Welcome to your 2365 623 Fault Diagnosis
Which is one of the main hazards of an old building with insulated pipes coming from old boilers?
What is considered Low Voltage?
When are GS38 leads required?
When are GS38 leads required?
The procedure for proving dead should be by use of a proprietary test lamp or two pole voltage detecting device as recommended by?
The most serious result of basic contact with a live conductor would be?
Which of the following is not a requirement of test probes and leads according to GS38?
The correct safe isolation procedure on a 3 phase circuit will result in a voltage indicating device being connected across terminals, in how many different combinations to ensure it is adequately proved dead?
The item shown in the photo serves what purpose?
The safest and most convenient way of proving the reliability of a voltage indicating device is?
The non-statutory document detailing the care and use of tests instruments, leads and probes is?
Before beginning fault finding on a domestic property, what should you do?
What documentation may be used to record fault diagnostics work?
Which is likely to be the first source to help with fault diagnostics?
Which of the IET Guidance Notes will be most useful for fault diagnostics?
Which of the following will be most useful for fault finding diagnostics?
Which of the following is the most likely of implications caused from fault diagnostics?
Which of the following is the most likely of implications caused from an exposed terminal?
Which of the following documentation would likely be used for any remedial work that has been carried out
Which of the following would be most important to be discussed with the client, prior to any fault diagnostics being carried out?
Which of the following should happen in the handover process after fault diagnostics?
Which of the following should happen in the handover process after fault diagnostics?
Which of the following could cause an SPD to operate?
Which of the following could cause an SPD to operate
Which of the following would be the most likely cause of the final light in a lighting circuit not working, when the other lights do
If a two way switch is not always able to operate lights when it is in the correct position, what is the most likely cause?
If equipment plugged into a socket outlet is not working, which of the following is the likely cause if the protective device hasn't tripped?
If a copper busbar is drawing a current of 300A, what will be the physical effect on the actual busbar?
Which of the following is likely to cause a transient voltage spike?
Which of the following is likely to cause a transient voltage spike
Which device will protect circuits and equipment from transient voltages?
Which of the following would cause a loss of supply to an installation?
Which of the following would cause a loss of supply to an installation
Which of the following would most likely cause a motor to not work, if the circuit is healthy?
Which of the following would cause insufficient voltage supplying a light circuit?
If an MCB is able to reset after a small duration of time after it has been operated, what is the likely cause?
If an MCB is not able to reset after a small duration of time after it has been operated, what is the likely cause?
If an RCD has operated, which fault is most likely to cause this?
Which of the following faults, would likely cause a burning smell?
Which logical stage should be carried out first, before carrying out fault diagnosis?
Which logical step would come first, when approaching fault diagnosis?
The insulation resistance test voltage for a SELV installation is?
An insulation resistance test is performed on a standard final circuit, what should the instrument be set to measure in?
Which of the following is NOT a scale commonly found on an RCD tester?
One test that will commonly identify short circuits within an electrical installation is the?
Which of the following would NOT be acceptable for performing an insulation resistance test?
The insulation resistance test voltage for a 230v installation is?
Which of the following tests should be performed specifically on a three-phase circuit?
An intrinsically safe test instrument would be used in?
A test instrument has a calibration date that has passed, what should be your course of action?
The test designed to determine the correct connection of all the protective conductors within installation is known as the?
A low reading ohmmeter used to perform a continuity of protective conductor test, should record results in?
Before using a multifunction test instrument, what is the MOST important thing should you check for?
To maintain accurate readings, an instrument should?
When should an RCD trip, if the setting of half the rating of the RCD is used
When should an RCD trip, if the setting of 1 times the rating of the RCD is used
Which test is the most accurate to test the sensitivity of an RCD?
When should an RCD trip, if the setting of 5 times the rating of the RCD is used?
It is recommended that test instruments are nulled to?
Failure to get a reading of polarity using test method one could indicate?
Which of the following would an inspector check, for a suspected voltage drop within a circuit?
What is the importance of verifying readings obtained with those listed within BS7671 and associated documents?
If 2 cables are connected together in series and measured the overall resistance will?
Once a short circuit fault has been diagnosed and rectified, what is the next step in regards to testing?
If an MCB has tripped due to a fault, which test would be most suitable to verify the fault?
If an RCD has tripped due to a fault, which test would be most suitable to verify the fault?
Which test is the most logical test to be carried out, to verify a short circuit?
Which test is the most logical test to be carried out, to verify an earth leakage?
Which test is the most logical test to be carried out, to verify an open circuit?
Which test is the most logical test to be carried out, to verify a cross connection?
If 2 different sized cables were connected together in parallel and measured using a low resistance ohmmeter, the overall resistance will
If two bonding conductors or equal length were connected in parallel, the resistance would?
During a continuity of Ring final conductors test, 10 Sockets give a R1+R2 reading of 0.68Ω, but one socket gives a reading of 0.92Ω. What might that indicate?
During a continuity of Ring final conductors test in a domestic building, ten sockets give a R1+R2 reading of 0.5Ω, but an additional three sockets in the garage from the same circuit gives readings of 0.6Ω, 0.7Ω and 0.8Ω respectively. What might that indicate?
If three conductors equal in length and with a resistance of 0.15Ω each are connected in series, what is the total resistance?
If a copper conductor was halved in length, the resistance would?
The minimum insulation resistance value for a SELV installation, according to BS7671 IET Wiring Regulations is?
If the temperature of a conductor decreases, the resistance?
Which of the following could be the most likely factor that could affect rectifying a fault?
Which of the following could be the most likely factor that could affect rectifying a fault?
Which of the following could be the most likely factor that could affect rectifying a fault?
Which is the correct method of disposing of Asbestos?
Which is the correct method of disposing of plasterboard on site?
A domestic heating circuit has been rectified and a new programmer was installed, what should the electrician do before leaving site?
A 3 phase motor circuit has been rectified, which of the following test should have been carried out on the circuit?
A polarity test is conducted to verify that?
