Welcome to your 2365 624 Inspection & testing
1.
Which Appendix in BS7671 contains the model forms for inspection and testing
2.
If two bonding conductors or equal length were connected in parallel the resistance would
3.
Test probes to GS38 should amongst other considerations
4.
A Zs reading is to be entered on a minor works certificate, what is the correct instrument used to determine this reading?
5.
A polarity test is performed on Edison screw lamp holders to?
6.
The scale indicated in the picture is used for what particular test?
7.
Certain installations have additional regulations set in BS7671 which may include specialist knowledge. More information about special locations can be found in
8.
EAWR States that working live is unacceptable unless
9.
Which of the following is not recorded on a minor works certificate?
10.
Polarity can be tested prior to energising using a
11.
A Zs reading is to be entered on a minor works certificate, what is the correct instrument used to determine this reading?
12.
The following readings were taken on a test performed on a ring final circuit, Line to Line 0.8 Ω Neutral to Neutral 0.8 Ω cpc to cpc 0.8 Ω . What would be the expected reading between line and cpc at each socket outlet?
13.
If the ambient temperature increases, the conductor resistance
14.
The most convenient method of determining the value of the prospective short circuit current at the origin of an existing installation is by
15.
An earth fault loop impedance tester records a prospective earth fault current value of 8850 and a prospective short circuit current value of 9190A. What should be the rating of the incoming protective device in terms of fault current?
16.
A test instrument has a calibration date that has passed, what should be your course of action?
17.
The resistance of a bonding conductor will increase if
18.
Isolators are designed to operate under
19.
Before using a multifunction test instrument, what is the MOST important thing should you check for?
20.
Applying the rule of thumb method, the value of prospective short circuit current for a three phase supply should be
21.
Which documentation would you sue for replacing a socket outlet one for one
22.
When a non domestic installation is protected by an RCD, there shall be a fixed notice stating that
23.
The safest method of ensuring that a system is safe to work on is?
24.
The maximum value of earth electrode resistance for a TT installation protected by a 300mA RCD is given by GN3 as
25.
An intrinsically safe test instrument would be used in
26.
Several test instruments are used on an installation, which of the following may give a reading of 89MΩ;?
27.
Which of the following is not a requirement of test probes and leads according to GS38?
28.
A circuit within an old hospital needs to be isolated in order for it to be safely maintained. There is no circuit schedule board, what is the most effective way of determining which circuit breaker feeds the circuit?
29.
It is recommended that test instruments are nulled to
30.
A low resistance ohmmeter should provide a short circuit current not less than
31.
The image represents which type of earthing system?
32.
During a periodic inspection, protective conductors must not be disconnected if
33.
One test that will commonly identify short circuits within an electrical installation is the
34.
Test leads according to GS38 should be
35.
BS7671 has a separate part designated solely to testing and inspection. The legal status of this document is that it is a
By Alan Rogers