1. . A stepping motor is a ____________ device.
(A) Mechanical
(B) Electrical
(C) Analogue
(D) Incremental
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-analogue
3. . The rotor of a stepper motor has no
(A) Windings
(B) Commutator
(C) Brushes
(D) All of the mentioned
4. . What is the step angle of a permanent-magnet stepper motor having 8 stator poles and 4 rotor poles?
(A) 60º
(B) 45º
(C) 30º
(D) 15º
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 current
6. . The rotor of a stepper motor has no
(A) Windings
(B) Commutator
(C) Brushes
(D) All of the mentioned
7. . If a hybrid stepper motor has a rotor pitch of 36º and a step angle of 9º, the number of its phases must be
(A) 4
(B) 2
(C) 3
(D) 6
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 above
9. . How does a Stepper Motor move?
(A) Electrical Pulse
(B) Continuous Applied Voltage
(C) Alternates from A and B
(D) None of these
10. . Which of the following is not a type of stepper motor?
(A) Variable Reluctance
(B) Hybrid
(C) Magnetic
(D) Lead-Screw
11. . Which of the following is not a component of a stepper motor?
(A) Windings
(B) Rotor and Stator
(C) Commutator
(D) Brush
12. . Which of the following is NOT an advantage of stepper motors?
(A) Cost-efficient
(B) Maintenance-free
(C) No feedback
(D) More complex circuitry
13. . With a stator having 8 teeth and a rotor having 6 teeth, what step angle will an application be able to achieve?
(A) 15°
(B) 51°
(C) 20°
(D) 105°
14. . How does a Stepper Motor move?
(A) Electrical Pulse
(B) Continuous Applied Voltage
(C) Alternates from A and B
(D) None of these