Worksheets4019 QUIZ 3: AC Fundamentals (10 MCQ)
Total questions: 10
Worksheet time: 8mins
Name
Class
Date
1.
AC stands for:
a)
Alternating Current
b)
Amplified Current
c)
Accurate Current
d)
Active Current
2.
RMS value is:
a)
Peak × 1.414
b)
Peak × 0.707
c)
Peak ÷ 0.5
d)
Peak × 2
3.
Frequency unit:
a)
Volt
b)
Ampere
c)
Hertz
d)
Coulomb
4.
Malaysia’s supply frequency:
a)
40Hz
b)
50Hz
c)
60Hz
d)
70Hz
5.
1 cycle corresponds to:
a)
90°
b)
120°
c)
180°
d)
360°
6.
A sine wave is:
a)
Symmetrical
b)
Square
c)
Triangle
d)
Sawtooth
7.
AC voltage alternates in:
a)
One direction
b)
Two directions
c)
No direction
d)
Random
8.
Peak-to-peak voltage is:
a)
Vp × 1
b)
Vp × 2
c)
Vrms × 1
d)
Vrms × 2
9.
The device to measure AC waveform is:
a)
Multimeter
b)
Oscilloscope
c)
Wattmeter
d)
Ohmmeter
10.
Reactance exists in:
a)
Resistors
b)
Diodes
c)
Capacitors & Inductors
d)
Switches
100 %
