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Electrical Appliances Quiz

Total questions: 9

Worksheet time: 5mins

Name
Class
Date
1.

If an appliance needs 3kW in a domestic property, what is the fuse size?

a)

12.5 amp

b)

10 amp

c)

15 amp

d)

20 amp

2.

In a domestic property, an appliance has a fuse size of 3 amp. What is the maximum power rating of the appliance?

a)

720w or 0.72kW

b)

500w or 0.5kW

c)

1000w or 1kW

d)

300w or 0.3kW

3.

An appliance has a 5 amp fuse and needs 1.2kW of power. What is the voltage required?

a)

240 volts

b)

120 volts

c)

300 volts

d)

200 volts

4.

Calculate the applied EMF when 2 amperes flows through a resistance of 40Ω. Use the formula V = I × R.

a)

80 volts

b)

60 volts

c)

100 volts

d)

50 volts

5.

When an EMF of 50 volts is applied to a circuit, a current of 5 amperes flows. Calculate the resistance of the circuit.

a)

10 ohms

b)

5 ohms

c)

15 ohms

d)

20 ohms

6.

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

a)

10 ohms

b)

20 ohms

c)

30 ohms

d)

40 ohms

7.

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

a)

3A

b)

5A

c)

10A

d)

13A

8.

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

a)

416 volts

b)

320 volts

c)

208 volts

d)

104 volts

9.

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

a)

2A

b)

1A

c)

3A

d)

0.5A