Question 1

Single -phase power cannot be converted to three -phase power.

Accepted Answer

A) True 
 B)False

Question 2

The period of most AC waveforms is measured in units of:

Accepted Answer

A) alternations. 
B) cycles. 
C) seconds. 
D) revolutions. 
A) alternations. 
B) cycles. 
C) seconds. 
D) revolutions.

Question 3

-Find PR1 in Figure 8 -2.

Accepted Answer

A) 0 W 
B) 48.9 mW 
C) 196 mW 
D) 97.8 mW 
A) 0 W 
B) 48.9 mW 
C) 196 mW 
D) 97.8 mW

Question 4

The output impedance of a function generator is usually

Accepted Answer

A) 600 Ω 
B) 50 Ω 
C) 75 Ω 
D) any of the above 
A) 600 Ω 
B) 50 Ω 
C) 75 Ω 
D) any of the above

Question 5

-Which point in Figure 8 -1 is 180° away from point E?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
A) A 
B) B 
C) C 
D) D

Question 6

Troubleshooting an AC circuit can be performed with which of the following tools?

Accepted Answer

A) digital multimeter 
B) analog voltmeter 
C) oscilloscope 
D) any of the above 
A) digital multimeter 
B) analog voltmeter 
C) oscilloscope 
D) any of the above

Question 7

Only frequency increases with the speed of an AC generator.

Accepted Answer

A) True 
 B)False

Question 8

-VPP is measured between points in Figure 8 -1.

Accepted Answer

A) G and I 
B) C and H 
C) D and F 
D) A and B 
A) G and I 
B) C and H 
C) D and F 
D) A and B

Question 9

What is the instantaneous voltage at 284° on a 22 VPP sine wave?

Accepted Answer

A) 0.33 V 
B) -10.7 V 
C) -2.66 V 
D) 10.7 V 
A) 0.33 V 
B) -10.7 V 
C) -2.66 V 
D) 10.7 V

Question 10

-Find RT in Figure 8 -2.

Accepted Answer

A) 4.7 kΩ 
B) 4.77 kΩ 
C) 1.13 kΩ 
D) 6.2 kΩ 
A) 4.7 kΩ 
B) 4.77 kΩ 
C) 1.13 kΩ 
D) 6.2 kΩ

Question 11

Commercial line voltages are usually square waves at a frequency of 60 Hz.

Accepted Answer

A) True 
 B)False

Question 12

-Which one of the following represents the value at point G in Figure 8 -1?

Accepted Answer

A) the peak voltage 
B) the RMS voltage 
C) the frequency 
D) the period 
A) the peak voltage 
B) the RMS voltage 
C) the frequency 
D) the period

Question 13

A 10 VP sine wave is equal to _ _.

Accepted Answer

A) 100 VPP 
B) 20 VPP 
C) 5 VPP 
D) none of the above 
A) 100 VPP 
B) 20 VPP 
C) 5 VPP 
D) none of the above

Question 14

A 60 Hz sine wave completes cycles every 10 seconds.

Accepted Answer

A) 1/16 
B) 600 
C) 10 
D) 6 
A) 1/16 
B) 600 
C) 10 
D) 6

Single -phase power cannot be converted to three -phase power.

The period of most AC waveforms is measured in units of:

-Find PR1 in Figure 8 -2.

The output impedance of a function generator is usually

-Which point in Figure 8 -1 is 180° away from point E?

Troubleshooting an AC circuit can be performed with which of the following tools?

Only frequency increases with the speed of an AC generator.

-VPP is measured between points in Figure 8 -1.

What is the instantaneous voltage at 284° on a 22 VPP sine wave?

-Find RT in Figure 8 -2.

Commercial line voltages are usually square waves at a frequency of 60 Hz.

-Which one of the following represents the value at point G in Figure 8 -1?

A 10 VP sine wave is equal to _ _.

A 60 Hz sine wave completes cycles every 10 seconds.

Systems, Quantities, and Units

Voltage, Current, and Resistance

Ohms Law, Energy, and Power

Series Circuits

Parallel Circuits

Series-Parallel Circuits

Magnetism and Electromagnetism

Capacitors

Rccircuits

Inductors

Rlcircuits

Rlccircuits and Resonance

Transformers

Time Response of Reactive Circuits

Filters

Exam 8: Introduction to Alternating Current and Voltage

Single -phase power cannot be converted to three -phase power.

The period of most AC waveforms is measured in units of:

-Find PR1 in Figure 8 -2.

The output impedance of a function generator is usually

-Which point in Figure 8 -1 is 180° away from point E?

Troubleshooting an AC circuit can be performed with which of the following tools?

Only frequency increases with the speed of an AC generator.

-VPP is measured between points in Figure 8 -1.

What is the instantaneous voltage at 284° on a 22 VPP sine wave?

-Find RT in Figure 8 -2.

Commercial line voltages are usually square waves at a frequency of 60 Hz.

-Which one of the following represents the value at point G in Figure 8 -1?

A 10 VP sine wave is equal to _ _.

A 60 Hz sine wave completes cycles every 10 seconds.

Systems, Quantities, and Units

Voltage, Current, and Resistance

Ohms Law, Energy, and Power

Series Circuits

Parallel Circuits

Series-Parallel Circuits

Magnetism and Electromagnetism

Capacitors

Rccircuits

Inductors

Rlcircuits

Rlccircuits and Resonance

Transformers

Time Response of Reactive Circuits

Filters