L3 Electrical Theory

The SI unit for power is

• Volts

• Amperes

• Watts

• Resistance

The SI unit for electromotive force is

• Volts

• Watts

• Amperes

• Resistance

The type of electricity derived from a battery is

• Alternating Wattage

• Alternating Current

• Direct Wattage

• Direct Current

The normal voltage for a domestic property is

• 415V 3-Phase AC

• 240V Single Phase DC

• 230V Single Phase AC

• 110V Single Phase AC

The relationship between current, resistance and voltage is stated in

• Boyle's law

• Ohm's law

• Current's law

• Charge's law

A fault in an electric circuit can be caused by

• low load

• over load

• heavy load

• limited load

When carrying out a continuity test you would expect

• A very high reading

• No reading at all

• A variable reading

• A very low reading

Calculate the fuse rating for an electrical 690 Watt appliance on a 230V supply

• 1 Amp

• 3 Amp

• 5 Amp

• 13 Amp

The standard UK grid voltage is

• 11 kV

• 33 kV

• 132 kV

• 400 kV

The symbol shown means that the appliance

• needs an earth connection

• does not need an earth connection

• is safe to use

• is not safe to use