Which test could also indicate the supply polarity?

A. External earth fault loop impedance.

B. Continuity of protective conductors.

D. Continuity of ring final circuits.

What can be done in order to ensure that instrument readings are accurate?

D. Regularly check instruments against known values.

A. Check that serial numbers are present.

B. Ensure that instruments have BS numbers.

C. Ensure that the test lead fuses are removed.

What does HSE guidance recommend for detachable test leads used on a single instrument?

D. They must be different colours.

B. They must be at least 2.5 mm² csa.

C. They must only have single insulation.

What would not be a requirement before using test instruments?

B. Recording details of the instrument supplier.

A. Checking for damage before use.

C. Ensuring the instrument functions correctly.

D. Ensuring the supply is isolated before commencing dead tests.

What is the most likely reason for continuity of protective bonding conductor results being higher than expected?

A. The lead resistance has not been subtracted from the result.

B. The lead resistance has not been added to the result.

C. The leads are too short to carry out the test correctly.

D. The leads are too long to carry out the test correctly.

What could be the reason for obtaining a satisfactory result, even if the conductor is broken, when testing the continuity of a main protective bonding conductor which is not disconnected at either end?

D. The presence of parallel paths.

A. Using an un-calibrated instrument.

B. The instrument is set on the wrong scale.

C. The test leads being too long.

Which one of the following is not a reason for conducting a ring final circuit continuity test?

A. To check that the cable insulation is sufficient.

B. To check the correct connection of each item on the circuit.

C. To check the circuit is in the form of a ring with no interconnections.

D. To check the continuity of the line, neutral and protective conductors.

What would be indicated by the readings below, during a test of ring final circuit continuity? Line – Line loop reading = 0.1 Ω Neutral – Neutral loop reading = 0.1 Ω cpc – cpc loop reading = 0.167 Ω

D. The cpc is a smaller csa than the live conductors.

A. The cpc is a shorter length than the live conductors.

B. The cpc is the same csa as the live conductors.

C. The cpc is a larger csa than the live conductors.

What should be confirmed during a test for polarity?

D. Single-pole switches and devices are connected in the line conductor only.

A. Continuity of line conductors.

B. Continuity of protective conductors.

C. Outer metal contacts of ES lamps are connected to the line conductor.

Which instrument should be used for testing polarity of the incoming supply to an installation?

C. An approved voltage indicator.

B. An insulation resistance tester.

D. An earth electrode resistance tester.

What reading would be recorded on the electrical installation certificate if the prospective fault current for a single-phase electrical installation is measured between line to earth and line to neutral?

D. The higher of the two values.

A. The line to earth value doubled.

B. The line to neutral value doubled.

C. The lower of the two values.

A test of prospective fault current at the origin of an installation has been carried out. What should the result be compared with?

A. The breaking capacity of the main protective device.

B. The breaking capacity of the main isolator.

C. The nominal current rating of the main protective device.

D. The nominal current rating of the main isolator

Where is the correct location to connect test leads, within an installation, in order to test an RCD?

D. At a suitably safe location on the load side of the RCD.

A. As close as possible to the RCD on the supply side.

B. At a suitably safe location on the supply side of the RCD.

C. As far away as possible from the RCD on the supply side.

What could not be verified by the use of a rotating disc type instrument?

C. Disconnection of protective devices with the specified times.

A. Correct labelling/identification of plain conductors.

B. Phase sequence at the origin of the supply to an installation.

D. Direction of rotation at the supply terminals of a three phase motor.

What is the purpose of operating the integral test button of an RCD?

A. To confirm the function of the mechanical parts.

B. To ensure it disconnects at the specified fault currents.

C. To isolate the RCD prior to carrying out instrument tests.

D. To reset the RCD following the required instrument tests.

Which document should the customer be provided with after the installation of a new shower circuit?

A. An Electrical Installation Certificate.

B. An Electrical Installation Condition Report.

C. A Minor Electrical Installation Works Certificate.

D. A copy of the test equipment calibration certificate.

Inspection and Testing Mock

Authored by Chris Falet

Other

1st - 12th Grade

Used 115+ times

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MULTIPLE CHOICE QUESTION

2 mins • 1 pt

1 Who, under the Electricity at Work Regulations, should the inspector ensure the safety of?

A. Themselves.

B. The client and others.

C. Both themselves and others.

D. Staff in other buildings owned by the client.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Where is the correct location to test that a lighting circuit is isolated and safe to work on?

A. At the supply intake position.

B. On the supply side of the circuit protective device.

C. At any convenient luminaire.

D. On the load side of the circuit protective device.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

How many keys must be available for a lock that is used to securely isolate a protective device?

A. 1.

B. 2.

C. 3.

D. 4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Why is safe isolation carried out?

A. To allow earth fault loop impedance testing.

B. To allow phase sequencing testing.

C. To stop RCDs operating when testing.

D. To stop contact with live parts.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Testing is to be carried out at the origin of a large, unoccupied building which has a standby generator. What must be done before tests are carried out?

A. Check the operation of the standby supply.

B. All main protective bonding must be disconnected.

C. Temporary lighting must be installed for all escape routes.

D. The standby supplies must be isolated to ensure safe testing.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The implications of not carrying out a safe isolation could lead to prosecution. Which statutory legislation would be used for this purpose?

A. COSHH.

B. ESCQR.

C. EAWR.

D. BS 7671.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which document is statutory?

A. BS 7671.

B. EAWR.

C. GN3.

D. GS38

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Inspection and Testing Mock

1 Who, under the Electricity at Work Regulations, should the inspector ensure the safety of?

Where is the correct location to test that a lighting circuit is isolated and safe to work on?

How many keys must be available for a lock that is used to securely isolate a protective device?

Why is safe isolation carried out?

Testing is to be carried out at the origin of a large, unoccupied building which has a standby generator. What must be done before tests are carried out?

The implications of not carrying out a safe isolation could lead to prosecution. Which statutory legislation would be used for this purpose?

Which document is statutory?

Which publication does not include model forms that can be used for certification and reporting purposes?

Which test would not apply to an electrical installation forming part of a TN-S system?

Which test could also indicate the supply polarity?

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