GN3 gives the maximum stable value of Ze for a TT installation as:

Inspection and test - Paper 4

Quiz
•
Education
•
2nd Grade
•
Hard

James Jones
Used 1+ times
FREE Resource
29 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1660 ohms.
600 ohms.
200 ohms.
100 ohms.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of earthing system relies on a separately supplied earth, usually the sheathing on the cable:
TT.
TN-C-S.
IT.
TN-S.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following would not be one of the human senses to use during the initial verification of an addition to a lighting circuit:
sight.
hearing.
taste.
touch.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
On a standard TT installation, the result of the resistance of the earth electrode and the rated RCD residual operating current should not exceed:
25V.
50V.
110V.
400V.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following protection devices is unlikely to be suited for short circuit currents in the region of 6kA: GN3
BS 3036 semi-enclosed fuse.
BS 88-3 cartridge fuse.
BS 88-2 general purpose fuse.
BS EN 60898 circuit breaker.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The person carrying out inspection and testing must have: GN3 1.2
an inspection and test qualification.
sound knowledge and experience relevant to the installation being inspected.
both (a) and (b).
a current Wiring Regulations qualification.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A British Standard having a BS EN number is a:
European harmonised Standard.
Non-statutory Regulation.
British compliant Standard.
Statutory Regulation.
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