GMJ 9189 phase 3 UNIT 312 ws 2
Authored by Glen Johnson
Used 12+ times
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21 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the typical voltages present in the following situations?
a) In a single-phase supply between live and neutral:
110v
230v
400v
1000v
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1. What are the typical voltages present in the following situations?
b) In a single-phase supply between live and earth:
110v
230v
400v
1000v
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the typical voltages present in the following situations?
c) In a three-phase supply between L1 and earth:
110v
230v
400v
1000v
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the typical voltages present in the following situations?
d) In a single-phase supply between L1 and L2:
110v
230v
400v
1000v
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
List the three typical earthing system arrangements found in a dwelling.
TT
TN-S
TN-F-R
TN-C-S
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
The image shows a typical generation process. What voltages are present at points A and B?
A: 22,000V AC
B: 275,000V or 400,000V AC
A: 22,000V DC
B: 275,000V or 400,000V DC
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Identify the components shown in the image.
Suppliers 100A main fuse
Main Earth Bar (MET)
MCB
ECB
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