Chapter 4 STEPPER MOTORS MCQs 14 min Score: 0 Attempted: 0/14 Subscribe 1. . A stepping motor is a ____________ device. (A) Mechanical (B) Electrical (C) Analogue (D) IncrementalShow All Answers 2. . A stepper motor may be considered as a ____________ converter. (A) Dc to dc (B) Ac to ac (C) Dc to ac (D) Digital-to-analogueShow All Answers 3. . The rotor of a stepper motor has no (A) Windings (B) Commutator (C) Brushes (D) All of the mentionedShow All Answers 4. . What is the step angle of a permanent-magnet stepper motor having 8 stator poles and 4 rotor poles? (A) 60ยบ (B) 45ยบ (C) 30ยบ (D) 15ยบShow All Answers 5. . The rotational speed of a given stepper motor is determined solely by the (A) Shaft load (B) Step pulse frequency (C) Polarity of stator current (D) Magnitude of stator currentShow All Answers 6. . The rotor of a stepper motor has no (A) Windings (B) Commutator (C) Brushes (D) All of the mentionedShow All Answers 7. . If a hybrid stepper motor has a rotor pitch of 36ยบ and a step angle of 9ยบ, the number of its phases must be (A) 4 (B) 2 (C) 3 (D) 6Show All Answers 8. . What criteria are necessary to consider when selecting a stepper motor? (A) Mechanical Motion (B) Inertial Load (C) Speed Requirements (D) All of the aboveShow All Answers 9. . How does a Stepper Motor move? (A) Electrical Pulse (B) Continuous Applied Voltage (C) Alternates from A and B (D) None of theseShow All Answers 10. . Which of the following is not a type of stepper motor? (A) Variable Reluctance (B) Hybrid (C) Magnetic (D) Lead-ScrewShow All Answers 11. . Which of the following is not a component of a stepper motor? (A) Windings (B) Rotor and Stator (C) Commutator (D) BrushShow All Answers 12. . Which of the following is NOT an advantage of stepper motors? (A) Cost-efficient (B) Maintenance-free (C) No feedback (D) More complex circuitryShow All Answers 13. . With a stator having 8 teeth and a rotor having 6 teeth, what step angle will an application be able to achieve? (A) 15ยฐ (B) 51ยฐ (C) 20ยฐ (D) 105ยฐShow All Answers 14. . How does a Stepper Motor move? (A) Electrical Pulse (B) Continuous Applied Voltage (C) Alternates from A and B (D) None of theseShow All Answers