Q2. a) Explain with the aid of a diagram, a controller utilizing proportional plus integral action. (6)
b) List out the Advantages and Disadvantages of electric propulsion system. (5)
c) Explain briefly what you know about “Pulse Width Modulation” and how it can be applied for propulsion control. (5)
Q1.a) Explain three methods of overcurrent protection for electrical circuit. (8)
b) Explain with aid of diagram, the meaning of the term inverse current time characteristic (8)
Q3.a) Sketch a labelled diagram of the power circuit for a star/ delta starter. (6)
b) Explain the sequences of operation of the circuit sketched in Q3 (a) (6)
c) State two advantages and two limitations of the star/delta starting (4)
Username or email address *Required
Password *Required
Note: Entering wrong username in the login form will ban your IP address immediately. Entering wrong password multiple times will also ban your IP address temporarily.
Log in
Lost your password? Remember me
No account yet?
