DC Motors

Which of the following determines the direction of rotation of a hysteresis motor?

In a single-phase induction motor, the centrifugal switch is connected where?

What is the purpose of the running capacitor in a capacitor-start, capacitor-run motor?

Which of the following single-phase motors has the highest starting torque?

The starting winding of a single-phase motor is placed where?

What is the method used to vary the speed of a universal motor used in sewing machines?

Which of the following single-phase motors will operate at higher power factor?

What is the circuit connection of the main winding and starting winding of a single-phase motor?

In a shaded pole motor, the direction of rotation depends on which one?

The electrical fault in a motor normally occurs where?

What type of motor is used in a vacuum cleaner?

After the single-phase motor has started, its starting winding is disconnected. The motor will continue to run using which winding?

Which one is true about the comparison of the poles between the starting winding and the main winding of a single-phase induction motor?

What is the purpose of the shading coil in a shaded pole motor?

Which of the following single-phase motors is relatively free from mechanical and magnetic vibrations?

Which of the following motors is an interesting example of beneficially utilizing a phenomenon that is often considered undesirable?

Which of the following is an inherent characteristic of a single-phase induction motor?

For the same rating, the power factor of a single-phase motor is ____ that of a three-phase induction motor.

Which of the following single-phase motors is suitable for timing and control purposes?

Which motor is used to drive portable drills?