Welcome to your 2365 623 Fault Diagnosis
1.
When should an RCD trip, if the setting of 1 times the rating of the RCD is used
2.
If a copper conductor was halved in length, the resistance would?
3.
Which test is the most logical test to be carried out, to verify a short circuit?
4.
When should an RCD trip, if the setting of 5 times the rating of the RCD is used?
5.
Which of the following would cause insufficient voltage supplying a light circuit?
6.
Which test is the most logical test to be carried out, to verify an earth leakage?
7.
If an MCB has tripped due to a fault, which test would be most suitable to verify the fault?
8.
If 2 cables are connected together in series and measured the overall resistance will?
9.
If two bonding conductors or equal length were connected in parallel, the resistance would?
10.
It is recommended that test instruments are nulled to?
11.
Which of the following is NOT a scale commonly found on an RCD tester?
12.
Which of the following faults, would likely cause a burning smell?
13.
Which of the following should happen in the handover process after fault diagnostics?
14.
Which of the following is likely to cause a transient voltage spike?
15.
Which is one of the main hazards of an old building with insulated pipes coming from old boilers?
16.
Which of the following would cause a loss of supply to an installation?
17.
An intrinsically safe test instrument would be used in?
18.
A test instrument has a calibration date that has passed, what should be your course of action?
19.
The item shown in the photo serves what purpose?
20.
Failure to get a reading of polarity using test method one could indicate?
21.
If the temperature of a conductor decreases, the resistance?
22.
One test that will commonly identify short circuits within an electrical installation is the?
23.
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?
24.
Which of the following is not a requirement of test probes and leads according to GS38?
25.
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?
26.
Which of the following would be most important to be discussed with the client, prior to any fault diagnostics being carried out?
27.
Which is the correct method of disposing of plasterboard on site?
28.
What is the importance of verifying readings obtained with those listed within BS7671 and associated documents?
29.
Which test is the most accurate to test the sensitivity of an RCD?
30.
The insulation resistance test voltage for a 230v installation is?
By Neil