Welcome to your Inspection and Testing
1.
Isolators are designed to operate under
2.
An insulation resistance test on a large installation gives unexpectedly low readings that are below the minimum expected values according to BS7671. What could be your course of action?
3.
A circuit is wired in 2.5/1.5mm twin and earth Thermoplastic PVC and is 21m long. The Ib is 17A, In is 20A and R1+Rn is 0.31Ω. What would the volt drop be?
4.
The main risk of not carrying out the full safe isolation procedure when working on live circuits is
5.
If an installation has no bonding to the water pipes what outcome would this be recorded as on an EICR?
6.
Which of the following would justify a C1 Code for a Periodic Inspection?
7.
Prior to performing an insulation resistance test, you should?
8.
The maximum value of earth electrode resistance for a TT installation protected by a 30mA RCD by GN3 as
9.
What needs to be verified during the inspection of a new installation?
10.
What circumstance would require an Electrical Installation Condition Report to be issued?
11.
The rule of thumb value will compare the value from the tables in BS7671 and the actual measured value when the tabulated value is multiplied by what fraction?
12.
The Electricity at Work Regulations is classed as a?
13.
Which one of the following reasons would require an Electrical Installation Certificate
14.
An existing single phase installation in the middle of London has 12 circuits protected by BS3036 fuses. A periodic inspection shows its Ze measured at 0.09Ω;. What is potentially dangerous about this reading?
15.
The scale indicated in the picture is used for the?
16.
Which of the following would justify a C2 Code for a Periodic Inspection?
17.
The maximum value of earth electrode resistance for a TT installation protected by a 500mA RCD is given by GN3 as
18.
Which document would be completed for an installation of a new shower circuit to an existing installation?
19.
Continuity of Ring Final Conductors should be performed on initial verification using
20.
Which one of the following reasons would require an initial verification
21.
An RCD test should indicate a reading in
22.
Which Human sense is most suitable during the inspection for checking the label or warning notice has been placed?
23.
Cross connecting the incoming phase and outgoing cpc and vice versa on a ring final circuit test will give the?
24.
If a 20mm knockout is open, has no grommet and there is access to live parts what outcome would this be recorded as on an EICR?
25.
The image represents which type of earthing system?
26.
If two bonding conductors of equal length, were connected in parallel the resistance would?
27.
Three resistors of value 1.0Ω; 1.2Ω; and 1.8Ω; are connected in series across a 24V supply. What is the total current drawn in the circuit?
28.
The resistance of a bonding conductor will increase if?
29.
If upon inspection there is a socket greater than 2.5m away from Zone 1 in a bathroom but with no RCD protection, what outcome would this be recorded as on an EICR?
30.
The test designed to determine the correct connection of all the protective conductors within installation is known as the?
By Neil