Electronics ETA Certification Practice
Exam Questions With Complete Solutions
The "triboelectric effect" causes what kind of electricity? -
Correct Answers ✅Static
The law of static electrical charges states: - Correct
Answers ✅like charges repel
Minute particles that make up all possible elements and still
retain the unique chemical characteristics of the element are
called _____________. - Correct Answers ✅Atoms
A molecule is the smallest particle of matter that can exist by
itself. (1) - Correct Answers ✅True (1)
A basic atom must contain what two types of subatomic
particles? - Correct Answers ✅Electron and proton
An electron has _______________. - Correct Answers ✅a
Negative charge
What two types of energy are used throughout electronics? -
Correct Answers ✅Kinetic and potential
Electrical direct current flowing in a wire produces a magnetic
field: - Correct Answers ✅at right angles to current flow
, Electronics ETA Certification Practice
Exam Questions With Complete Solutions
A material is magnetized when the: - Correct Answers
✅domains are in alignment
A material that can be magnetized easily falls into this
category: - Correct Answers ✅Ferromagnetic
Invisible lines of force that surround a magnet are called
___________________. - Correct Answers ✅magnetic flux lines
The pole of a magnet from which flux leaves is called the
__________________. - Correct Answers ✅north
_________________ force produces magnetic flux. - Correct
Answers ✅Magnetomotive
What class of fire extinguisher is used on an oil fire? -
Correct Answers ✅B
It is dangerous to use wooden handled tools around high
voltage due to their ability to absorb moisture. (2) - Correct
Answers ✅True (2)
In order to eliminate possible fire hazards, rags should be
stored in ________________ - Correct Answers ✅metal
containers
Exam Questions With Complete Solutions
The "triboelectric effect" causes what kind of electricity? -
Correct Answers ✅Static
The law of static electrical charges states: - Correct
Answers ✅like charges repel
Minute particles that make up all possible elements and still
retain the unique chemical characteristics of the element are
called _____________. - Correct Answers ✅Atoms
A molecule is the smallest particle of matter that can exist by
itself. (1) - Correct Answers ✅True (1)
A basic atom must contain what two types of subatomic
particles? - Correct Answers ✅Electron and proton
An electron has _______________. - Correct Answers ✅a
Negative charge
What two types of energy are used throughout electronics? -
Correct Answers ✅Kinetic and potential
Electrical direct current flowing in a wire produces a magnetic
field: - Correct Answers ✅at right angles to current flow
, Electronics ETA Certification Practice
Exam Questions With Complete Solutions
A material is magnetized when the: - Correct Answers
✅domains are in alignment
A material that can be magnetized easily falls into this
category: - Correct Answers ✅Ferromagnetic
Invisible lines of force that surround a magnet are called
___________________. - Correct Answers ✅magnetic flux lines
The pole of a magnet from which flux leaves is called the
__________________. - Correct Answers ✅north
_________________ force produces magnetic flux. - Correct
Answers ✅Magnetomotive
What class of fire extinguisher is used on an oil fire? -
Correct Answers ✅B
It is dangerous to use wooden handled tools around high
voltage due to their ability to absorb moisture. (2) - Correct
Answers ✅True (2)
In order to eliminate possible fire hazards, rags should be
stored in ________________ - Correct Answers ✅metal
containers
