Based on C&G2382 - BS7671:2018 (Amendment 3:2024) Electrical Regulations Mock Exam (20 questions from a small bank of questions)

The choice of the type of wiring system and the method of installation shall consider all except
1. Load current
2. Nature of the location
3. Voltage
4. Short-circuit current
Equipment may not be fixed
1. On covers which can inadvertently be removed
2. On equipment mouldings
3. On or in skirting-board trunking
4. On or in steel cable trunking
When conductors are identified by the number zero, it;
1. Identifies the neutral or midpoint conductor
2. May not be used
3. Identifies the protective conductor
4. Identifies the line conductor
Potential sources of electromagnetic disturbances include all except for
1. Batteries
2. Rectifiers
3. Electric motors
4. Discharge lighting
Where protection is provided against overload and not fault current the device providing protection may be
1. an Inverse time lag protective device
2. a 30mA RCD
3. a BS 88-2 fuse
4. a RCD with a maximum rating of 300mA
A 1500V DC voltage between conductors is classified as being
1. Band II
2. Band I
3. ELV extra low voltage
4. RLV reduced low voltage
An interrupting device shall be installed in such a way that it can be easily recognised and effectively operated where necessity for immediate interruption of the supply, is termed as
1. Emergency control
2. Environmental condition
3. Accessibility of electrical equipment
4. Protective equipment
For a shower installed without a basin
1. Zone 1 is increased to 1.20m
2. Zone 2 applies
3. Zone 2 is 0.6m from the water-outlet
4. Zone 0 does not apply
For a construction site, reduced low voltage is the preferred protection method for all except
1. Portable hand lamps in confined locations
2. Portable hand lamps
3. Local lighting up to 2kW
4. Portable hand tools
Three phase 4-wire system including a PEN conductor has only
1. Three live conductors
2. Four live conductors
3. Two live conductors
4. Three conductors
During inspection of a part of an installation that requires testing that part shall normally
1. Be disconnected from the supply
2. Have current using equipment operating
3. Be connected to the normal supply
4. Have current using equipment connected
A supplementary bonding conductor with mechanical protection connecting two extraneous-conductive parts shall have a minimum c.s.a. of mmsq
1. 2.5
2. 4.0
3. 1.5
4. 16
The co-ordination between fault current and overload protective devices is that the overload protective device can withstand without damage
1. The energy let through by the fault current protective device
2. The overload current of the circuit
3. The nominal voltage rating of the fault current protective device
4. The design current of the circuit
When a PEI is in island mode, all live conductors shall be
1. Disconnected from the DNO supply
2. Switched independently
3. Connected to the public supply
4. Connected in parallel with the public supply
RCD for the protection against the risk of fire shall have a rating not exceeding
1. 300mA
2. 30mA
3. 10mA
4. 100mA
A detailed inspection of an installation prior to testing is required to verify that installed equipment is satisfied all except
1. Suitable for minimum test values
2. Correctly selected and erected
3. In compliance with Section 511
4. Not visibly damaged or defective
The connecting cable to a caravan pitch socket-outlet shall be with an allowance of 2m a maximum continuous length of
1. 25m
2. 15m
3. 10m
4. 35m
For a ring final circuit protected by 32A overcurrent protective device BS 7671 states as a rule of thumb that the total floor area being served is limited to
1. 100 metres squared
2. 75 metres squared
3. 50 metres squared
4. 125 metres squared
For a bare (105 degreeC) M.I cable operating in an ambient temperature of 50 degC the rating factor Ca to be used is
1. 0.84
2. 0.8
3. 0.75
4. 0.91
A single-pole switching device may switch only the neutral conductor for
1. Connection of a lighting control device
2. PELV circuits
3. RCD protected circuits
4. SELV circuits
a protective device where it is intended by the manufacturer that a source of supply is only connected to one defined set of connection terminals is known as a
1. unidirectional protective device
2. bidirectional protective device
3. unconventional protective device
4. protective separation

Based on C&G2382 - BS7671:2018 (Amendment 3:2024) Electrical Regulations Mock Exam (20 questions from a small bank of questions)

BS7671 Electrical regulations mock test (use Amendment 3:2024 regs book) - 20 questions from a small question bank (for many more mock exams and detailed answer sheets - look at my Dropbox option for the 2382 mock exam pack on my website)