Question 1

The term RMS stands for ʺroot-mean-square.ʺ

Accepted Answer

A) True 
 B)False

Question 2

-If R   shorts in Figure 8-2, V   ________.

Accepted Answer

A) decreases 
B) remains the same 
C) increases 
A) decreases 
B) remains the same 
C) increases

Question 3

-Which point in Figure  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 4

While troubleshooting a circuit the voltage seems to be zero; what if any adjustment should be checked on the oscilloscope?

Accepted Answer

A) trigger level 
B) AC/GND/DC switch 
C) focus setting 
D) time division setting 
A) trigger level 
B) AC/GND/DC switch 
C) focus setting 
D) time division setting

Question 5

The symbol for the period of a wave form is:

Accepted Answer

A) W. 
B) T. 
C) P. 
D) F. 
A) W. 
B) T. 
C) P. 
D) F.

Question 6

The AC sine wave varies from zero to its maximum value in accordance with:

Accepted Answer

A) a trigonometric relationship. 
B) a geometric progression. 
C) an algebraic function. 
D) a mathematical formula. 
A) a trigonometric relationship. 
B) a geometric progression. 
C) an algebraic function. 
D) a mathematical formula.

Question 7

The higher a sine waveʹs frequency, the shorter its period.

Accepted Answer

A) True 
 B)False

Question 8

-Calculate the total power dissipation in the circuit in Figure 8-2.

Accepted Answer

A) 182 mW 
B) 64.5 mW 
C) 9.12 mW 
D) 45.6 mW 
A) 182 mW 
B) 64.5 mW 
C) 9.12 mW 
D) 45.6 mW

Question 9

-If you measure about 56 VPP across the source in Figure 8-2, what is the trouble?

Accepted Answer

A)    is open. 
B)    are open. 
C)    is open. 
D) There is no trouble. 56 VPP is a normal measurement for the source voltage. 
E) any of these 
A)    is open. 
B)    are open. 
C)    is open. 
D) There is no trouble. 56 VPP is a normal measurement for the source voltage. 
E) any of these

Question 10

The formula to convert degrees to radians is:

Accepted Answer

A)    
B)    
C)    
D) all of these. 
A)    
B)    
C)    
D) all of these.

Question 11

A square wave is a unique form of the rectangular pulse wave in that:

Accepted Answer

A) the duty cycle is 50%. 
B) the positive and negative halves are equal. 
C) the wave is symmetrical. 
D) all of these 
A) the duty cycle is 50%. 
B) the positive and negative halves are equal. 
C) the wave is symmetrical. 
D) all of these

Question 12

In a two-resistor series circuit VR1 = 6.5 VRMS and VR2 = 3.2 VRMS. ________.

Accepted Answer

A) 9.19 VP 
B) 4.53 VP 
C) 9.7 VP 
D) 13.7 VP 
A) 9.19 VP 
B) 4.53 VP 
C) 9.7 VP 
D) 13.7 VP

Question 13

-This display in Figure 8-3 illustrates maladjustment of which control on the oscilloscope?

Accepted Answer

A) coupling 
B) trigger level 
C) intensity 
D) volts/div 
A) coupling 
B) trigger level 
C) intensity 
D) volts/div

Question 14

A sine waveʹs instantaneous voltage is 0 V at ________ degrees.

Accepted Answer

A) 360 
B) 0 
C) 180 
D) all of these 
A) 360 
B) 0 
C) 180 
D) all of these

Question 15

Current flows both ways simultaneously in an AC circuit.

Accepted Answer

A) True 
 B)False

Question 16

An ac current is inversely proportional to an ac voltage.

Accepted Answer

A) True 
 B)False

Question 17

20 Vrms of alternating current will illuminate a given lamp at the same intensity as 20 V of direct
current.

Accepted Answer

A) True 
 B)False

Question 18

Only frequency increases with the speed of an AC generator.

Accepted Answer

A) True 
 B)False

Question 19

The largest numerical value in the measurement of alternating current is:

Accepted Answer

A) peak to peak. 
B) rms. 
C) average. 
D) peak. 
A) peak to peak. 
B) rms. 
C) average. 
D) peak.

Question 20

A 60 Hz sine wave completes ________ cycles every 10 seconds.

Accepted Answer

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

Exam 8: Circuit Theorems and Conversions

The term RMS stands for ʺroot-mean-square.ʺ

-If R shorts in Figure 8-2, V ________.

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

While troubleshooting a circuit the voltage seems to be zero; what if any adjustment should be checked on the oscilloscope?

The symbol for the period of a wave form is:

The AC sine wave varies from zero to its maximum value in accordance with:

The higher a sine waveʹs frequency, the shorter its period.

-Calculate the total power dissipation in the circuit in Figure 8-2.

-If you measure about 56 VPP across the source in Figure 8-2, what is the trouble?

The formula to convert degrees to radians is:

A square wave is a unique form of the rectangular pulse wave in that:

In a two-resistor series circuit VR1 = 6.5 VRMS and VR2 = 3.2 VRMS. ________.

-This display in Figure 8-3 illustrates maladjustment of which control on the oscilloscope?

A sine waveʹs instantaneous voltage is 0 V at ________ degrees.

Current flows both ways simultaneously in an AC circuit.

An ac current is inversely proportional to an ac voltage.

20 Vrms of alternating current will illuminate a given lamp at the same intensity as 20 V of direct current.

Only frequency increases with the speed of an AC generator.

The largest numerical value in the measurement of alternating current is:

A 60 Hz sine wave completes ________ cycles every 10 seconds.

Quantities and Units

Voltage, Current, and Resistance

Ohms Law

Energy and Power

Series Circuits

Parallel Circuits

Series-Parallel Circuits

Branch, Loop, and Node Analyses

Magnetism and Electromagnetism

Introduction to Alternating Current and Voltage

Capacitors

Inductors

Transformers

RC Circuits

RL Circuits

RlC Circuits and Resonance

Passive Filters

Circuit Theorems in Ac Analysis

Time Response of Reactive Circuits

Three-Phase Systems in Power Applications

Filters