2365 MOCK EXAM UNIT 614 QUESTIONS & CORRECT
ANSWERS
State the purpose of initial verification (2 marks)**
- The purpose of initial verification is to confirm that a new electrical
installation or an alteration/addition complies with the requirements of BS
7671.
- It ensures that the installation is safe to use and free from defects before being
put into service.
State the purpose of periodic inspection and testing (2 marks)**
- The purpose is to assess the continued safety and condition of an existing
installation.
- It checks for any deterioration, defects, or changes that may affect
electrical safety over time.
When would a Minor Electrical Installation Works Certificate be issued? (2
marks)**
- It is issued for minor works that do not include the installation of a new
circuit, such as adding a socket to an existing circuit or replacing a light
fitting.
- The certificate is used where the work does not extend to a full new
installation or significant alteration.
, Who would be responsible for signing an Electrical Installation Certificate? (3
marks)**
- The person responsible for the design of the installation.
- The person responsible for the construction (installation).
- The person responsible for the inspection and testing (can be one person or
separate individuals).
Identify the meaning of IP4X and state where it would be applied for
requirements for basic protection. (2 marks)**
- IP4X means that the enclosure provides protection against solid objects larger
than 1 mm and wires (the first digit ‘4’ refers to protection against solid
objects).
- It is typically applied to enclosures, distribution boards, or consumer units to
provide basic protection against accidental contact with live parts.
1. Identify the meaning of IP2X and state where it would be applied for
requirements for basic protection (2 marks)**
**IP2X** is an Ingress Protection (IP) rating. The "2" indicates protection
against solid objects greater than 12.5 mm (such as fingers), and "X" means no
specific protection against liquids is specified.
**Application:** IP2X is applied to enclosures and equipment to provide basic
protection (formerly known as ‘protection against direct contact’), ensuring that
people cannot accidentally touch live parts with a finger or other object larger than
12.5 mm, in accordance with BS 7671/IEE wiring regulations.
, 2. Five items to check on new metallic trunking before installing cables (15
marks):**
Item What item is being What the item is Human sense
Numb checked before being used.
er the cables are checked for
installed
1 Physical condition of Damage, sharp Sight/Touch
trunking and covers edges, burrs
2 Joints and connections Secure fitting, Sight/Touch
between trunking sections electrical continuity
3 Presence and security of end Proper sealing and Sight/Touch
caps and glands fitting to prevent
ingress
4 Cleanliness of the inside of Absence of dust, Sight
the trunking debris, or water
5 Mounting security to wall or Firm and level Sight/Touch
structure attachment, no
loose fixings
3. State two instruments used for Earth Electrode Test (1 M ark):**
- Earth resistance tester (Earth megger)
- Multifunction installation tester with earth electrode testing function
ANSWERS
State the purpose of initial verification (2 marks)**
- The purpose of initial verification is to confirm that a new electrical
installation or an alteration/addition complies with the requirements of BS
7671.
- It ensures that the installation is safe to use and free from defects before being
put into service.
State the purpose of periodic inspection and testing (2 marks)**
- The purpose is to assess the continued safety and condition of an existing
installation.
- It checks for any deterioration, defects, or changes that may affect
electrical safety over time.
When would a Minor Electrical Installation Works Certificate be issued? (2
marks)**
- It is issued for minor works that do not include the installation of a new
circuit, such as adding a socket to an existing circuit or replacing a light
fitting.
- The certificate is used where the work does not extend to a full new
installation or significant alteration.
, Who would be responsible for signing an Electrical Installation Certificate? (3
marks)**
- The person responsible for the design of the installation.
- The person responsible for the construction (installation).
- The person responsible for the inspection and testing (can be one person or
separate individuals).
Identify the meaning of IP4X and state where it would be applied for
requirements for basic protection. (2 marks)**
- IP4X means that the enclosure provides protection against solid objects larger
than 1 mm and wires (the first digit ‘4’ refers to protection against solid
objects).
- It is typically applied to enclosures, distribution boards, or consumer units to
provide basic protection against accidental contact with live parts.
1. Identify the meaning of IP2X and state where it would be applied for
requirements for basic protection (2 marks)**
**IP2X** is an Ingress Protection (IP) rating. The "2" indicates protection
against solid objects greater than 12.5 mm (such as fingers), and "X" means no
specific protection against liquids is specified.
**Application:** IP2X is applied to enclosures and equipment to provide basic
protection (formerly known as ‘protection against direct contact’), ensuring that
people cannot accidentally touch live parts with a finger or other object larger than
12.5 mm, in accordance with BS 7671/IEE wiring regulations.
, 2. Five items to check on new metallic trunking before installing cables (15
marks):**
Item What item is being What the item is Human sense
Numb checked before being used.
er the cables are checked for
installed
1 Physical condition of Damage, sharp Sight/Touch
trunking and covers edges, burrs
2 Joints and connections Secure fitting, Sight/Touch
between trunking sections electrical continuity
3 Presence and security of end Proper sealing and Sight/Touch
caps and glands fitting to prevent
ingress
4 Cleanliness of the inside of Absence of dust, Sight
the trunking debris, or water
5 Mounting security to wall or Firm and level Sight/Touch
structure attachment, no
loose fixings
3. State two instruments used for Earth Electrode Test (1 M ark):**
- Earth resistance tester (Earth megger)
- Multifunction installation tester with earth electrode testing function
