ATT FC COMP TEST UPDATED Study
Guide QUESTIONS AND CORRECT
ANSWERS
What three factors determine the severity of an electric shock? - CORRECT
ANSWERS 1) Amount of current flowing through the body, 2) Path of
current through the body, 3) Length of time the body is in the circuit
How much current can be lethal? - CORRECT ANSWERS 50-150
milliamperes
How much more DC than AC does it take to freeze a body to a conductor? -
CORRECT ANSWERS 5 times: 12 ma AC, 60 ma DC
What are three types of burns? - CORRECT ANSWERS 1) Electrical, 2)
Arc, 3) Thermal Contact
What are three well-known examples of electrical protection devices -
CORRECT ANSWERS 1) Fuse, 2) Circuit Breakers, 3) Ground-Fault
Circuit Interrupters (GFCIs)
Never use ____ or ____ to extinguish an electrical fire because they are
electrically conductive substances. - CORRECT ANSWERS water,
foam
What are the 4 steps that should be taken in the case of an electrical fire? -
CORRECT ANSWERS 1) de-energize, 2) call the fire department, 3)
control / put out the fire, 4) report fire
,Schematic diagrams are drawn so that the date or signal flows through the
circuit from ____ to ____. - CORRECT ANSWERS left, right
What are the two methods to troubleshoot a circuit? - CORRECT ANSWERS
1) trial and error, 2) logical procedure
What are the four steps to troubleshooting a circuit? - CORRECT ANSWERS
1) Analyze the circuit, 2) Check the setup, 3) Calculate and measure
values, 4) Check the results.
What are three characteristics of an open? - CORRECT ANSWERS 1)
infinite resistance, 2) no circuit current, 3) measure applied voltage
What are three characteristics of a short? - CORRECT ANSWERS 1) no
resistance, 2) increases circuit current, 3) measures 0 voltage
What are the three characteristics of a changed value? - CORRECT ANSWERS
1) resistance increases or decreases, 2) increases or decreases circuit
current, 3) measures voltage other than calculated
What is a representation of AC voltage or current? - CORRECT ANSWERS
The sine wave
____ is determined by the number of cycles that occur in one second. -
CORRECT ANSWERS Frequency
What is the basic unit of measurement for frequency? - CORRECT ANSWERS
the Hertz (Hz)
, ____ is the length of time required to complete one cycle of an AC sine wave. -
CORRECT ANSWERS Period
The symbol for period is ____? - CORRECT ANSWERS T
Time is expressed as a ____. - CORRECT ANSWERS decimal part of a
second
The formula for period is ____. - CORRECT ANSWERS T=1/f
____ is the distance from beginning to end of one complete cycle of an AC sine
wave. - CORRECT ANSWERS Wavelength
The symbol for wavelength is ____. - CORRECT ANSWERS λ
(lambda)
Wavelength is expressed in ____ or ____. - CORRECT ANSWERS
meters or centimeters
The formula for wavelength is ____. - CORRECT ANSWERS λ = 300 x
10^6 / f - where f is Hertz
A changed value component changes ____ and ____. - CORRECT ANSWERS
ZT, IT
A ____ eliminates the component from the circuit. - CORRECT ANSWERS
short
Guide QUESTIONS AND CORRECT
ANSWERS
What three factors determine the severity of an electric shock? - CORRECT
ANSWERS 1) Amount of current flowing through the body, 2) Path of
current through the body, 3) Length of time the body is in the circuit
How much current can be lethal? - CORRECT ANSWERS 50-150
milliamperes
How much more DC than AC does it take to freeze a body to a conductor? -
CORRECT ANSWERS 5 times: 12 ma AC, 60 ma DC
What are three types of burns? - CORRECT ANSWERS 1) Electrical, 2)
Arc, 3) Thermal Contact
What are three well-known examples of electrical protection devices -
CORRECT ANSWERS 1) Fuse, 2) Circuit Breakers, 3) Ground-Fault
Circuit Interrupters (GFCIs)
Never use ____ or ____ to extinguish an electrical fire because they are
electrically conductive substances. - CORRECT ANSWERS water,
foam
What are the 4 steps that should be taken in the case of an electrical fire? -
CORRECT ANSWERS 1) de-energize, 2) call the fire department, 3)
control / put out the fire, 4) report fire
,Schematic diagrams are drawn so that the date or signal flows through the
circuit from ____ to ____. - CORRECT ANSWERS left, right
What are the two methods to troubleshoot a circuit? - CORRECT ANSWERS
1) trial and error, 2) logical procedure
What are the four steps to troubleshooting a circuit? - CORRECT ANSWERS
1) Analyze the circuit, 2) Check the setup, 3) Calculate and measure
values, 4) Check the results.
What are three characteristics of an open? - CORRECT ANSWERS 1)
infinite resistance, 2) no circuit current, 3) measure applied voltage
What are three characteristics of a short? - CORRECT ANSWERS 1) no
resistance, 2) increases circuit current, 3) measures 0 voltage
What are the three characteristics of a changed value? - CORRECT ANSWERS
1) resistance increases or decreases, 2) increases or decreases circuit
current, 3) measures voltage other than calculated
What is a representation of AC voltage or current? - CORRECT ANSWERS
The sine wave
____ is determined by the number of cycles that occur in one second. -
CORRECT ANSWERS Frequency
What is the basic unit of measurement for frequency? - CORRECT ANSWERS
the Hertz (Hz)
, ____ is the length of time required to complete one cycle of an AC sine wave. -
CORRECT ANSWERS Period
The symbol for period is ____? - CORRECT ANSWERS T
Time is expressed as a ____. - CORRECT ANSWERS decimal part of a
second
The formula for period is ____. - CORRECT ANSWERS T=1/f
____ is the distance from beginning to end of one complete cycle of an AC sine
wave. - CORRECT ANSWERS Wavelength
The symbol for wavelength is ____. - CORRECT ANSWERS λ
(lambda)
Wavelength is expressed in ____ or ____. - CORRECT ANSWERS
meters or centimeters
The formula for wavelength is ____. - CORRECT ANSWERS λ = 300 x
10^6 / f - where f is Hertz
A changed value component changes ____ and ____. - CORRECT ANSWERS
ZT, IT
A ____ eliminates the component from the circuit. - CORRECT ANSWERS
short
