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Question 1 of 10
1. Question
A Periodic Inspection is planned for an electrical installation in an industrial unit. Previous records or circuit maps are not available. What action should be taken by the inspector?
Correct
The installation size is not defined, so an exploratory survey is a realistic response.
Incorrect
The installation size is not defined, so an exploratory survey is a realistic response.
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Question 2 of 10
2. Question
When is a periodic inspection of an installation not expected to be carried out?
Correct
Either new additions or improvements to the original installation would require some depending on the form of additions or modifications, initial verification, or issuance of the Minor Electrical Installation Works Certificate
Incorrect
Either new additions or improvements to the original installation would require some depending on the form of additions or modifications, initial verification, or issuance of the Minor Electrical Installation Works Certificate
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Question 3 of 10
3. Question
What is the object of a survey until it is possible to perform a periodic inspection?
Correct
This kind of question could simply lead the candidate in the wrong direction. As it uses the word purpose. The query relates to a survey and its purpose; that is to say, the reasons why a survey is carried out. Before making a response, the candidate is strongly encouraged to read the relevant City & Guild’s questions and responses very carefully.
Incorrect
This kind of question could simply lead the candidate in the wrong direction. As it uses the word purpose. The query relates to a survey and its purpose; that is to say, the reasons why a survey is carried out. Before making a response, the candidate is strongly encouraged to read the relevant City & Guild’s questions and responses very carefully.
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Question 4 of 10
4. Question
Inside or adjacent to the DB, a durable copy of the schedule relating to the Distribution Board (DB) shall be issued. The schedule should be made available to the inspector, who may include the following in the schedule:
Correct
The inspector must refer to Regulation 410.3.2 for approval in order to ensure that the schedule (and the installation) complies with Regulation 514.9.1.
Incorrect
The inspector must refer to Regulation 410.3.2 for approval in order to ensure that the schedule (and the installation) complies with Regulation 514.9.1.
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Question 5 of 10
5. Question
For a large industrial installation, a periodic inspection is required; no diagrams, charts, or tables are available to the inspector. What procedure should not be carried out by the inspector?
Correct
As highlighted in GN3, there is a range of choices available to the inspector in cases where diagrams, graphs, or tables are not available, but simply documenting on the EICR that there was no appropriate documentation is not one of them.
Incorrect
As highlighted in GN3, there is a range of choices available to the inspector in cases where diagrams, graphs, or tables are not available, but simply documenting on the EICR that there was no appropriate documentation is not one of them.
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Question 6 of 10
6. Question
Give the main reason for the Periodic Inspection
Correct
The situation clearly shows that the periodic examination for insurance is the goal. Although a secondary explanation could exist; that is the age of the installation, this explanation is not provided in the scenario and no assumptions must be made by the applicant.
Incorrect
The situation clearly shows that the periodic examination for insurance is the goal. Although a secondary explanation could exist; that is the age of the installation, this explanation is not provided in the scenario and no assumptions must be made by the applicant.
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Question 7 of 10
7. Question
Circuit 1L3 has a total resistance of 0.44 at 20 °C and the current of the load is 13Amperes. Determine the voltage drop for the circuit: does BS 7671 comply with this measured value and what is the maximum voltage drop for 1L3?
Correct
With the aid of Ohms Law Equation V = I × R.
Incorrect
With the aid of Ohms Law Equation V = I × R.
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Question 8 of 10
8. Question
An insulation resistance test on Circuit 3L1 is to be performed. Indicate the instrument to be used for the test, the maximum test voltage and the observation code to be registered, provided that the reading of the insulation resistance is half the minimum value stated in BS 7671.
Correct
The facility is 7 years old and is in constant use, so it is unlikely that it will be used. There is immediate danger; the more likely 3L1 circuit is potentially dangerous. In any case, the installation must be recorded as unsatisfactory.
Incorrect
The facility is 7 years old and is in constant use, so it is unlikely that it will be used. There is immediate danger; the more likely 3L1 circuit is potentially dangerous. In any case, the installation must be recorded as unsatisfactory.
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Question 9 of 10
9. Question
In relation to the measured earth fault loop impedance (Zs(m)) readings, what action should the inspector take?
Correct
Provided that the corrected value is not greater than the measured value, no action is necessary, however, if the measured values are greater than the corrected values, further action is needed with an appropriate Observation Code.
Incorrect
Provided that the corrected value is not greater than the measured value, no action is necessary, however, if the measured values are greater than the corrected values, further action is needed with an appropriate Observation Code.
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Question 10 of 10
10. Question
What action should the inspector take with regard to 3L2, where the design requirements describe this circuit’s combined resistance as 0.92?
Correct
The original installation was installed in accordance with the previous Regulations. (Installed 7 years ago) where socket outlets not exceeding 20A did not require RCD protection at commercial premises. Observation Code 3 should therefore be issued in order to recommend the fitting of the RCD to provide additional electrical safety.
Incorrect
The original installation was installed in accordance with the previous Regulations. (Installed 7 years ago) where socket outlets not exceeding 20A did not require RCD protection at commercial premises. Observation Code 3 should therefore be issued in order to recommend the fitting of the RCD to provide additional electrical safety.