Electrical Appliances Quiz

If an appliance needs 3kW in a domestic property, the fuse size is (a)   .

• 12.5 amp
• 10 amp
• 15 amp
• 20 amp

In a domestic property, an appliance has a fuse size of 3 amp. The maximum power rating of the appliance is (a)   .

• 720w or 0.72kW
• 500w or 0.5kW
• 1000w or 1kW
• 300w or 0.3kW

An appliance has a 5 amp fuse and needs 1.2kW of power. The voltage required is (a)   .

• 240v
• 120v
• 110v
• 220v

What would be the resistance of a domestic appliance if the fuse size was 3 amp?

• 10 ohms

• 20 ohms

• 30 ohms

• 40 ohms

What is the fuse size for a domestic appliance which has 1,200 ohms resistance?

• 1A

• 2A

• 3A

• 5A

If an appliance had a fuse rated at 13 amp and the resistance was 32 ohms, what would the voltage be?

• 416 volts

• 320 volts

• 208 volts

• 104 volts

Calculate the current that will flow in the circuit shown below: