ELECTRONICS ETA CERTIFICATION COMPREHENSIVE
EXAM 2026/2027 QUESTIONS AND SOLUTIONS RATED
A+
✔✔The output of a lead-acid cell is approximately: - ✔✔2.1 V
✔✔Given a battery rated at 200 ampere-hours, how many hours will the battery be able
to provide 10 amperes? - ✔✔20
✔✔ The "triboelectric effect" causes what kind of electricity? - ✔✔Static
✔✔The law of static electrical charges states: - ✔✔like charges repel
✔✔Minute particles that make up all possible elements and still retain the unique
chemical characteristics of the element are called _____________. - ✔✔Atoms
✔✔A molecule is the smallest particle of matter that can exist by itself. (1) - ✔✔True (1)
✔✔A basic atom must contain what two types of subatomic particles? - ✔✔Electron and
proton
✔✔An electron has _______________. - ✔✔a Negative charge
✔✔What two types of energy are used throughout electronics? - ✔✔Kinetic and
potential
✔✔Electrical direct current flowing in a wire produces a magnetic field: - ✔✔at right
angles to current flow
✔✔A material is magnetized when the: - ✔✔domains are in alignment
✔✔A material that can be magnetized easily falls into this category: - ✔✔Ferromagnetic
✔✔Invisible lines of force that surround a magnet are called ___________________. -
✔✔magnetic flux lines
✔✔The pole of a magnet from which flux leaves is called the __________________. -
✔✔north
✔✔_________________ force produces magnetic flux. - ✔✔Magnetomotive
✔✔What class of fire extinguisher is used on an oil fire? - ✔✔B
, ✔✔It is dangerous to use wooden handled tools around high voltage due to their ability
to absorb moisture. (2) - ✔✔True (2)
✔✔In order to eliminate possible fire hazards, rags should be stored in
________________ - ✔✔metal containers
✔✔When an individual receives an electrical shock, an immediate symptom can be
_______________. - ✔✔Cardiac arrest
✔✔What happens as protective eye goggles age? - ✔✔Their resistance to scratching
decreases
✔✔Safety precautions to be followed when working on high-voltage equipment include
which of the following? - ✔✔All jewelry should be removed
✔✔The main purpose of a safety observer is to: - ✔✔turn off equipment in use and
apply emergency first aid or cardiopulmonary resuscitation if needed
✔✔You should use caution when talking to someone who is operating electrical
equipment because the distraction: - ✔✔• could damage the equipment
• both could be injured
• could ruin an electronic device
✔✔Which device would most likely include a light level meter? - ✔✔Camera
✔✔The most common functions of a generic multimeter are
_________________________. - ✔✔voltmeter, ammeter and ohmmeter
✔✔Digital multimeters eliminate which of the following disadvantages of analog meters?
- ✔✔• Low impedance
• Poor accuracy
• Parallax errors
✔✔The Wheatstone bridge can be used for precision measurements of: - ✔✔resistance
✔✔The ammeter setting on a multimeter indicates what type of reading? - ✔✔current
✔✔A resistor with color bands of blue, gray and black has a value of
_______________. - ✔✔68 ohms 20%
✔✔A/an _____________ allows current to flow easily. - ✔✔conductor
✔✔A/an _________________ stops the flow of current. - ✔✔insulator
EXAM 2026/2027 QUESTIONS AND SOLUTIONS RATED
A+
✔✔The output of a lead-acid cell is approximately: - ✔✔2.1 V
✔✔Given a battery rated at 200 ampere-hours, how many hours will the battery be able
to provide 10 amperes? - ✔✔20
✔✔ The "triboelectric effect" causes what kind of electricity? - ✔✔Static
✔✔The law of static electrical charges states: - ✔✔like charges repel
✔✔Minute particles that make up all possible elements and still retain the unique
chemical characteristics of the element are called _____________. - ✔✔Atoms
✔✔A molecule is the smallest particle of matter that can exist by itself. (1) - ✔✔True (1)
✔✔A basic atom must contain what two types of subatomic particles? - ✔✔Electron and
proton
✔✔An electron has _______________. - ✔✔a Negative charge
✔✔What two types of energy are used throughout electronics? - ✔✔Kinetic and
potential
✔✔Electrical direct current flowing in a wire produces a magnetic field: - ✔✔at right
angles to current flow
✔✔A material is magnetized when the: - ✔✔domains are in alignment
✔✔A material that can be magnetized easily falls into this category: - ✔✔Ferromagnetic
✔✔Invisible lines of force that surround a magnet are called ___________________. -
✔✔magnetic flux lines
✔✔The pole of a magnet from which flux leaves is called the __________________. -
✔✔north
✔✔_________________ force produces magnetic flux. - ✔✔Magnetomotive
✔✔What class of fire extinguisher is used on an oil fire? - ✔✔B
, ✔✔It is dangerous to use wooden handled tools around high voltage due to their ability
to absorb moisture. (2) - ✔✔True (2)
✔✔In order to eliminate possible fire hazards, rags should be stored in
________________ - ✔✔metal containers
✔✔When an individual receives an electrical shock, an immediate symptom can be
_______________. - ✔✔Cardiac arrest
✔✔What happens as protective eye goggles age? - ✔✔Their resistance to scratching
decreases
✔✔Safety precautions to be followed when working on high-voltage equipment include
which of the following? - ✔✔All jewelry should be removed
✔✔The main purpose of a safety observer is to: - ✔✔turn off equipment in use and
apply emergency first aid or cardiopulmonary resuscitation if needed
✔✔You should use caution when talking to someone who is operating electrical
equipment because the distraction: - ✔✔• could damage the equipment
• both could be injured
• could ruin an electronic device
✔✔Which device would most likely include a light level meter? - ✔✔Camera
✔✔The most common functions of a generic multimeter are
_________________________. - ✔✔voltmeter, ammeter and ohmmeter
✔✔Digital multimeters eliminate which of the following disadvantages of analog meters?
- ✔✔• Low impedance
• Poor accuracy
• Parallax errors
✔✔The Wheatstone bridge can be used for precision measurements of: - ✔✔resistance
✔✔The ammeter setting on a multimeter indicates what type of reading? - ✔✔current
✔✔A resistor with color bands of blue, gray and black has a value of
_______________. - ✔✔68 ohms 20%
✔✔A/an _____________ allows current to flow easily. - ✔✔conductor
✔✔A/an _________________ stops the flow of current. - ✔✔insulator
