ELECTRONICS ETA CERTIFICATION PRACTICE EXAM
WITH ALL CORRECT & VERIFIED ANSWERS (UPDATED
TO PASS)
The "triboelectric effect" causes what kind of electricity? Correct answer-Static
The law of static electrical charges states: Correct answer-like charges repel
Minute particles that make up all possible elements and still retain the unique chemical
characteristics of the element are called _____________. Correct answer-Atoms
A molecule is the smallest particle of matter that can exist by itself. (1) Correct answer-True (1)
A basic atom must contain what two types of subatomic particles? Correct answer-Electron and
proton
An electron has _______________. Correct answer-a Negative charge
What two types of energy are used throughout electronics? Correct answer-Kinetic and potential
Electrical direct current flowing in a wire produces a magnetic field: Correct answer-at right angles
to current flow
A material is magnetized when the: Correct answer-domains are in alignment
A material that can be magnetized easily falls into this category: Correct answer-Ferromagnetic
Invisible lines of force that surround a magnet are called ___________________. Correct answer-
magnetic flux lines
The pole of a magnet from which flux leaves is called the __________________. Correct answer-
north
_________________ force produces magnetic flux. Correct answer-Magnetomotive
What class of fire extinguisher is used on an oil fire? Correct answer-B
It is dangerous to use wooden handled tools around high voltage due to their ability to absorb
moisture. (2) Correct answer-True (2)
In order to eliminate possible fire hazards, rags should be stored in ________________ Correct
answer-metal containers
When an individual receives an electrical shock, an immediate symptom can be _______________.
Correct answer-Cardiac arrest
What happens as protective eye goggles age? Correct answer-Their resistance to scratching
decreases
, Safety precautions to be followed when working on high-voltage equipment include which of the
following? Correct answer-All jewelry should be removed
The main purpose of a safety observer is to: Correct answer-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: Correct answer-• could damage the equipment
• both could be injured
• could ruin an electronic device
Which device would most likely include a light level meter? Correct answer-Camera
The most common functions of a generic multimeter are _________________________. Correct
answer-voltmeter, ammeter and ohmmeter
Digital multimeters eliminate which of the following disadvantages of analog meters? Correct
answer-• Low impedance
• Poor accuracy
• Parallax errors
The Wheatstone bridge can be used for precision measurements of: Correct answer-resistance
The ammeter setting on a multimeter indicates what type of reading? Correct answer-current
A resistor with color bands of blue, gray and black has a value of _______________. Correct
answer-68 ohms 20%
A/an _____________ allows current to flow easily. Correct answer-conductor
A/an _________________ stops the flow of current. Correct answer-insulator
A component whose value is measured in microfarads is a: Correct answer-capacitor
A component whose value is measured in ohms is a: Correct answer-resistor
Switches are rated in maximum ___________ and ______________. (1) Correct answer-current,
voltage (1)
Fuses are rated in maximum _____________ and ______________. Correct answer-current,
voltage
In an electrical circuit where the voltage and resistance are known, which form of Ohm's law is used
to find the circuit current? Correct answer-I = E/R
A unit of energy is the: Correct answer-Joule
Which of the following is commonly used to measure electrical energy consumption? Correct
answer-Kilowatt-Hours
WITH ALL CORRECT & VERIFIED ANSWERS (UPDATED
TO PASS)
The "triboelectric effect" causes what kind of electricity? Correct answer-Static
The law of static electrical charges states: Correct answer-like charges repel
Minute particles that make up all possible elements and still retain the unique chemical
characteristics of the element are called _____________. Correct answer-Atoms
A molecule is the smallest particle of matter that can exist by itself. (1) Correct answer-True (1)
A basic atom must contain what two types of subatomic particles? Correct answer-Electron and
proton
An electron has _______________. Correct answer-a Negative charge
What two types of energy are used throughout electronics? Correct answer-Kinetic and potential
Electrical direct current flowing in a wire produces a magnetic field: Correct answer-at right angles
to current flow
A material is magnetized when the: Correct answer-domains are in alignment
A material that can be magnetized easily falls into this category: Correct answer-Ferromagnetic
Invisible lines of force that surround a magnet are called ___________________. Correct answer-
magnetic flux lines
The pole of a magnet from which flux leaves is called the __________________. Correct answer-
north
_________________ force produces magnetic flux. Correct answer-Magnetomotive
What class of fire extinguisher is used on an oil fire? Correct answer-B
It is dangerous to use wooden handled tools around high voltage due to their ability to absorb
moisture. (2) Correct answer-True (2)
In order to eliminate possible fire hazards, rags should be stored in ________________ Correct
answer-metal containers
When an individual receives an electrical shock, an immediate symptom can be _______________.
Correct answer-Cardiac arrest
What happens as protective eye goggles age? Correct answer-Their resistance to scratching
decreases
, Safety precautions to be followed when working on high-voltage equipment include which of the
following? Correct answer-All jewelry should be removed
The main purpose of a safety observer is to: Correct answer-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: Correct answer-• could damage the equipment
• both could be injured
• could ruin an electronic device
Which device would most likely include a light level meter? Correct answer-Camera
The most common functions of a generic multimeter are _________________________. Correct
answer-voltmeter, ammeter and ohmmeter
Digital multimeters eliminate which of the following disadvantages of analog meters? Correct
answer-• Low impedance
• Poor accuracy
• Parallax errors
The Wheatstone bridge can be used for precision measurements of: Correct answer-resistance
The ammeter setting on a multimeter indicates what type of reading? Correct answer-current
A resistor with color bands of blue, gray and black has a value of _______________. Correct
answer-68 ohms 20%
A/an _____________ allows current to flow easily. Correct answer-conductor
A/an _________________ stops the flow of current. Correct answer-insulator
A component whose value is measured in microfarads is a: Correct answer-capacitor
A component whose value is measured in ohms is a: Correct answer-resistor
Switches are rated in maximum ___________ and ______________. (1) Correct answer-current,
voltage (1)
Fuses are rated in maximum _____________ and ______________. Correct answer-current,
voltage
In an electrical circuit where the voltage and resistance are known, which form of Ohm's law is used
to find the circuit current? Correct answer-I = E/R
A unit of energy is the: Correct answer-Joule
Which of the following is commonly used to measure electrical energy consumption? Correct
answer-Kilowatt-Hours
