Quiz about 2365-203 Electrical Installation

Question 1

TNS earthing systems use the

Accepted Answer

supply cable armour

Answer

earth electrode

Answer

neutral

Answer

transformer

Question 2

RCD's that are used to protect socket outlet are rated at

Accepted Answer

30 mA

Answer

30 A

Answer

3 mA

Answer

300 mA

Question 3

The symbol Ze is associated with

Accepted Answer

external suppliers earth loop impedance

Answer

total loop impedance

Answer

R1

Answer

R2

Question 4

A TNCS earthing system, changes Line to c.p.c faults to

Accepted Answer

Line to neutral faults

Answer

Line to Line faults

Answer

Line to c.p.c faults

Answer

c.p.c to Line faults

Question 5

The symbol for Total earth loop impedance is?

Accepted Answer

Zs

Answer

Ib

Answer

Iz

Answer

Ze

Question 6

The insulation material in mineral insulated cable is

Accepted Answer

magnesium oxide

Answer

manganese oxide

Answer

magnesium dioxide

Answer

manganese dioxide

Question 7

What is the maximum percentage of trunking that can be filled with cable:

Accepted Answer

45%

Answer

35%

Answer

55%

Answer

65%

Question 8

Which MCB will disconnect in the shortest time?

Accepted Answer

Type B

Answer

Type C

Answer

Type D

Answer

RCD

Question 9

What is the BS number for a MCB?

Accepted Answer

BS 60898

Answer

BS 1265

Answer

BS 61009

Answer

BS 60947

Question 10

Name the extraneous conductive part

Accepted Answer

Central heating pipework

Answer

Socket cover

Answer

PVC switch

Answer

Cable tray

Question 11

Identify the exposed conductive part.

Accepted Answer

Metal trunking

Answer

PVC conduit

Answer

Ventilation ductwork

Answer

oil pipes

Question 12

which conductor links the MET to an exposed conductive part>

Accepted Answer

CPC

Answer

Bonding conductor

Answer

Supplementary bonding

Answer

Earthing conductor

Question 13

which earthing system requires an earth electrode?

Accepted Answer

TT

Answer

TNC

Answer

TNS

Answer

TN-C-S

Question 14

Identify the Transmission voltage (super grid voltage)

Accepted Answer

400Kv

Answer

11Kv

Answer

33Kv

Answer

230v

Question 15

Which energy production uses high pressure steam to power a generator?

Accepted Answer

Nuclear

Answer

Wind

Answer

Hydro

Answer

PV

Question 16

Which one of the following are non-statutory regulations?

Accepted Answer

BS 7671

Answer

Electricity at Work Regulation

Answer

Manual Handling Regulation

Answer

Provision and use of Work Equipment Regulations

Question 17

The document showing the location of electrical equipment in an electrical installation is a:

Accepted Answer

drawing

Answer

specification

Answer

variation order

Answer

gannt chart

Question 18

Which one of the following diagram types does not show individual conductors or cables but shows the sequence of equipment

Accepted Answer

Block

Answer

Circuit

Answer

Schematic

Answer

Bar chart

Question 19

The type of trunking that can be used as a circuit protective conductor is:

Accepted Answer

steel

Answer

mini

Answer

PVC dado

Answer

plastic

Question 20

A circuit installed to supply a fire panel would be identified as:

Accepted Answer

alarm and emergency system

Answer

power and heating

Answer

data communication

Answer

control circuit

Question 21

Which one of the following directly affects all persons working with electricity in a working environment?

Accepted Answer

Electricity at Work Regulations

Answer

Electricity Safety, Quality and Continuity Regulations

Answer

BS 7671:2018

Answer

Construction design and management Regulations

Question 22

A drawing is produced to a scale of 1:50 showing a socket outlet installed 3.5cm from the corner of a room. Which one of the following is the actual distance from the corner in the room?

Accepted Answer

1.75m

Answer

0.875m

Answer

3.5m

Answer

7m

Question 23

Which one of the following symbols represents the rating factor for thermal insulation

Accepted Answer

Ci

Answer

Ca

Answer

Cf

Answer

Cg

Question 24

Which one of the following devices is suitable for an installation supplying an Xray machine in a hospital?

Accepted Answer

BS EN 60898 Type D

Answer

BS 3036 rewireable fuse

Answer

BS EN 60898 Type C

Answer

BS EN 60898 Type B

Question 25

Which one of the following is the conduit capacity factor to be used where a 25mm conduit has 2 bend in a 6m run?

Accepted Answer

333

Answer

111

Answer

182

Answer

600

Question 26

Which one of the following is the correct name of the component which links the main earthing terminal of an installation to the means of earthing?

Accepted Answer

Earthing conductor

Answer

Main protective bonding conductor

Answer

Supplementary equipotential bond

Answer

Functional earth

Question 27

What is represented by Zs in the following formula: Zs=Ze+(R1+R2)?

Accepted Answer

Total earth fault loop impedance

Answer

External earth fault loop impedance

Answer

Final circuit earth fault loop impedance

Answer

Combined resistance of the earth path

Question 28

What is represented by Ze in the following formula: Zs=Ze+(R1+R2)?

Accepted Answer

External earth fault loop impedance

Answer

Total earth fault loop impedance

Answer

Final circuit earth fault loop impedance

Answer

Combined resistance of the earth path

Question 29

What is represented by R1 in the following formula: Zs=Ze+(R1+R2)?

Accepted Answer

Resistance in the line conductor

Answer

Resistance in the earth conductor

Answer

Total earth fault loop impedance

Answer

External earth fault loop impedance

Question 30

Which one of the following is an exposed conductive part?

Accepted Answer

Metal-clad switch

Answer

Structural steelwork

Answer

Air conditioning ducting

Answer

Metallic oil service pipe

Question 31

Which one of the following is metal cable trunking?

Accepted Answer

Exposed conductive part

Answer

Earthed conductive part

Answer

Extraneous conductive part

Answer

Insulated part

Question 32

Which one of the following is an extraneous conductive part?

Accepted Answer

Metallic gas service pipe

Answer

Metal-clad twin socket outlet

Answer

Heavy duty steel conduit

Answer

PVC mini-trunking

Question 33

Which one of the following methods of generating electricity uses fossil fuels?

Accepted Answer

Gas

Answer

Wave power

Answer

Solar

Answer

Wind

Question 34

Which one of the following uses sunlight to generate electricity?

Accepted Answer

Photo-voltaic

Answer

Biomass

Answer

Wind

Answer

Air source heat pump

Question 35

Which one of the following is a transmission voltage?

Accepted Answer

400kV

Answer

33kV

Answer

11kV

Answer

400V

Question 36

Which one of the following is a typical distribution voltage for a medium-sized factory where a private sub-station is located?

Accepted Answer

11kV

Answer

230V

Answer

400V

Answer

5kV

Question 37

Which one of the following describes the process of a solar photo-voltaic system?

Accepted Answer

Solar power is collected by a solar panel which provides electricity

Answer

Solar power is used to ignite a biomass which heats up water

Answer

Solar power is collected by a solar panel which provides hot water

Answer

Solar power causes hot air to rise, rotating a generator that produces electricity

Question 38

State the protective device rating for an A3 radial final circuit.

Accepted Answer

20A

Answer

32A

Answer

30A

Answer

6A

2365-203 Electrical Installation

40 questions

TNS earthing systems use the

RCD's that are used to protect socket outlet are rated at

The symbol Ze is associated with

A TNCS earthing system, changes Line to c.p.c faults to

The symbol for Total earth loop impedance is?

The insulation material in mineral insulated cable is

What is the maximum percentage of trunking that can be filled with cable:

Which MCB will disconnect in the shortest time?

What is the BS number for a MCB?

Name the extraneous conductive part

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