
Electrical Supply Quiz
Quiz
•
Education
•
12th Grade
•
Practice Problem
•
Easy
Michael Cooke
Used 1+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of supply can star-connected systems feed?
Only domestic properties
Only commercial properties
Both domestic and commercial properties
Neither domestic nor commercial properties
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the single-phase supply voltage when measuring across a phase to neutral?
110V
230V
400V
500V
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the three-phase supply voltage when measuring across any two phases?
110V
230V
400V
500V
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a star connection, what happens to the current?
It increases
It decreases
It does not change
It fluctuates
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a delta connection, how is the line current related to the phase current?
Equal to the phase current
Twice the phase current
√3 times the phase current
Half the phase current
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is a single-phase supply insufficient for large commercial outlets?
It is too expensive
It cannot meet the current demand
It is too complex
It is not reliable
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the benefit of distributing loads in a three-phase supply?
Reduces cost
Balances each phase with the same loading
Increases power
Decreases efficiency
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