Chapter 4 Questions 1 to 15

	1. What does AC stand for
		Alternative Current
		Alternating Current
		Adjacent Current
		Audio Current

	2. What does DC stand for
		Deviating Current
		Divergent Current
		Dilating Current
		Direct Current

	3. What is represented by electrical pulses on copper conducting wires or light pulses in optical fibers.
		Segments
		Frames
		Bits
		Data

	4. The atom consist of the following types of matter
		Electrons, Positrons, Neutrons
		Electrons, Protons, Nucleus
		Electrons, Protons, Neutrons
		Negitrons, Postitrons, Nucleus

	5. The electron has a
		Negative charge and orbits the nucleus
		Positive charge and forms part of the nucleus
		No charge and forms part of the nucleus
		Negative charge and forms part of the nucleus

	6. Which part of the atom can be pulled free and cause the electricity
		Electron
		Positron
		Nucleus
		Neutron

	7. Which statement best describes "Static Electricity"
		Electricity that is caused by a lighting strike
		Electricity that gives you a shock
		Electricity in a circuit that remains still, for example when a switch is open
		A material which has loosened electrons that stay in one place

	8. This can cause problems in sensitive electrical equipment and randomly damage computer chips and data.
		RFI
		EMI
		ESD
		EMF

	9. Which statement best describes a conductor
		Materials that allow electrons to flow through them with great difficulty, or not at all
		Materials that allow electrons to flow through them with great ease.
		Materials that precisely controls the amount of electrons flowing through them
		None of the above

	10. Carbon and Silicon are what type of material
		Conductor
		Insulator
		Semi-conductor

	11. Resistance is best described as
		Electrical pressure due to separation of electrical charges
		Flow of charged particles, usually electrons
		Property of a material that opposes, and can control the flow of electrons in a DC circuit
		Property of a material that opposes, and can control the flow of electrons in an AC circuit

	12. What does a multimeter measure
		Voltage, Resistance, Continuity
		Voltage, Resistance, Frequency
		Voltage, Current, Frequency
		Current, Continuity, Frequency

	13. AC current can be produce by which device
		Car Battery
		Light bulb
		Magnet
		Generator

	14. Identify the correct coloured wire to connect to the live, neutral and ground pins in a 13A plug
		Brown, Blue, Yellow/Green
		Blue, Brown, Yellow/Green
		Red, Black, Green
		Yellow/Green, Blue, Brown

	15. Which phrase best describes a "brown out"
		Power surge
		Power sag
		Short circuit
		Grounding