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Electrical Science Revision Quiz

Total questions: 40

Worksheet time: 22mins

Name
Class
Date
1.

What does this symbol represent?

a)

Battery

b)

Fuse

c)

Diode

d)

Switch (open)

2.

What does this symbol represent?

a)

Switch (Closed)

b)

Switch (Open)

c)

Lamp

d)

Fuse

3.
Material that electricity can easily flow through
a)
Insulators
b)
Rubber
c)
Conductor
d)
Wood
4.
What kind of circuit is this?
a)
Series
b)
Consecutive
c)
Parallel
d)
Training
5.
What kind of circuit is this?
a)
Series
b)
Consecutive
c)
Parallel
d)
Training
6.

This symbol represents a ..........

a)

lamp

b)

wire

c)

cell

d)

resistor

7.

This symbol represents a ..............

a)

valve

b)

voltmeter

c)

Voltage

d)

Vacuum

8.

This symbol represents a .............

a)

Anode

b)

Alternator

c)

Amplifier

d)

Ammeter

9.

This symbol represents a ............

a)

angry circle

b)

lamp

c)

Resistor

d)

cell

10.

What is the name of this component?

a)

battery

b)

cell

c)

open switch

d)

lamp

11.

What is the name of this component?

a)

fuse

b)

cell

c)

motor

d)

lamp

12.

What is the unit of measure for current?

a)

ampere

b)

current

c)

voltage

d)

ohms

13.

What moves when we say that there is current?

a)

inductors

b)

conductors

c)

electrons

d)

atoms

14.

Resistance is

a)

opposite to the flow of charge

b)

opposition to the flow of charge

c)

opposition to the flow of newtons

d)

opposition to the flow of electrical current

15.

What unit of measure is for resistance?

a)

ohms

b)

ampere

c)

voltage

d)

watts

16.
What size resistor would produce a 3 Amp current flow with a 12 Volt battery
a)
1 Ohm
b)
3 Ohms
c)
4 Ohms
d)
12 Ohms
17.
How many Volts would it take to push 1 Amp through a resistance of 1 Ohm
a)
10 volts
b)
1 volt
c)
48 volts
d)
5 volts
18.

An alarm clock draws 0.5 A of current when connected to a 120 volt circuit. Calculate its resistance.

a)

60Ω

b)

120Ω

c)

180Ω

d)

240Ω

19.

If a toaster produces 12 ohms of resistance in a 120-volt circuit, what is the amount of current in the circuit?

a)

5A

b)

10A

c)

15A

d)

20A

20.
What is the unit of measurement for Power?
a)
Joules
b)
Newtons
c)
Watts
d)
Meters
21.
What is power?
a)
transfer a force through a distance
b)
the rate of speed 
c)
the rate of work being done
d)
transfer of space over time
22.
Which is an electron?
a)
A
b)
B
c)
C
23.

Identify the diagram

a)

Wiring Diagram

b)

Circuit Diagram

c)

Block Diagram

d)

AC Diagram

24.

What unit of measure is for time?

a)

seconds

b)

amps

c)

minutes

d)

hertz

25.

What unit of measure is for frequency?

a)

hertz

b)

kelvins

c)

joules

d)

hartz

26.

AC stands for

a)

Air-condition

b)

Direct Current

c)

Alternating Current

d)

Alternating Voltage

27.

The electricity in our house is

a)

AC

b)

DC

c)

BC

d)

AD

28.

An electric current flowing in one direction only

a)

voltage

b)

parallel current

c)

direct current

d)

electric current

29.

Quantity of charge can be measured in

a)

time (s)

b)

Ampere (A)

c)

coulombs (C)

d)

Joule (J)

30.

Electric currents passing through wires will produce a(n)

a)

solenoid

b)

magnet

c)

magnetic field

d)

insulator

31.

Moving a permanent magnet through a coil of wire will

a)

demagnetize the magnet

b)

the wire will become an electromagnet

c)

the magnet will become electrified

d)

a current will be generated in the wire

32.

The current rating of circuit breaker for lighting circuit is:

a)

6A

b)

20A

c)

16A

d)

32A

33.

The minimum size of wire for ring circuit is:

a)

1.5 mm²

b)

0.5 mm²

c)

2.5 mm²

d)

4.0 mm²

34.

Step-up transformer is a transformer that increases...

a)

voltage.

b)

current.

c)

resistance.

d)

conductance.

35.

In the following diagram, the wire is

a)

what spins in the magnetic field to induce electricity

b)

what you turn to provide rotary motion

c)

what provides the magnetic field for the wire to interact with to induce electricity

36.

In an electrical generator, the energy transformation begins as ___________ and becomes ____________.

a)

mechanical; electrical

b)

electrical; mechanical

c)

electrical; chemical

d)

mechanical; chemical

37.

The fuse rating is expressed in terms of

a)

Current

b)

Voltage

c)

VAR

d)

KVA

38.

An MCB helps avoid:

a)

Short Circuits

b)

Overload of Electrical Resistance

c)

Change channel

d)

Earth Faults

39.

What causes a fuse to blow?

a)

High Voltage

b)

High Resistance

c)

High Current

d)

High Power

40.

LEDs full form is-

a)

Light Era Diode

b)

Light Etern Dot

c)

Light Emitting Dot

d)

Light Emitting Diode

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