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2561128
Star & Delta Revision OB
Description
Level 2 Science Revision: C&G 2365
No tags specified
science electrical installations
btec
Quiz by
Oliver Balay
, updated more than 1 year ago
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Created by
Oliver Balay
over 9 years ago
117
4
0
Resource summary
Question 1
Question
What is the name of the configuration in this image?
Image:
24be33de-faca-4c80-a726-af1a5c43d103 (image/jpg)
Answer
Star Point
Star
Star/Delta
Delta
Question 2
Question
The voltage across a Star configuration will always be the same.
Answer
True
False
Question 3
Question
The following image shows a Star configuration.
Image:
acb2af59-55f1-4df4-9998-02cda6c28ccd (image/jpg)
Answer
True
False
Question 4
Question
What stays the same across a Star configuration?
Image:
7daf1fbf-919c-45d1-8aca-decb7f2606cc (image/jpg)
Answer
Power
Voltage
Current
Resistance
Question 5
Question
A Delta connected load has a phase voltage of 400V. What is the line voltage?
Answer
230V
400V
200V
133V
Question 6
Question
What is the formula for calculating current in a Star configuration?
Answer
IL = √3 x IP
IL = √3 ÷ IP
IP = UP
IP = IL
Question 7
Question
When connecting an ammeter across a Star or Delta configuration, you must connect it in series.
Answer
True
False
Question 8
Question
When connecting a voltmeter across a Star or Delta configuration, you must connect it in series.
Answer
True
False
Question 9
Question
A star configuration allows you to connect a 230V supply only.
Answer
True
False
Question 10
Question
The neutral conductor at the transformer is also called the star point.
Image:
ac3ed07a-c83c-4bfc-a59e-2b7f83f3d910 (image/jpg)
Answer
True
False
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