Question 1

For a series RLC circuit, ZT can be less than either XL or XC alone.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following meter movements will not read properly in an ac circuit?

Accepted Answer

A)  Thermal type 
B)  Electromagnetic type 
C)  D'Arsonval type 
D)  Rectifier type 
A)  Thermal type 
B)  Electromagnetic type 
C)  D'Arsonval type 
D)  Rectifier type

Question 3

XL is a phasor quantity with a

Accepted Answer

A)  45° phase angle 
B)  90° phase angle 
C)  0° phase angle 
D)  180° phase angle 
A)  45° phase angle 
B)  90° phase angle 
C)  0° phase angle 
D)  180° phase angle

Question 4

What is a numerical ratio with a value between 0 and 1 that is equal to the cosine of the phase angle?

Accepted Answer

A)  Reactance factor 
B)  Power factor 
C)  Resistance factor 
D)  Phase factor 
A)  Reactance factor 
B)  Power factor 
C)  Resistance factor 
D)  Phase factor

Question 5

For a parallel RLC circuit, IT can be less than either IL or IC alone.

Accepted Answer

A) True 
 B)False

Question 6

Total R and net X can be added by phasors to find the total ohms of opposition in an entire series circuit.

Accepted Answer

A) True 
 B)False

Question 7

In using double subscripts, note that the first letter in the subscript is the point of measurement with respect to the second.

Accepted Answer

A) True 
 B)False

Question 8

What can be calculated as I2R?

Accepted Answer

A)  Real power 
B)  Apparent power 
C)  Reactive power 
D)  Power factor 
A)  Real power 
B)  Apparent power 
C)  Reactive power 
D)  Power factor

Question 9

Which of the following meter movements use a heating effect of the current, which is independent of polarity?

Accepted Answer

A)  Rectifier type 
B)  Thermal type 
C)  Electromagnetic type 
D)  D'Arsonval type 
A)  Rectifier type 
B)  Thermal type 
C)  Electromagnetic type 
D)  D'Arsonval type

Question 10

Resistive power that is dissipated as heat is

Accepted Answer

A)  real power 
B)  apparent power 
C)  reactive power 
D)  VAR 
A)  real power 
B)  apparent power 
C)  reactive power 
D)  VAR

Exam 24: Alternating Current Circuits

For a series RLC circuit, ZT can be less than either XL or XC alone.

Which of the following meter movements will not read properly in an ac circuit?

XL is a phasor quantity with a

What is a numerical ratio with a value between 0 and 1 that is equal to the cosine of the phase angle?

For a parallel RLC circuit, IT can be less than either IL or IC alone.

Total R and net X can be added by phasors to find the total ohms of opposition in an entire series circuit.

In using double subscripts, note that the first letter in the subscript is the point of measurement with respect to the second.

What can be calculated as I2R?

Which of the following meter movements use a heating effect of the current, which is independent of polarity?

Resistive power that is dissipated as heat is

Introduction

Electricity

Resistors

Ohms Law

Series Circuits

Parallel Circuits

Series-Parallel Circuits

Voltage Dividers and Current Dividers

Analog and Digital Multimeters

Kirchhoff S Laws

Network Theorems

Conductors and Insulators

Batteries

Magnetism

Electromagnetism

Alternating Voltage and Current

Capacitance

Capacitive Reactance

Capacitive Circuits

Inductance

Inductive Reactance

Inductive Circuits

RC and LR Time Constants

Complex Numbers for Ac Circuits

Resonance

Filters

Three-Phase Ac Power Systems

Diodes and Diode Applications

Bipolar Junction Transistors

Transistor Amplifiers

Field Effect Transistors

Power Amplifiers

Thyristors

Operational Amplifiers

Filters

For a series RLC circuit, Z_T can be less than either X_L or X_C alone.

X_L is a phasor quantity with a

For a parallel RLC circuit, I_T can be less than either I_L or I_C alone.

What can be calculated as I²R?