3RD YEAR ELECTRIC 2026/2027 || VERIFIED QUESTIONS & ANSWERS || HIGH-
YIELD ELECTRICAL ENGINEERING REVIEW || CIRCUIT ANALYSIS, POWER
SYSTEMS, MACHINES & CONTROL SYSTEMS || COMPLETE STUDY GUIDE ||
EXAM-READY TEST BANK || GRADED A+
When are overcurrent protective devices (OCPDs), such as fuses, circuit
breakers, and protective relays allowed to be modified? - CORRECT
ANSWER - OCPDs cannot be modified at any time
NFPA 70E requires that the contract employer inform its employees of ___. -
CORRECT ANSWER - hazards the host employer has communicated to the
contract employer
It is not required to verify that a circuit or equipment has been deenergized as
long as all of the other steps of the lockout/tagout procedure have been
performed. - CORRECT ANSWER - False
The ___ is the distance from exposed energized conductors or circuit parts
where bare skin would receive the equivalent of 1.2 cal/cm2. - CORRECT
ANSWER - Arc Flash Boundary
An arc flash hazard analysis is used to determine ___. - CORRECT ANSWER
- a. potential electrical arc flash hazards
b. the required PPE
c. the Arc Flash Boundary
Tags used for lockout/tagout may include ___. - CORRECT ANSWER - a. the
length of time the equipment is expected to be out of service
b. the phone number of the worker who placed the tag
c. the name of the worker who placed the tag
,Employers who exercise "due diligence" is an employer who is proactive with
regard to safety. - CORRECT ANSWER - True
A qualified person must be trained in the skills and techniques to determine
nominal voltage. - CORRECT ANSWER - True
Which of the following devices is not recommended for performing absence of
voltage tests? - CORRECT ANSWER - Noncontact voltage tester
The ___ step is probably the most important step in a lockout/tagout
procedure. - CORRECT ANSWER - test for the absence of voltage
The NFPA 70E recommends ___ training for electrical workers. - CORRECT
ANSWER - a. instructor led classroom
b. on the job
An electrical safety program should include a section on ___. - CORRECT
ANSWER - a. procedures
b. principles
c. responsibility
One of the most important goals of the Multi-Employer Worksite Policy from
OSHA is to ensure that ___. - CORRECT ANSWER - c. good communication
occurs between the contractors working on the site
The Approach boundaries are viewed as a barrier extending ___ degrees
around an exposed energized conductor or circuit part. - CORRECT
ANSWER - 360
,The Multi-Employer Worksite Policy from OSHA categorizes employers into
___ roles. - CORRECT ANSWER - 4
NFPA 70E requires that CPR training be certified by the employer every ___
year(s). - CORRECT ANSWER - one
A written, documented electrical safety program is ___ than a verbal one. -
CORRECT ANSWER - more effective
A(n) ___ conductor carries circuit current in normal operation. - CORRECT
ANSWER - neutral
The human body is a good conductor because it is mostly salt water. -
CORRECT ANSWER - True
Electrical faults cause all the following types of stresses, except ___. -
CORRECT ANSWER - seismic
The point of division of line and load is located at the ___. - CORRECT
ANSWER - overcurrent devices in the service disconnecting means
Total opposition to current flow in an alternating current (ac) circuit is ___. -
CORRECT ANSWER - impedance
Potential difference refers to which of the following? - CORRECT ANSWER
- voltage
, The symbol used for impedance in an electrical formula is ___. - CORRECT
ANSWER - Z
Potential difference is a value measured in ohms. - CORRECT ANSWER -
False
O'Riley's first rule for electrical installations is to make them ___. -
CORRECT ANSWER - safe
If the resistance of the body is 100 ohms, how much current would pass
through the body when connected to a 120-volt circuit? - CORRECT
ANSWER - 1.2 amps
Potential difference is a value measured in ___. - CORRECT ANSWER -
volts
A solidly grounded system is one where one of the current-carrying
conductors is intentionally connected to the earth. - CORRECT ANSWER -
True
In terms of grounding, the earth is considered to represent ___. - CORRECT
ANSWER - zero potential
When a piece of equipment is connected to the earth, it meets the definition
for ___. - CORRECT ANSWER - grounded
The most common configuration for a grounded, three-phase, ac distribution
system is four-wire, center grounded (also called "wye connected"). The code
YIELD ELECTRICAL ENGINEERING REVIEW || CIRCUIT ANALYSIS, POWER
SYSTEMS, MACHINES & CONTROL SYSTEMS || COMPLETE STUDY GUIDE ||
EXAM-READY TEST BANK || GRADED A+
When are overcurrent protective devices (OCPDs), such as fuses, circuit
breakers, and protective relays allowed to be modified? - CORRECT
ANSWER - OCPDs cannot be modified at any time
NFPA 70E requires that the contract employer inform its employees of ___. -
CORRECT ANSWER - hazards the host employer has communicated to the
contract employer
It is not required to verify that a circuit or equipment has been deenergized as
long as all of the other steps of the lockout/tagout procedure have been
performed. - CORRECT ANSWER - False
The ___ is the distance from exposed energized conductors or circuit parts
where bare skin would receive the equivalent of 1.2 cal/cm2. - CORRECT
ANSWER - Arc Flash Boundary
An arc flash hazard analysis is used to determine ___. - CORRECT ANSWER
- a. potential electrical arc flash hazards
b. the required PPE
c. the Arc Flash Boundary
Tags used for lockout/tagout may include ___. - CORRECT ANSWER - a. the
length of time the equipment is expected to be out of service
b. the phone number of the worker who placed the tag
c. the name of the worker who placed the tag
,Employers who exercise "due diligence" is an employer who is proactive with
regard to safety. - CORRECT ANSWER - True
A qualified person must be trained in the skills and techniques to determine
nominal voltage. - CORRECT ANSWER - True
Which of the following devices is not recommended for performing absence of
voltage tests? - CORRECT ANSWER - Noncontact voltage tester
The ___ step is probably the most important step in a lockout/tagout
procedure. - CORRECT ANSWER - test for the absence of voltage
The NFPA 70E recommends ___ training for electrical workers. - CORRECT
ANSWER - a. instructor led classroom
b. on the job
An electrical safety program should include a section on ___. - CORRECT
ANSWER - a. procedures
b. principles
c. responsibility
One of the most important goals of the Multi-Employer Worksite Policy from
OSHA is to ensure that ___. - CORRECT ANSWER - c. good communication
occurs between the contractors working on the site
The Approach boundaries are viewed as a barrier extending ___ degrees
around an exposed energized conductor or circuit part. - CORRECT
ANSWER - 360
,The Multi-Employer Worksite Policy from OSHA categorizes employers into
___ roles. - CORRECT ANSWER - 4
NFPA 70E requires that CPR training be certified by the employer every ___
year(s). - CORRECT ANSWER - one
A written, documented electrical safety program is ___ than a verbal one. -
CORRECT ANSWER - more effective
A(n) ___ conductor carries circuit current in normal operation. - CORRECT
ANSWER - neutral
The human body is a good conductor because it is mostly salt water. -
CORRECT ANSWER - True
Electrical faults cause all the following types of stresses, except ___. -
CORRECT ANSWER - seismic
The point of division of line and load is located at the ___. - CORRECT
ANSWER - overcurrent devices in the service disconnecting means
Total opposition to current flow in an alternating current (ac) circuit is ___. -
CORRECT ANSWER - impedance
Potential difference refers to which of the following? - CORRECT ANSWER
- voltage
, The symbol used for impedance in an electrical formula is ___. - CORRECT
ANSWER - Z
Potential difference is a value measured in ohms. - CORRECT ANSWER -
False
O'Riley's first rule for electrical installations is to make them ___. -
CORRECT ANSWER - safe
If the resistance of the body is 100 ohms, how much current would pass
through the body when connected to a 120-volt circuit? - CORRECT
ANSWER - 1.2 amps
Potential difference is a value measured in ___. - CORRECT ANSWER -
volts
A solidly grounded system is one where one of the current-carrying
conductors is intentionally connected to the earth. - CORRECT ANSWER -
True
In terms of grounding, the earth is considered to represent ___. - CORRECT
ANSWER - zero potential
When a piece of equipment is connected to the earth, it meets the definition
for ___. - CORRECT ANSWER - grounded
The most common configuration for a grounded, three-phase, ac distribution
system is four-wire, center grounded (also called "wye connected"). The code
