AUT 125 FINAL EXAM QUESTIONS AND
ANSWERS 2026 VERIFIED.
An electrical conductor is an element with ________ electrons in its outer orbit. - ANS 3 or
less
Like charges - ANS Repel
Carbon and silicon (which have 4 electrons in their outer most ring/orbit) are examples of
________. - ANS Semiconductors
As temperature increases, ________. - ANS The resistance of a conductor increases
The ________ is a unit of electrical pressure. - ANS volt
The fact that voltage can be created by exerting force on a crystal (piezoelectricity) is used for
which type of sensor? - ANS Knock sensor (KS)
A positively charged atom is called a(n) ________ - ANS None of them
The outer electron shell is known as a(n) ________. - ANS Valence ring
@2026/2027 ALLRIGHTS RESERVED.
, Which device produces electrical pressure/voltage resulting from the heating of two dissimilar
conductors? - ANS Thermocouple
Technician A says that resistance increases as the diameter of a conductor increases. Technician
B says that resistance decreases as the diameter of a conductor increases. Which technician is
correct? - ANS Technician B only
The automotive battery is based on the principle of ________. - ANS Electrochemical power
This diagram indicates current flow using which theory of current flow? - ANS Conventional
Theory
What type of material is indicated by this atomic structure? - ANS Insulator
Technician A says that magnetic lines of force can be seen by placing iron filings on a piece of
paper and then holding them over a magnet. Technician B says that the effects of magnetic lines
of force can be seen using a compass. Which technician is correct? - ANS Both technicians A
and B
Unlike magnetic poles ________ and like magnetic poles ________. - ANS Attract/repel
Electromotive force is another term for ________. - ANS voltage
Which of these is the term used for electrical power? - ANS Watts
Electrical power is calculated by ________. - ANS Multiplying volts times amperage
@2026/2027 ALLRIGHTS RESERVED.
ANSWERS 2026 VERIFIED.
An electrical conductor is an element with ________ electrons in its outer orbit. - ANS 3 or
less
Like charges - ANS Repel
Carbon and silicon (which have 4 electrons in their outer most ring/orbit) are examples of
________. - ANS Semiconductors
As temperature increases, ________. - ANS The resistance of a conductor increases
The ________ is a unit of electrical pressure. - ANS volt
The fact that voltage can be created by exerting force on a crystal (piezoelectricity) is used for
which type of sensor? - ANS Knock sensor (KS)
A positively charged atom is called a(n) ________ - ANS None of them
The outer electron shell is known as a(n) ________. - ANS Valence ring
@2026/2027 ALLRIGHTS RESERVED.
, Which device produces electrical pressure/voltage resulting from the heating of two dissimilar
conductors? - ANS Thermocouple
Technician A says that resistance increases as the diameter of a conductor increases. Technician
B says that resistance decreases as the diameter of a conductor increases. Which technician is
correct? - ANS Technician B only
The automotive battery is based on the principle of ________. - ANS Electrochemical power
This diagram indicates current flow using which theory of current flow? - ANS Conventional
Theory
What type of material is indicated by this atomic structure? - ANS Insulator
Technician A says that magnetic lines of force can be seen by placing iron filings on a piece of
paper and then holding them over a magnet. Technician B says that the effects of magnetic lines
of force can be seen using a compass. Which technician is correct? - ANS Both technicians A
and B
Unlike magnetic poles ________ and like magnetic poles ________. - ANS Attract/repel
Electromotive force is another term for ________. - ANS voltage
Which of these is the term used for electrical power? - ANS Watts
Electrical power is calculated by ________. - ANS Multiplying volts times amperage
@2026/2027 ALLRIGHTS RESERVED.
