15FMCE123 Introduction to Electrical Equipment and

15FMCE123 Introduction to Electrical Equipment and Components - Australian College of Kuwait

Question 1:
For the figure shown below, describe (by stating motor rotation direction) the scenarios according to the table provided below.

 High side (left) High side (right) Low side (left) Low side (right) Motor state description on off off on off on on off on on off off off off on on

Question 2:
Name the electric switches in the table below and write their main functions.

 Switch Name Function

Question 3:
For the given electric circuit below:
a) Identify and name the electric switches in the circuit below

a) Specify the number of switches that can be seen in the circuit provided below.

Question 4:
The figure below has two voltages inputs and 4 applications, answer the following related questions.
a) What is the name of the switch?

b) Connect/draw the circuit in a way to light the lamp and the speaker at the same time.

Question 5:

The figure below shows an electric grid where energy is received from different power supply sources, which will later be used to power all electric appliances and devices shown in the mentioned figure.

a) Name the electric component circled in red

b) What is the electric component that can be placed before the electric appliances and devices displayed in the figure below?

c) How many power sources can be found in the figure below and name each one of them?

Question 6:

Considering the circuit below, with a buzzer ( ) ,Motor (M) and lamp ( X )

a) What types of switches are used in the circuit? How many?
b) Explain what will happen if K2 will be closed and K1 will be open.
c) Explain what will happen if K1 will be closed and K2 will be open.

Question 7:
The figure below contains a motor and some switches!

a) Explain what happened to the motor at the current state.
b) Explain what happened when you push the push button and what should be inside box A (what is the name of the electrical component) and how it functions?

Question 8:

We usually have a traffic light designed to help pedestrians safely cross the road, the traffic light by default is green to give the way to cars. As soon as you reach the cross way and would like to cross the road to the other side, you have to press the boon on the traffic light so that it turns red (for a specific amount of time then turn green again) which will stop drivers on the way and gives pedestrians the way to safely crossing the road.

1- Which switch type should be used for this traffic light? Justify your answer.
2- Draw the electrical circuit for this application.

Question 9:

The figure below shows the application of electric components and devices in oil and gas applications. Based on what you have studied on interfacing circuits and control devices (chapter 7). How can you control the motor's rotational speed (specifically the motor shown in the figure below)?
a) Name the electric device that can control the motor rotational speed, and

b) What are the parameters that can be controlled to control the motor rotational speed?

Question 10:
For the electric circuit shown below,
a) Explain what happens if switch SW1 is off
b) Explain what happens if switch SW1 is on

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