DC Motors MCQs
Practice free DC Motors multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 313 questions — no login required.
Question 235easy
Which of the following methods is most economical for finding the no-load losses of a large D.C. shunt motor?
Question 236easy
In a D.C. motor constant torque is produced due to
Question 237easy
A D.C. series motor, as compared to shunt and compound motors, has the highest torque at the start because of its comparatively
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Question 238easy
Which of the following motors, on removal of load, will run at the highest speed?
Question 239easy
The mechanical power developed by a D.C. motor is equal to
Question 240easy
The variable resistor shunting the field of a D.C. series motor is called a
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Question 241easy
The series parallel system of speed control of D.C. series motors widely used in traction work gives a speed range of about
Question 242easy
If conditions for maximum power for a D.C. motor are established, the efficiency of the motor will be
Question 243easy
In which of the following tests only one motor is required?