Name: Segment 1 1) The rotational speed of a motor is measured in 2) The device that is most often used to measure motor speed is the 3) A tachometer determines motor shaft speed by counting the number of times a reflective tape on the motor shaft passes through its light. 4) One of the applications of measuring motor speed is to check for possible condition of an AC motor. 5) A handheld mechanical tachometer has a(n) system that converts the rotating motion of a shaft into a reading on a dial. 6) A tachometer (can/cannot) be used to check the performance of speed control Segment 2 1) is a measure of the turning effort caused by a force acting on a part that rotates. 2) The S.1. units of torque are 3) Torque is increased by either applying the force further from the or by increasing the force applied. 4) The on an electric motor is the amount of torque that the motor must generate at its shaft to overcome the resistance caused by the device that is driven 5) To turn a load, the electric motor must generate a torque that the torque requirements of the load.

Explanation / Answer

1. rotation per minute (RPM)

2. Tachometer

3. Optical Tachometer

4. breakdown condition

5. Electro mechnical system

6. Cannot

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