ELECTRONICS ETA CERTIFICATION
PRACTICE EXAM 2025 QUESTIONS AND
ANSWERS
The "triboelectric effect" causes what kind of electricity? - ANS Static
The law of static electrical charges states: - ANS like charges repel
Minute particles that make up all possible elements and still retain the unique chemical
characteristics of the element are called _____________. - ANS Atoms
A molecule is the smallest particle of matter that can exist by itself. (1) - ANS True (1)
A basic atom must contain what two types of subatomic particles? - ANS Electron and proton
An electron has _______________. - ANS a Negative charge
What two types of energy are used throughout electronics? - ANS Kinetic and potential
Electrical direct current flowing in a wire produces a magnetic field: - ANS at right angles to
current flow
A material is magnetized when the: - ANS domains are in alignment
Copyright ©2025 BRIGHTSTARS ALL RIGHTS RESERVED 1
, A material that can be magnetized easily falls into this category: - ANS Ferromagnetic
Invisible lines of force that surround a magnet are called ___________________. -
ANS magnetic flux lines
The pole of a magnet from which flux leaves is called the __________________. - ANS north
_________________ force produces magnetic flux. - ANS Magnetomotive
What class of fire extinguisher is used on an oil fire? - ANS B
It is dangerous to use wooden handled tools around high voltage due to their ability to absorb
moisture. (2) - ANS True (2)
In order to eliminate possible fire hazards, rags should be stored in ________________ -
ANS metal containers
When an individual receives an electrical shock, an immediate symptom can be
_______________. - ANS Cardiac arrest
What happens as protective eye goggles age? - ANS Their resistance to scratching decreases
Safety precautions to be followed when working on high-voltage equipment include which of
the following? - ANS All jewelry should be removed
The main purpose of a safety observer is to: - ANS turn off equipment in use and apply
emergency first aid or cardiopulmonary resuscitation if needed
Copyright ©2025 BRIGHTSTARS ALL RIGHTS RESERVED 2
PRACTICE EXAM 2025 QUESTIONS AND
ANSWERS
The "triboelectric effect" causes what kind of electricity? - ANS Static
The law of static electrical charges states: - ANS like charges repel
Minute particles that make up all possible elements and still retain the unique chemical
characteristics of the element are called _____________. - ANS Atoms
A molecule is the smallest particle of matter that can exist by itself. (1) - ANS True (1)
A basic atom must contain what two types of subatomic particles? - ANS Electron and proton
An electron has _______________. - ANS a Negative charge
What two types of energy are used throughout electronics? - ANS Kinetic and potential
Electrical direct current flowing in a wire produces a magnetic field: - ANS at right angles to
current flow
A material is magnetized when the: - ANS domains are in alignment
Copyright ©2025 BRIGHTSTARS ALL RIGHTS RESERVED 1
, A material that can be magnetized easily falls into this category: - ANS Ferromagnetic
Invisible lines of force that surround a magnet are called ___________________. -
ANS magnetic flux lines
The pole of a magnet from which flux leaves is called the __________________. - ANS north
_________________ force produces magnetic flux. - ANS Magnetomotive
What class of fire extinguisher is used on an oil fire? - ANS B
It is dangerous to use wooden handled tools around high voltage due to their ability to absorb
moisture. (2) - ANS True (2)
In order to eliminate possible fire hazards, rags should be stored in ________________ -
ANS metal containers
When an individual receives an electrical shock, an immediate symptom can be
_______________. - ANS Cardiac arrest
What happens as protective eye goggles age? - ANS Their resistance to scratching decreases
Safety precautions to be followed when working on high-voltage equipment include which of
the following? - ANS All jewelry should be removed
The main purpose of a safety observer is to: - ANS turn off equipment in use and apply
emergency first aid or cardiopulmonary resuscitation if needed
Copyright ©2025 BRIGHTSTARS ALL RIGHTS RESERVED 2
