ANSWERS
View or print student's answers
Student's Selected Options vs Correct Answers - BMT0000326
Questions Student's Answers Correct Answers Marks
1.

An electrical subsystem is made up of

2.

Devices that operate in continuous rotating mode are known to be

3.

Devices that transform signals into different forms are known as

4.

Devices that produce forces mostly for linear motion drives, such as relays, solenoids (linear actuators), and electromagnets.

5.

A magnetic subsystem is made up of

6.

A mechanical subsystem is made up of

7. Force due to both electric and magnetic forces will influence the motion of charged particles
8. Electromagnetic forces determine all essential features of charged particle acceleration and transport
9. when an emf is induced in the same circuit in which the current is changing the effect is called
10. When the current flowing in one coil induces a voltage in an adjacent coil the effect is known as
11.

In a transformer, the primary and secondary windings are magnetically linked through the

12. The current that flows through the core of a tranformer is responsible for
13. The current that flows through the windings of a tranformer is responsible for
14. The losses in a tranformer due to the reversal of the magnetic molecules in the core are known as
15. In a coil, the voltage leads the current
16.

The current used by an electromechanical machine for actual work produces

17.

The current used in an electromechanical machine in its magnetic circuit produces

18. The total current used in an electromechanical devise is the resultant of the current that produces active power and that which produces reactive power
19.

When a transformer is operating at no load the current at the secondary is

20.

Transformers are usually cooled by
1. All the above
2. Continuous energy conversion equipment
3. Transducers
4. Force producing devices
5. All the above
6. All the above
7. TRUE
8. TRUE
9. Self-induction
10. Mutual-induction
11. Core
12. eddy current losses
13. copper losses
14. hysterisis current losses
15. FALSE
16. True power
17. Magnetic power
18. TRUE
19. Zero
20. Oil
1. Electric circuits such as windings
2. Continuous energy conversion equipment
3. Transducers
4. Force producing devices
5. Magnetic field in the magnetic cores and airgaps
6. Mechanically movable parts such as a plunger in a linear actuator and a rotor in a rotating electrical machine
7. TRUE
8. TRUE
9. Self-induction
10. Mutual-induction
11. Core
12. eddy current losses
13. copper losses
14. hysterisis current losses
15. TRUE
16. True power
17. Reactive power
18. TRUE
19. Zero
20. Oil
 15 of 20

Developed by Ebenezer Teigaga - RMU Exams Coordinator Tel:+233(0)267657365 Email: ebenezer.teigaga@rmu.edu.gh