
Cable Selection and Current Rating Quiz
Authored by Robert Kelly
Construction
Vocational training
Used 2+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the significance of surrounding temperature in cable selection?
It affects the color of the cable
It increases cable resistance and may melt insulation
It determines the length of the cable
It changes the cable's material
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What does I_n stand for in the cable selection criteria?
Design current of the circuit
Rated current or current setting of protective device
Tabulated current carrying capacity
Maximum voltage drop
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the cable rating (Iz) calculated for the circuit?
55A
57A
30A
28.26A
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which appendix provides the correction factor for ambient temperature?
Appendix 4
Appendix 3
Appendix 5
Appendix 2
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the installation method reference for the cable?
Table 4A2 Reference Method 100
Table 4B1 Reference Method 200
Table 4C1 Reference Method 300
Table 4D5 Reference Method 400
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the volt drop per ampere metre for a 16mm² cable according to Table 4D5 Column 8?
1.8mV
2.8mV
3.8mV
4.8mV
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the calculated voltage drop for a 16mm² cable with a length of 18 metres and a design current of 28.26A?
0.42V
1.42V
2.42V
3.42V
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