Capstone oral questions ACTUAL EXAM NEWEST VERSION 2025/2026 WI
NGN FORMAT QUESTION AND CORRECT DETAILED ANSWERS WITH RAT
NALES RATED AGRADE
Study online at https://quizlet.com/_h66k8f
1. Apart from HWS what oth- Any metallic surface that may come into contact with an
er equipment should have an exposed live part or comductor
equipotential bond?
2. If the consumer mains are not Not less than the current carrying capacity of the main
protected what is the minimum neutral
size of the MEN link. As/NZS 3000, 5.3.5.2
3. Show and name the parts of the Earth electrode, main earthing conductor, main earthing
earthing system associated with terminal/bar, MEN link, protective earthing conductors,
your installation equipotential bonding
4. What is the maximum distance 2m AS/NZS 3000, 2.3.3.3
above the ground, floor or plat-
form you can install a main switch
5. Can you isolator or switch an No
earthing conductor AS/NZS 3000, 2.3.2.1.1(c)
6. Do circuit neutrals have to be Yes
identified at a switchboard? AS/NZS 3000, 2.9.5.4
7. Can a 2.5mm^2 neutral conductor Yes, if it's the only neutral conductor in the RCD
be connected directly to the load
side terminal of an RCD
8. What is the minimum size un- 10mm^2
derground single-phase domestic
consumer mains cable that can be
connected in WA
9.
1/8
, Capstone oral questions ACTUAL EXAM NEWEST VERSION 2025/2026 WI
NGN FORMAT QUESTION AND CORRECT DETAILED ANSWERS WITH RAT
NALES RATED AGRADE
Study online at https://quizlet.com/_h66k8f
What is the purpose of an MEN Connects the main neutral and main earth conductors
link at the consumer mains switchboard allowing the main
neutral to carry any active to earth fault current occurring
in the installation
10. In a domestic installation, do all Yes
circuit protection devices on a
switchboard have to actuate in
the same direction
11. How would you join the protective By other approved means, ex. Soldering, double screw
earth conductors if an earth link connectors
were not provided on a switch-
board ?
12. How close are you able to clip ca- Not less than 50mm
bles above a ceiling without any AS/NZS 3000, 3.9.4.2
further protection
13. Describe a situation where you In areas of less then 0.6m in height. Where cables are rest-
are not required to clip the cables ing on an immovable continuous surface. (Eves) AS/NZS
in a ceiling space 3000, 3.9.3.1 & 3.9.3.3
14. Is it necessary to submit docu- Yes
mentation when adding a final
sub circuit for an air conditioner in
a house
15. What is the maximum number 15
of 10A socket outlets that can AS/NZS 3018, 6.6.5 table 6.1
be installed on a 2.5mm^2 final
2/8
NGN FORMAT QUESTION AND CORRECT DETAILED ANSWERS WITH RAT
NALES RATED AGRADE
Study online at https://quizlet.com/_h66k8f
1. Apart from HWS what oth- Any metallic surface that may come into contact with an
er equipment should have an exposed live part or comductor
equipotential bond?
2. If the consumer mains are not Not less than the current carrying capacity of the main
protected what is the minimum neutral
size of the MEN link. As/NZS 3000, 5.3.5.2
3. Show and name the parts of the Earth electrode, main earthing conductor, main earthing
earthing system associated with terminal/bar, MEN link, protective earthing conductors,
your installation equipotential bonding
4. What is the maximum distance 2m AS/NZS 3000, 2.3.3.3
above the ground, floor or plat-
form you can install a main switch
5. Can you isolator or switch an No
earthing conductor AS/NZS 3000, 2.3.2.1.1(c)
6. Do circuit neutrals have to be Yes
identified at a switchboard? AS/NZS 3000, 2.9.5.4
7. Can a 2.5mm^2 neutral conductor Yes, if it's the only neutral conductor in the RCD
be connected directly to the load
side terminal of an RCD
8. What is the minimum size un- 10mm^2
derground single-phase domestic
consumer mains cable that can be
connected in WA
9.
1/8
, Capstone oral questions ACTUAL EXAM NEWEST VERSION 2025/2026 WI
NGN FORMAT QUESTION AND CORRECT DETAILED ANSWERS WITH RAT
NALES RATED AGRADE
Study online at https://quizlet.com/_h66k8f
What is the purpose of an MEN Connects the main neutral and main earth conductors
link at the consumer mains switchboard allowing the main
neutral to carry any active to earth fault current occurring
in the installation
10. In a domestic installation, do all Yes
circuit protection devices on a
switchboard have to actuate in
the same direction
11. How would you join the protective By other approved means, ex. Soldering, double screw
earth conductors if an earth link connectors
were not provided on a switch-
board ?
12. How close are you able to clip ca- Not less than 50mm
bles above a ceiling without any AS/NZS 3000, 3.9.4.2
further protection
13. Describe a situation where you In areas of less then 0.6m in height. Where cables are rest-
are not required to clip the cables ing on an immovable continuous surface. (Eves) AS/NZS
in a ceiling space 3000, 3.9.3.1 & 3.9.3.3
14. Is it necessary to submit docu- Yes
mentation when adding a final
sub circuit for an air conditioner in
a house
15. What is the maximum number 15
of 10A socket outlets that can AS/NZS 3018, 6.6.5 table 6.1
be installed on a 2.5mm^2 final
2/8
