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4019 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