Chapter 7 (1) : Electrical Installation Systems

1. Which one is NOT a part of the basic concepts of electricity?

• Conductors

• Electric

• Inculators

• Lightning

2. Which one describes the best definition of CONDUCTORS?

• Material which not allow an electric current to flow.

• Material which allow an electric current to flow.

• Material that not resist the flow of an electric current.

• Material that resist the flow of an electric current.

3. CURRENT refers to the

• Flow of the electric charge in a circuit.

• Amount of stored electricity in a battery.

• Voltage supplied by a power source.

• Resistance to electricity in a circuit.

3. What happens to electricity when the circuit is broken?

• It reverses direction.

• It flows faster.

• It stops flowing.

• It increases in voltage.

5. Ohm's Law explains the concept of electricity through the relationship between:

• Voltage

• Current

• Resistance

• All of the above answers.

6. Based on the diagram provided, choose the appropriate system for each box.

• (i) GENERATION
  (ii) DISTRIBUTION
  (iii) TRANSMISSION

• (i) GENERATION
  (ii) TRANSMISSION
  (iii) DISTRIBUTION

• (i) TRANSMISSION
  (ii) DISTRIBUTION
  (iii) GENERATION

7. Choose the correct example of a RENEWABLE SOURCE.

• Coal

• Natural Gas

• Hydropower

• Oil

8. Electric power can be transmitted or distributed either by overhead system or by underground cable. TRUE or FALSE?

• True

• False

What is the primary function of a distribution substation in an electric power system?

• To generate electricity.

• To transmit electricity over long distances.

• To store electricity for future use.

• To lower the transmission voltage to medium voltage for distribution.

10. What are the two types of power distribution phases?

• Direct Phase and Indirect Phase.

• Single Phase Power and Three Phase Power.

• High Voltage Phase and Low Voltage Phase.

• Static Phase and Dynamic Phase.