Study with the several resources on Docsity
Earn points by helping other students or get them with a premium plan
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
Community
Ask the community for help and clear up your study doubts
Discover the best universities in your country according to Docsity users
Free resources
Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors
The City & Guilds 2365 qualification in electrical installation encompasses a critical learning framework designed to equip candidates with the necessary skills and knowledge for a successful career in the electrical sector. Unit 614 specifically focuses on the principles of electrical science and the electrical system's operational safety. The Mock Exam B (2025) serves as a vital resource for students preparing for their assessments, delivering an extensive array of practice questions that simulate the actual examination environment. Our carefully curated online product description highlights the intricate correlation between theoretical knowledge and practical application, ensuring that candidates can solidify their understanding of key concepts while improving their examination techniques. City & Guilds 2365, Unit 614 Exam B, electrical installation, electrical science, mock exam, City & Guilds qualifications, #CityAndGuilds2365, #Unit614, #ElectricalInstallation, #ElectricalScience
Typology: Exams
1 / 17
This page cannot be seen from the preview
Don't miss anything!
a mock exam, covers several areas including verification documents, inspection responsibilities, and likely other topics related to the field of study. It uses a multi-section format to test knowledge on these specific areas. The exam simulates the structure of a real exam, providing practice and preparation for a more formal assessment.
### State the documents issued following Initial Verification. (3 marks)
### State the documents issued following a Periodic Inspection and Test. (3 marks)
### State the documents issued following an addition or alteration to an existing installation. (1 mark)
#### ii) The second number used in an IP rating i.e. IPX
### Explain why inspections need to be carried out during erection of an installation (2 Marks) Item number Item is to be checked before cables are installed What the item is being checked for Human sense used 1 Conduit system Fully completed Sight 2 Conduit system Complies with relevant British Standard (BS EN 61386 - 21) Sight 3 Conduit system Securely fixed Touch 4 Conduit edges/joints No sharp edges Touch 5 Ends of conduit and scratches Protected by galvanised paint Sight
Inspections during erection allow identification and correction of faults, defects, and non-compliance with regulations before cables are installed, making rectification easier and ensuring safety and quality of the installation.
### Alternative Tester (No Live Supply) (1 Mark) An earth resistance tester (often called an earth tester or Megger) can be used to measure earth electrode resistance without a live supply.
### Earth Electrode Test Values (3 marks) Given readings: i) 130Ω, ii) 132Ω, iii) 129Ω The value to be recorded as Ze is the average of the three readings: (130 + 132 + 129) / 3 = 130.33 Ω This value (to two decimal places) should be recorded as 130.33 Ω on the Electrical Installation Certificate.
### BS7671 Acceptability (2 marks)
****2. List 5 considerations when assessing suitability of equipment for external influences in a domestic dwelling (3 Marks):****
****3. State two factors that would cause earth fault loop readings to be higher than acceptable values in BS7671 (2 Marks):****
The following questions refer to the scenario below. A new distribution circuit is to be added to the electrical installation in a 10 year old retirement home, to supply a small workshop and the associated single phase circuits. The installation forms part of a 400/230 V TN-S system and the distribution circuit terminates at a metal-clad SP & N distribution board within the workshop. The distribution circuit is protected by 63A BS EN 60898 Cb and wired using a three-core XLPE thermosetting SWA cable with one of the conductors being used as the cpc. The SWA cable is installed underground between the two buildings and on perforated tray work where it enters and exits the ground. The ring final circuits in the workshop are protected by RCBOs to BS EN 61009 – 1 wired using single core 70° C insulated thermoplastic cables, with copper conductors in surface mounted metallic conduit and trunking. The lighting circuit is protected by Cb’s to BE EN 60898. All testing is to be carried out at an ambient temperature of 20°C. **### **Separation of Band 1 and Band 2 Circuits (3 marks)****
**### **Instrument for Confirming Continuity of CPC (1 mark)****
**### **Instrument for Carrying Out Ring Final Continuity Tests (1 mark)****
**### **Instrument for Carrying Out Insulation Resistance Tests (1 mark)****
**### **Three Reasons for Carrying Out Polarity Tests (3 marks)****
**### **How to Test Polarity without a Meter (1 mark)****
**### **Instrument and Reason for Live Polarity of Supply Test (2 marks)****
**### 1. Five Results Recorded and Box Numbers Following Ring Final Continuity Testing (5 Marks) **The following results and their corresponding schedule/test boxes:****
### 2. Earth Fault Loop Impedance Calculation & Acceptability (3 Marks) Given:
**### 5. Earth Fault Loop Path for a Workshop Lighting Circuit (Diagram & Description) **Description:**** The earth fault loop path is the route an earth fault current would take from a fault at a lighting point back to the supply transformer. The path is:
****Labelled Diagram:****
[Lamp]---(L)---[Switch]---(L)---[Consumer Unit]---(Line)---[Supply] | | (CPC)--------------------------(Earth bar)---[Main Earth]---[Supply Earth] ↑ | [Earth Fault] [Transformer]