Page 1 of 98
NCCER Electrical Practice EXAM 1-4 LATEST
UPDATE 2026-2027 QUESTIONS AND
DETAILED SOLUTIONS
When a barrier is used as a controlled access zone, it must be _____ from the edge
6 feet
Batteries can be an explosion hazard because
Hydrogen mixed with air is explosive in the proper concentration
Before entering a confined space you must
be trained in confined space entry procedures
Portable electric hand tools account for a large number of electrical shock injuries. One way
to prevent these types of accidents is by
Proper grounding of tools
When using a straight ladder, the side rails should extend at least _____ inches above the top
support point
36"
An _______ is intended for the electrical protection of personnel
, Page 2 of 98
GFCI
What voltage is considered high voltage
600v or more
_______ Rubber gloves are rated for applications up to 1,000v
Class 0
The first step to be completed before working on a circuit is to,
Check that the circuit is tagged and locked out
A program that requires trainees to demonstrate the ability to perform job related tasks is
known as an
Competency Based
An electrical apprentice training program typically requires ______ total hours of OJT
8,000
The standard that covers arc fault protection is
NFPA 70E
The primary mission of OSHA is to
, Page 3 of 98
Ensure that the employer maintains a safe workplace.
If you see an unsafe condition on a job site you should
report it to a supervisor.
Which of the following is a correct statement about an employee's responsibilities
When you have been given a responsibility, you should do it without waiting to be told.
Special enclosures are used in hazardous locations to safely contain.
Arcing
Industrial maintenance electricians should be able to disassemble and reassemble
Magnetic Motor Starters
An apprenticeship program approved by the DOL office of apprenticeship requires ____ of
classroom training per year.
144 hours
The standard that sets the minimum requirements for the safe installation of electrical
systems is
The NEC
High voltage rubber gloves must be electrically tested
, Page 4 of 98
Every 6 months
The major cause of death from electrical shock is
Fibrillation of the heart
The main factor that determines the outcome of an electrical shock is the
Amount of current
According to OSHA portable tools and appliances do not need to be grounded...
If they have an approved system of double insulation
All electrical equipment and lines should be considered ____ until determined otherwise
Energized
The OSHA standards for the contruction industry are covered in CFR.....
CFR 1910 & 1926
After a hazard review is completed, __________ determine(s) the classification of a confined
space as a nonpermit or permit- required confined space
the supervisor and project/safety managers
Specific data for a hazardous material is found in?
the MSDS
NCCER Electrical Practice EXAM 1-4 LATEST
UPDATE 2026-2027 QUESTIONS AND
DETAILED SOLUTIONS
When a barrier is used as a controlled access zone, it must be _____ from the edge
6 feet
Batteries can be an explosion hazard because
Hydrogen mixed with air is explosive in the proper concentration
Before entering a confined space you must
be trained in confined space entry procedures
Portable electric hand tools account for a large number of electrical shock injuries. One way
to prevent these types of accidents is by
Proper grounding of tools
When using a straight ladder, the side rails should extend at least _____ inches above the top
support point
36"
An _______ is intended for the electrical protection of personnel
, Page 2 of 98
GFCI
What voltage is considered high voltage
600v or more
_______ Rubber gloves are rated for applications up to 1,000v
Class 0
The first step to be completed before working on a circuit is to,
Check that the circuit is tagged and locked out
A program that requires trainees to demonstrate the ability to perform job related tasks is
known as an
Competency Based
An electrical apprentice training program typically requires ______ total hours of OJT
8,000
The standard that covers arc fault protection is
NFPA 70E
The primary mission of OSHA is to
, Page 3 of 98
Ensure that the employer maintains a safe workplace.
If you see an unsafe condition on a job site you should
report it to a supervisor.
Which of the following is a correct statement about an employee's responsibilities
When you have been given a responsibility, you should do it without waiting to be told.
Special enclosures are used in hazardous locations to safely contain.
Arcing
Industrial maintenance electricians should be able to disassemble and reassemble
Magnetic Motor Starters
An apprenticeship program approved by the DOL office of apprenticeship requires ____ of
classroom training per year.
144 hours
The standard that sets the minimum requirements for the safe installation of electrical
systems is
The NEC
High voltage rubber gloves must be electrically tested
, Page 4 of 98
Every 6 months
The major cause of death from electrical shock is
Fibrillation of the heart
The main factor that determines the outcome of an electrical shock is the
Amount of current
According to OSHA portable tools and appliances do not need to be grounded...
If they have an approved system of double insulation
All electrical equipment and lines should be considered ____ until determined otherwise
Energized
The OSHA standards for the contruction industry are covered in CFR.....
CFR 1910 & 1926
After a hazard review is completed, __________ determine(s) the classification of a confined
space as a nonpermit or permit- required confined space
the supervisor and project/safety managers
Specific data for a hazardous material is found in?
the MSDS
