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What is the main purpose of an Initial Verification?
What situation requires the issuing of a Minor Electrical Installation Works Certificate?
Which statutory document contains specific information relevant to Initial Verification?
What is the minimum voltage which requires the test leads and probes to comply with GS38?
How many voltage measurements are required to confirm that a three-phase four-wire installation is safely isolated?
What precaution is required before carrying out a test of external earth fault loop impedance (Ze) so as to avoid danger to users of an installation?
Why does BS 7671 require inspection to be carried out before testing?
Which situation will not require a label stating, ‘Safety Electrical Connection – Do Not remove’?
What must be checked when inspecting a consumer unit for compliance with Basic Protection requirements?
Which two senses are used when inspecting the terminations at a newly installed motor?
What action must be taken when a loose connection is found to a pipe during the inspection of a main protective bonding conductor termination?
What best describes the protection offered by IPXXB?
What is the minimum IP rating for electrical equipment installed in Zone 2 of a bathroom?
What instrument would give the most accurate results when carrying out an earth electrode resistance test?
Why does BS 7671 give a defined sequence of tests when carrying out Initial Verification?
Which test method is used to verify that extraneous conductive parts of an installation are effectively connected to the MET?
What is the main purpose of verifying that extraneous conductive parts of an installation are effectively connected to the MET?
Where on a lighting circuit would a test of continuity of protective conductors be carried out?
What would cause the value of r2 to be higher than r1 and rn when carrying out step 1 of a continuity of ring-final circuit test?
What is the test voltage for an insulation resistance test carried out on a 230 V circuit containing socket-outlets with surge protection devices which cannot be removed?
Questions 23 to 25 relate to the following scenario:
The conductors of a newly installed ring final circuit are to be tested for continuity. The circuit is wired in PVC single core cables contained in PVC conduit. All circuit conductors are 2.5mm2 and the end to end length of each loop is 75m.
What action is required regarding the instrument test leads?
What is the most likely cause of significantly different readings at each socket-outlet when carrying out stage 3, as shown in GN3, during testing of a newly installed ring final circuit?
What is the most appropriate method of verifying the polarity of the ring final circuit?
What would be the correct procedure to confirm that the existing electrical installation in a dwelling is suitable for the additional wiring of an extension?
What is the purpose of a periodic inspection and test relating to the safety of the building?
What is the minimum level of IP protection for the opening shown as Item A in Figure 1?
What is the minimum level of IP protection for the accessible top surface of a consumer unit?
Which publication gives detailed information for carrying out testing of electrical installations?
What would be agreed with the client and recorded as a limitation for a periodic inspection and test?
Which statutory document includes the requirements for working on live conductors?
What action should the inspector take, both before and after testing, to confirm isolation
of the supply?
Questions 49 to 51 relate to the following scenario.
An inspection is to be carried out at the termination of the circuit conductors inside a terminal box, as shown in Figure 2.
Which human sense is best used to confirm the terminals are suitably tightened?
Questions 49 to 51 relate to the following scenario.
An inspection is to be carried out at the termination of the circuit conductors inside a terminal box, as shown in Figure 2.
What is confirmed when inspecting the conductor insulation?
Questions 49 to 51 relate to the following scenario.
An inspection is to be carried out at the termination of the circuit conductors inside a terminal box, as shown in Figure 2.
Which classification code would be given on the Schedule of Inspections for the situation shown in Figure 3?
Which classification code indicates that there is a non-compliance which is identified as ‘improvement recommended’?
Which human senses would be best used to determine excess arcing at a contactor during a walk around survey?
Questions 54 to 57 relate to the following scenario.
A test is to be carried out to confirm the continuity of the main protective bonding conductor to the metallic water installation pipework in a commercial premises.
What is the risk if the installation is not safely isolated for this test?
Questions 54 to 57 relate to the following scenario.
A test is to be carried out to confirm the continuity of the main protective bonding conductor to the metallic water installation pipework in a commercial premises.
What is the purpose of the test of continuity of main protective bonding conductors?
Questions 54 to 57 relate to the following scenario.
A test is to be carried out to confirm the continuity of the main protective bonding conductor to the metallic water installation pipework in a commercial premises.
What important check must be made with the instrument leads before a reading is taken?
Questions 54 to 57 relate to the following scenario.
A test is to be carried out to confirm the continuity of the main protective bonding conductor to the water installation pipework in a commercial premises.
Which test method is used for this test?
A 10 mm2 main protective bonding conductor is 37.5 m in length.
What is the expected measured resistance when testing the conductor?
What is the most likely cause of the measured value being much higher than the calculated value?
What is confirmed by an earth fault loop impedance test on a radial power circuit?