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Question 1 of 10
1. Question
When conducting Phase 3, 1L2 Workshop Ring Final circuit continuity test, the inspector reports a substantial rise in the ohmic value from one socket outlet to the next; there is a major decrease in the ohmic value from one socket outlet to the next at about the mid-point of the final ring circuit as the measurement proceeds towards the circuit’s origin. What action should be taken by the Inspector?
Correct
Care must be taken with single-core cables in order to ensure the opposite ends achieve the target of Step 3 (R1 + R2), the open-ended conductors are cross-linked.
Incorrect
Care must be taken with single-core cables in order to ensure the opposite ends achieve the target of Step 3 (R1 + R2), the open-ended conductors are cross-linked.
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Question 2 of 10
2. Question
Corrosion is found on the top flat surface of the metallic trunking during the inspection process. What action should be taken by the inspector?
Correct
The inspector is largely responsible for ensuring the installation it is secure to continue to be used, not to locate faults. The corrosion source is Further inquiries (FI) will also be required to assess if the installation is safe to continue to be used, unknown or whether it has caused any harm to the wiring system.
Incorrect
The inspector is largely responsible for ensuring the installation it is secure to continue to be used, not to locate faults. The corrosion source is Further inquiries (FI) will also be required to assess if the installation is safe to continue to be used, unknown or whether it has caused any harm to the wiring system.
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Question 3 of 10
3. Question
The cable inspection showed IT cables in the metallic trunking system. What, Should the inspector take any action?
Correct
LV and IT cables need not be separated into metallic trunking cables. Because the metallic enclosure will effectively generate magnetic induction screening
Incorrect
LV and IT cables need not be separated into metallic trunking cables. Because the metallic enclosure will effectively generate magnetic induction screening
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Question 4 of 10
4. Question
What steps does the inspector take to ensure that the modifications to the original installation have not damaged the safety of the installation?
Correct
Earthing and bonding should have been installed for the alterations by the builder named on the Minor Works Certificate, to the BS 7671 standard. However, it is the inspector’s duty to ensure that all security measures are appropriate.
Incorrect
Earthing and bonding should have been installed for the alterations by the builder named on the Minor Works Certificate, to the BS 7671 standard. However, it is the inspector’s duty to ensure that all security measures are appropriate.
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Question 5 of 10
5. Question
In order to calculate the earth fault loop impedance of the lathe circuit, what is the right testing method the inspector should adopt?
Correct
When the lathe is operational, the continuity of the protective conductor forming the motor to the independent control gear needs to be checked for safety reasons.
Incorrect
When the lathe is operational, the continuity of the protective conductor forming the motor to the independent control gear needs to be checked for safety reasons.
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Question 6 of 10
6. Question
For the inspection and testing of the original installation, which document must be completed by the inspector?
Correct
A Condition Report of Electrical Installation, with acceptable Schedules, if a periodic review and examination are carried out, it must be done.
Incorrect
A Condition Report of Electrical Installation, with acceptable Schedules, if a periodic review and examination are carried out, it must be done.
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Question 7 of 10
7. Question
What does the inspector address before the work takes place with the person ordering the inspection and testing?
Correct
Before the inspector addresses, Extension and limitation of inspection and testing the work take place.
Incorrect
Before the inspector addresses, Extension and limitation of inspection and testing the work take place.
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Question 8 of 10
8. Question
Give the reason why the electrical installation of the Village Hall requires an inspection.
Correct
It is a statutory requirement is the correct option.
Incorrect
It is a statutory requirement is the correct option.
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Question 9 of 10
9. Question
Determine the drop in volts for Circuit 1 and whether it’s acceptable. Assume that at the mid-point of the circuit, the design current (Ib) for the ring final circuit is half the overall current for the wiring structure of Circuit 1 (1⁄2Ib).
Correct
The surface installed, PVC conduit, and trunking with single-core cables wrapped, which is reference method B, are the wiring scheme.
Incorrect
The surface installed, PVC conduit, and trunking with single-core cables wrapped, which is reference method B, are the wiring scheme.
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Question 10 of 10
10. Question
Determine the overall allowable calculated value at two decimal places for the Earth fault loop impedance of Circuit 1.
Correct
The maximum Zs for a type B circuit breaker is 1.37, but the issue demanded two decimal places for the maximum calculated value.
Incorrect
The maximum Zs for a type B circuit breaker is 1.37, but the issue demanded two decimal places for the maximum calculated value.