Welcome to your 2365 623 Fault Diagnosis. This mock exam is not a substitute for proper teaching or revision and should only be used as a resource to prepare learners for the exam. The questions (along with the wording and diagrams) contained within the bank of this exam are purely made up by our lecturers and not copied from any actual qualification exam. So while this is an excellent free revision resource, please do not rely on these exam questions alone to help you be successful within your qualifications. When you are ready, please press "start quiz".
1.
Which of the following could be the most likely factor that could affect rectifying a fault?
2.
It is recommended that test instruments are nulled to?
3.
Which of the following would cause insufficient voltage supplying a light circuit?
4.
Which of the following would most likely cause a motor to not work, if the circuit is healthy?
5.
The test designed to determine the correct connection of all the protective conductors within installation is known as the?
6.
Which of the following would NOT be acceptable for performing an insulation resistance test?
7.
When are GS38 leads required?
8.
If 2 different sized cables were connected together in parallel and measured using a low resistance ohmmeter, the overall resistance will
9.
Which device will protect circuits and equipment from transient voltages?
10.
When should an RCD trip, if the setting of 1 times the rating of the RCD is used
11.
An intrinsically safe test instrument would be used in?
12.
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?
13.
If two bonding conductors or equal length were connected in parallel, the resistance would?
14.
Which logical stage should be carried out first, before carrying out fault diagnosis?
15.
Failure to get a reading of polarity using test method one could indicate?
16.
Which of the following is likely to cause a transient voltage spike
17.
A test instrument has a calibration date that has passed, what should be your course of action?
18.
Which of the following would be most important to be discussed with the client, prior to any fault diagnostics being carried out?
19.
Which of the following is not a requirement of test probes and leads according to GS38?
20.
If three conductors equal in length and with a resistance of 0.15Ω each are connected in series, what is the total resistance?
21.
Which of the following would cause a loss of supply to an installation?
22.
Which of the following could be the most likely factor that could affect rectifying a fault?
23.
Which is likely to be the first source to help with fault diagnostics?
24.
To maintain accurate readings, an instrument should?
25.
If an MCB has tripped due to a fault, which test would be most suitable to verify the fault?
26.
Which test is the most logical test to be carried out, to verify an earth leakage?
27.
If an MCB is not able to reset after a small duration of time after it has been operated, what is the likely cause?
28.
One test that will commonly identify short circuits within an electrical installation is the?
29.
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?
30.
A 3 phase motor circuit has been rectified, which of the following test should have been carried out on the circuit?
By Neil