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Electrical Domestic Wiring

Total questions: 103

Worksheet time: 56mins

Name
Class
Date
1.

What type of electricity is used in houses?

a)

Alternating Current

b)

Direct Current

2.

A safety device that breaks the circuit when is overloaded by melting a fusible link is called a ____________.

a)

Circuit Breaker

b)

Fuse

c)

GFCI

3.

Why do we use stranded vs solid wire?

a)

Stranded wire is more flexible for use in conduit

b)

Solid wire can handle higher temperatures

c)

Stranded wire can handle higher voltages

4.

What is the correct colour code for the LIVE wire?

a)

purple

b)

brown

c)

blue

d)

yellow-green

5.

What is the correct colour code for the NEUTRAL wire?

a)

brown

b)

blue

c)

yellow-green

d)

white

6.

What is the correct colour code for the EARTH wire?

a)

brown

b)

blue

c)

yellow-green

d)

orange

7.

Which wire should the FUSE be connected to, in the plug of a 3-flex cord for an appliance?

a)

live wire

b)

neutral wire

c)

earth wire

d)

it should not be connected to any wire

8.

What unit is the electrical energy consumption of appliances usually measured in?

a)

watts

b)

joules

c)

kilo-watt hours

d)

amperes

9.

Why is electrical wiring usually made from copper?

a)

Because copper is shiny

b)

Because copper conducts electricity

c)

Because copper is not magnetic

d)

Because copper insulate electricity

10.

A material that does NOT let electricity pass through it is called ...

a)

An electrical conductor

b)

An electrical insulator

c)

An electrical source

d)

An electric appliance

11.

_______ connects an electrical appliances directly to the Earth.

a)

Neutral wire

b)

Live wire

c)

Earth wire

12.

___________ cuts off the current supply in the house when excessive current flows through it.

a)

ELCB circuit breaker

b)

MCB circuit breaker

c)

Main switch

d)

Electric meter

13.

___________ measures the electrical energy that is used in the house.

a)

ELCB circuit breaker

b)

MCB circuit breaker

c)

Main switch

d)

Electric meter

14.

___________ separates the final circuit into the other parts of electrical equipment like air conditioner circuit and controls the quantity of current flows through it.

a)

ELCB circuit breaker

b)

MCB circuit breaker

c)

Main switch

d)

Electric meter

15.

The main supply of electrical energy in a house has a voltage of

a)

33 kV

b)

415 V

c)

240 V

16.

There are two types of fuse. The wire of _____________ cannot be replaced when melted. A new fuse need to be replaced instead.

a)

Replaceable fuse

b)

Irreplaceable fuse

c)

Cartridge fuse

17.

If an electrical appliance uses current of 11 A, which is the suitable value of fuse to be used.

a)

15 A

b)

5 A

c)

10 A

d)

13 A

18.

Choose the safety components found in wiring system at home.

a)

Lightning conductor

b)

ELCB circuit breker

c)

MCB circuit breaker

d)

Electric meter

e)

Main switch

19.

The electrical wiring system in a home has several safety features.

Which of the following are the safety features?

a)

The main fuse

b)

The colour codes for different wires

c)

The Earth Leakage Circuit Breaker

d)

Electric meter

20.

The diagram shows a common electrical device.

What are the safety features shown in the device.

a)

Live wire

b)

Earth wire

c)

Neutral wire

d)

Fuse

21.

An electric iron is rated 1050 W, 240 V.

Which of the following is a suitable fuse rating for the iron?

a)

1 A

b)

2 A

c)

3 A

d)

5 A

22.

Fuse rating is the minimum value of the current that can flow through it.

a)

FALSE

b)

TRUE

23.

Which is the correct symbol for a thermistor?

a)
b)
c)
d)
24.
A voltmeter should be placed ........... in a circuit
a)
in parallel
b)
in series
c)
in order
d)
upside down
25.
How should you put in an Ammeter?
a)
In Parallel
b)
In Series
26.

Touching electrical switches or receptacles with wet hands may cause electrical shock because

a)

the hands are free of oil

b)

the switches are clean

c)

water conducts electricity

d)

water is the universal solvent

27.

Which material protects from electrical conduction?

a)

copper

b)

plastic

c)

aluminum

d)

iron

28.

A device that automatically trips and opens the circuit when too much current passes through it is a:

a)

circuit breaker

b)

circuit tester

c)

single-pole swith

d)

three-way switch

29.

What material is a conductor of electricity?

a)

copper

b)

glass

c)

insulation

d)

plastic

30.

It is a small flexible insulated electrical cable having a plug at one or both ends used to connect a lamp or other appliance with a receptacle.

a)

Thread

b)

Cord

c)

Yarn

31.

It is a device on a piece of electrical equipment into which you can put a bulb or plug.

a)

Wire

b)

Socket

c)

Wood

32.

What do you call this tool?

a)

Screwdriver

b)

Hammer

c)

Wire Cutter

33.

What do you call this tool?

a)

Screwdriver

b)

Wire cutter

c)

Hammer

34.

This picture shows a?

a)

RCD

b)

MCB

c)

RCBO

d)

Fuse

35.

This picture shows a?

a)

RCD

b)

MCB

c)

RCBO

d)

Fuse

36.

This picture shows a?

a)

RCD

b)

MCB

c)

RCBO

d)

Fuse

37.

What size cable should be used on the ring main?

a)

1.5 mm

b)

2.5 mm

c)

6 mm

d)

10 mm

38.

What size MCB protects the ring main?

a)

6 amp

b)

32 amp

c)

13 amp

d)

16 amp

39.

The wiring to all the plug sockets in a domestic house is know as?

a)

The ring main

b)

Radial circuit

c)

Spur outlet

d)

Socket ring

40.

1. Which one of the following devices would be BEST suited to fixing 20 mm pvc conduit saddles to a concrete wall?

a)

Wood screw and plastic wall plug

b)

Wood screw and expanding pvc nut

c)

Masonry bolt

d)

Spring toggle

41.

Berikut adalah punca-punca berlakunya litar pintas kecuali

a)

Penebat Kabel cair

b)

Penebat yang terkoyak

c)

Penebat yang disambung dengan kemas

d)

Benda asing yang menyentuh pengalir seperti kepingan logam.

42.

Yang manakah bukan kerosakan yang sering berlaku di

dalam pepasangan elektrik satu fasa.

a)

Litar Buka

b)

Litar pintas

c)

Litar Tertutup

d)

Litar Bocor Kebumi

43.

Litar pintas berlaku apabila pengalir hidup tercantum dengan pengalir bumi

a)

BETUL

b)

SALAH

44.

Litar pintas menyebabkan MCB terpelantik

a)

BETUL

b)

SALAH

45.

Penguji Rintangan Penebatan digunakan untuk menguji litar buka

a)

BETUL

b)

SALAH

46.

If a switch is ______, a light bulb will not light.

a)

open

b)

closed

47.

When a switch is _________, the electric current can flow through the circuit.

a)

open

b)

closed

48.

Which of the following is a good conductor?

a)

gold

b)

wood

c)

ceramic

d)

plastic

49.

Which of the following is a good insulator?

a)

copper

b)

aluminum

c)

glass

d)

silver

50.
a)
Needle Nose Pliers
b)
Diagonal Side Cutters
c)
Linemans pliers
d)
Multi-purpose tool
51.
a)
Long nosed pliers
b)
diagonal side cutting pliers
c)
linemans pliers
d)
multipurpose tool
52.
a)
Long nosed pliers
b)
diagonal side cutting pliers
c)
linemans pliers
d)
multipurpose tool
53.
a)
Long nosed pliers
b)
diagonal side cutting pliers
c)
linemans pliers
d)
multipurpose tool
54.
a)
open end wrench
b)
adjustable wrench
c)
linemans wrench
d)
multipurpose tool
55.
a)
monkey wrench
b)
adjustable wrench
c)
multipurpose tool
d)
channel lock or pump pliers
56.
a)
screwdriver
b)
Claw Hammer
c)
wrench
d)
awl
57.

What is this?

a)

Battery

b)

Bulb

c)

Wire

d)

Motor

e)

Switch

58.
The voltage supplied to a circuit is 17 V and the current running through is 10 A. What is the power generated?
a)
170 W
b)
170 A
c)
1.7 V
d)
1.7 W
59.
Watts is the same as...
a)
Joules per second
b)
Voltage per second
c)
Current per second
60.
Electrical power can be calculated using
a)
Resistance x Voltage
b)
Voltage x Current 
c)
Voltage ÷ Current
61.

Antara berikut, kuantiti yang manakah tidak dapat diukur oleh multimeter?

a)

Arus

b)

Voltan

c)

Rintangan

d)

Kuasa

62.

Berapakah nilai voltan satu fasa

a)

230v

b)

260V

c)

215v

d)

245v

63.

Berapakah saiz kabel yang sesuai untuk pendawaian suis lampu

a)

1.5mm

b)

2.5mm

c)

1.0mm

d)

2.0mm

64.

Apakah kod warna untuk kabel bumi (earth)

a)

hijau

b)

merah

c)

hitam

d)

biru

65.

Berapakah saiz mcb untuk litar soket jenis jejari

a)

6A

b)

16A

c)

26A

d)

36A

66.

Kegunaaan Pena Ujian (Test Pen) untuk

a)

mengesan kebocoran arus elektrik

b)

membuat lubang permulaan

c)

memegan benda yang kecil

d)

mengukur

67.

Choose the safety components found in wiring system at home.

a)

Lightning conductor

b)

ELCB circuit breker

c)

MCB circuit breaker

d)

Electric meter

e)

Main switch

68.

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

a)

angry circle

b)

bulb

c)

Resistor

d)

cell

69.

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

a)

Bulb

b)

Battery

c)

Buzzer

d)

Microphone

70.
a)
Danger of Death
b)
Harmful or Irritant
c)
Biohazard
d)
High Voltage
71.

The process of grounding is:

a)

Falling to the ground

b)

Standing in one place

c)

Making a physical connection to Earth

d)

None of the above

72.

When the insulation on an extension cord is damaged, you should:

a)

Use duct tape to repair it

b)

Do nothing

c)

Remove it from service immediately

d)

Touch the conductors to see it they are energized

73.

berapa bilangan terminal bagi suis perantaraan?

a)

1 terminal

b)

2 terminal

c)

3 terminal

d)

4 terminal

74.

Antara berikut, kuantiti yang manakah tidak dapat diukur oleh multimeter

a)

Voltan

b)

Arus

c)

Kuasa

d)

Rintangan

75.

Berapakah bilangan terminal bagi alat "RCCB" fasa tunggal?

a)

2

b)

3

c)

1

d)

4

76.

apakah yang dimaksudkan dengan MCCB?

a)

Mould Case Circuit Breaker

b)

Mould Circuit Case Breaker

c)

Motor Current Circuit Breaker

d)

Miniature Case Circuit Breaker

77.

Namakan dua (2) kaedah pendawaian soket alir keluar?

a)

litar siri dan litar selari

b)

litar gelang dan litar selari

c)

litar jejari dan litar gelang

d)

litar jejari dan litar siri

78.

berikan dua jenis klip kabel yang digunakan bagi pendawaian permukaan?

a)

klip Aluminium

b)

klip logam

c)

klip plmbum

d)

klip plastik

79.

apakah fungsi meter kilo watt jam?

a)

mengukur jumlah tenaga yang digunakan

b)

mengukur arus yang digunakan

c)

mengukur voltan yang digunakan

d)

mengukur rintangan yang digunakan

80.

namakan peralatan tersebut:

a)

pemutar skru mata philip

b)

pena ujian

c)

pemutar skru rata

d)

pemutar nat

81.

A kilowatt (kW) is how many watts?

a)

10

b)

50

c)

100

d)

1000

82.

The unit of energy is?

a)

Amp

b)

Joule

c)

kiloWatt

d)

Volt

83.

What is the unit of Electrical Power?

a)

Joule

b)

Watt

c)

Where

d)

Amp

84.

Berapakah sudut tersebut?

a)

450

b)

1200

c)

1350

d)

3600

85.

Pilih susunan jawapan yang betul.

a)

A - Jangka Kilowattjam

B - Suis Utama

C - Unit Pemotong

D - Pemutu Litar Bocor Ke Bumi

E - Kotak Fius Agihan

b)

A - Suis Utama

B - Pemutu Litar Bocor Ke Bumi

C - Kotak Fius Agihan

D - Unit Pemotong

E - Jangka Kilowattjam

c)

A – Unit Pemotong

B – Jangka Kilowattjam

c - Suis Utama

D - Pemutu Litar Bocor Ke Bumi

E - Kotak Fius Agihan

86.

Which one CANNOT help to prevent electrocution?

a)

Do not use electrical gadgets in wet places

b)

Call electrician to replace damaged wires

c)

Overload an electrical socket

d)

Switch off and plug out plugs before cleaning appliances

87.

Two-pin plugs do NOT have the _____ wire.

a)

Live

b)

Neutral

c)

Earth

88.

This diagram shows _____.

a)

a circuit breaker

b)

overloading of a socket

c)

a melting fuse

d)

an electrocution hazard

89.

The diagram shows a _____.

a)

circuit breaker

b)

fuse

c)

rheostat

d)

switch

90.

Don't touch an electrical devices when you are_____________

a)

Angry

b)

Busy

c)

Sick

d)

Wet

91.

identify the diagram

a)

Fuse

b)

resistor

c)

lamp

d)

battery

92.

When a circuit is connected to earth, it is said to be ____.

a)

ground

b)

grounded

c)

grounding conductor

d)

grounding electrode

93.

The device that establishes an electrical connection to earth is a ____.

a)

ground

b)

grounded

c)

grounding conductor

d)

grounding electrode

94.

When a conductor contacts grounded metal equipment, the ____ will trip.

a)

ground switch

b)

overcurrent protection device

c)

relay protection device

d)

switch

95.

Look at the diagram. Why does the grounding wire protect him from a severs electric shock?

a)

Most of the dangerous current will travel through the wire because the resistance of the wire is more than the resistance of his body.

b)

Most of the dangerous current will travel through the wire because the resistance of the wire is less than the resistance of his body.

c)

The voltage in the circuit is large

d)

The voltage in the circuit is small

96.

What is one means of a grounding electrode?

a)

gas pipe

b)

steel structure

c)

wood structure

d)

furnace

97.

What is the minimum distance that ground rods need to be placed from each other?

a)

3'

b)

4'

c)

5'

d)

6'

98.

Insulators can be?

a)

Silver

b)

Wood

c)

Plastic

d)

Glass

99.

Conductors could be?

a)

Wood

b)

Copper

c)

Silver

d)

Rubber

100.

Kod warna bagi Pendawaian Sesalur (Logam) Elektrik adalah berwarna hijau.

a)

Betul

b)

Salah

101.
a)
rip saw
b)
chain saw
c)
keyhole saw
d)
hacksaw
102.

Whai is this

a)

Elbow

b)

Tee

c)

Junction

d)

None of these

103.

This PVC Conduit is known as:

a)

Elbow

b)

Tee

c)

Box

d)

None of these

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