
Alternating and Direct Current

Quiz
•
Other
•
Professional Development
•
Medium
Reini Hj Bujang
Used 2+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
DIRECT CURRENT is an electric current which flows ___ at ___ value over a period of time.
in one direction, constant
in one direction, varying
back and forth, constant
back and forth, varying
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
ALTERNATING CURRENT is an electric current which flows ___ at ___ value over a period of time.
in one direction, constant
in one direction, varying
back and forth, constant
back and forth, varying
3.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Which of the following are types of DIRECT currents and voltages?
4.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Which of the following are types of ALTERNATING currents and voltages?
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pulsating Direct Current is produced by converting an AC voltage into a DC voltage by means of ___ circuit.
inductor
diode
rectifier
capacitor
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Three-Phase AC voltages are generated when 3 sets of coil of wires are rotated and cuts a magnetic field. These 3 voltages are displaced by ___ from each other.
30 degrees
120 degrees
180 degrees
360 degrees
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In AC 3-phase 4-wire system, what is the voltage between phase to phase?
550V
440V
230V
110V
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