Question 1 of 270705eccefa4bacbc34ba4d485c5

When energizing a DC propulsion motor using "local override manual control", what statement best describes how the variable rheostat should be turned?

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Question 1 of 27070
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When energizing a DC propulsion motor using "local override manual control", what statement best describes how the variable rheostat should be turned?

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🔍 Key Concepts

• DC propulsion motor starting characteristics (high inrush current at startup) • Purpose of a variable rheostat in motor control (controlling current and speed during start-up) • Risks of sudden full-voltage application to a stopped DC motor

💭 Think About

• What happens to current draw if you apply too little resistance too quickly to a stationary DC motor? • Why might a procedure emphasize getting the motor just started turning rather than immediately going to a high-speed setting? • Which choice best reflects a controlled, protective way to start heavy machinery instead of a rapid, aggressive one?

✅ Before You Answer

• Compare which options involve rapid large changes in rheostat position versus gradual or minimal changes. • Identify which choice focuses on just initiating rotation rather than jumping to high speed. • Eliminate any option that would clearly cause maximum current surge into a stopped DC motor.