WorksheetsElectrical Principles 6035-02 | Revision
Total questions: 42
Worksheet time: 22mins
When pulling a plug from a socket, what is the last point of contact between plug and socket?
The earth terminal
The fuse
The live terminal
The neutral terminal
The domestic voltage is 230v, but what would be the low-voltage on a central heating system?
110v
24v
400v
240v
If a circuit was to overload, what would be the first to damage?
The appliance
The fuse
The sleeve
The insulation
1) Make sure it is ok to disconnect the supply.
2) Identify the source for the supply.
3) Go back to appliance and prove appliance is dead
4) Test the voltage indicator on a known source.
5) Switch off MCB/remove fuse, lock and label.
Select the correct sequence.
4, 2, 5, 3, 1, 4
1, 4, 5, 3, 2, 1
1, 2, 4, 5, 3, 4
2, 5, 4, 1, 3, 4
What is the component show?
Manometer
Multimeter
Approved voltage indicator
Continuity tester
When there is a problem with the circuit, what would your first action be?
Isolate, rectify problem
Inform customer, isolate
Inform customer, rectify problem
Identify, prove circuit is dead
What is the component circled?
Incoming mains
Consumer unit
Meter
Main earth bar
What is the component circled?
Incoming mains
Consumer unit
Meter
Main earth bar
If there is a major electrical problem in a domestic dwelling, what should be done?
Isolate
Inform the tenant
Inform the supervisor
Inform the local authority
If there is a major electrical problem in a un-occupied dwelling, what should be done?
Isolate
Inform the current tenant
Inform the local authority
Inform the property owner
What is the component shown?
Armoured cable
3-core cable
Multi-core flex
Twin gauge core
What type of connection would be commonly found in the component shown?
Strip connector
Screw-down terminal
Pillar terminal
Claw terminal
What type of connection would be commonly found in the component shown?
Strip connector
Screw-down terminal
Pillar terminal
Claw terminal
The component shown is used for?
Supplementary bonding
Equipotential bonding
Cross bonding
Temporary continuity bonding
The component shown here is?
Approved voltage indicator
Proving unit
Manometer
Multi meter
When a cable enters through a concealed metal box, what needs to be used?
Plastic grommets
Rubber grommets
Glass grommets
Metal grommets
Where is armoured cable used? (Choose 2)
Outhouse's
Cross bonding
Incoming mains
Supplementary bonding
The component shown is?
RCD
RCBO
Fuse
MCB
The component shown is?
RCD
RCBO
Fuse
MCB
Which circuit is shown here?
Radial circuit
Ring circuit
Parallel circuit
Cross circuit
Which circuit would be associated with lighting?
Radial circuit
Ring circuit
Parallel circuit
Cross circuit
When cutting into pipework, when should be temporary continuity bonding be connected?
Before cutting plastic pipe
After cutting plastic pipe
Before cutting copper pipe
After cutting copper pipe
Which of the following are earthing systems in a domestic house?
MGP, TT, WSB
TNS, TNCS, TT
NTS, ATS, TT
BTCC, TT, BTC
The terminal shown is?
Claw terminal
Screw terminal
Pillar terminal
Strip connector
What is the purpose of earth continuity?
In the case of a fault, you are safe
In the case of a fault, informs the tenant
In the case of a fault, isolates the circuit
In the case of a fault, causes an overload
Which type of test is carried out to ensure that live and neutral conductors are not crossed?
RCD test
Polarity test
Earth continuity test
Insulation resistance test
Performing such tests at regular time intervals can detect impending insulation failures before they occur and prevent user accidents or costly product repairs, is known as?
Polarity test
Earth continuity test
Insulation resistance test
Voltage test
When performing an insulation resistance test, what pole is tested?
Live to neutral
Live to earth
Earth to neutral
All of the above
The colour indicated for neutral is?
Blue
Brown
Green/yellow
Red
In the case of an overload, which of the following is easily rectified?
Resetting the MCB
Changing the current of the RCD
Rewiring the entire circuit
In the case of an overload, which of the following is cannot be rectified?
Resetting the MCB
Changing the current of the RCD
Rewiring the entire circuit
Changing fuses in 3-pin plugs
What type of bonding would be present in the events of the copper pipes having a plastic gas meter fitted?
Equipotential bonding
Supplementary bonding
Temporary continuity bonding
Cross bonding
What type of bonding would connect directly to the main earth bar?
Equipotential bonding
Supplementary bonding
Cross bonding
Temporary continuity bonding
Select the multi-core cable.
The final connection to a macerator WC is made using which of the following?
Fused spur switch
Double pole switch
Pull cord
Unswitched connection unit
The main continuity bonding conductor to gas pipework in a domestic property is sized at?
2.5mm
6.0mm
4.0mm
10.0mm
A grommet is used:
As a cable enters a plastic surface-mounted box
As a cable enters a concealed metal box
To sleeve the earth conductor
As insulation for cables
The main reason for not permitting tight coils in electrical cables when installing them is?
An excess of cable is used
Heating can occur in the cable
The circuit will not work
The cable will split
Which of the following type of tests would be carried out to ensure that in the event of an electrical fault through contact with a metallic pipe, the current would flow to earth?
RCD test
Polarity test
Earth continuity test
Insulation resistance test
What instrument should be used under the safe isolation procedure when checking for safe isolation?
RCD tester
Insulation resistance tester
Multi-meter
Approved voltage-indicating device
The isolation of an electric shower should take place at the?
Pull-cord switch
Rocket plate switch
Main supplier's fuse
Consumer unit
What is the recommended device for checking the correct operation of an approved voltage indicating device?
Proving unit
Multi-meter
Earth teaster
Neon screwdriver
