,QUESTION: What part of an atom is associated with the flow of electricity?
A) Protons
B) Neutrons
C) Nucleus
D) Electrons
ANSWER: D) Electrons
QUESTION: What property of electrons in a conductor determines whether electrical flow is good or
poor?
A) The number of protons in the atom
B) The speed of electron rotation
C) The presence of free electrons in the outer orbit
D) The atomic weight of the material
ANSWER: C) The presence of free electrons in the outer orbit
QUESTION: Static electricity is best defined as:
A) The continuous movement of electrons through a conductor
B) A difference of electrical charge between two non-conductive surfaces
C) Electrical energy produced by a generator
D) A flow of electrons measured in amperes
ANSWER: B) A difference of electrical charge between two non-conductive surfaces
QUESTION: Which term is used to express the flow of electricity?
A) Voltage
B) Resistance
,C) Current
D) Power
ANSWER: C) Current
QUESTION: A coulomb is defined as:
A) A unit of electrical pressure
B) A measure of electrical resistance
C) A unit of electrical power
D) A unit of electrical charge equal to approximately 6.28 × 10¹⁸ electrons
ANSWER: D) A unit of electrical charge equal to approximately 6.28 × 10¹⁸ electrons
QUESTION: What is the basic unit of electrical pressure?
A) Ampere
B) Watt
C) Volt
D) Ohm
ANSWER: C) Volt
QUESTION: Which formula is used to calculate current when voltage and resistance are known?
A) V = I × R
B) R = V ÷ I
C) I = V ÷ R
D) P = V × I
ANSWER: C) I = V ÷ R
QUESTION: What device, other than a battery, can be used to store electrical energy?
A) Resistor
B) Inductor
C) Capacitor
, D) Transformer
ANSWER: C) Capacitor
QUESTION: The left-hand rule for electrical generation is used to describe:
A) Voltage polarity in a circuit
B) Direction of magnetic field only
C) The relationship between conductor motion, magnetic field, and current flow
D) The direction of electron drift in a resistor
ANSWER: C) The relationship between conductor motion, magnetic field, and current flow
QUESTION: Which material property allows magnetic lines of flux to flow easily?
A) Conductivity
B) Resistance
C) Inductance
D) Permeability
ANSWER: D) Permeability
QUESTION: What common electrical point provides a return path to power in a circuit?
A) Neutral
B) Bus bar
C) Earth or chassis ground
D) Terminal strip
ANSWER: C) Earth or chassis ground
QUESTION: What is the result of passing excessive current through a small-gauge wire?
A) Voltage increases
B) Resistance decreases
C) Heat buildup that can damage the wire
A) Protons
B) Neutrons
C) Nucleus
D) Electrons
ANSWER: D) Electrons
QUESTION: What property of electrons in a conductor determines whether electrical flow is good or
poor?
A) The number of protons in the atom
B) The speed of electron rotation
C) The presence of free electrons in the outer orbit
D) The atomic weight of the material
ANSWER: C) The presence of free electrons in the outer orbit
QUESTION: Static electricity is best defined as:
A) The continuous movement of electrons through a conductor
B) A difference of electrical charge between two non-conductive surfaces
C) Electrical energy produced by a generator
D) A flow of electrons measured in amperes
ANSWER: B) A difference of electrical charge between two non-conductive surfaces
QUESTION: Which term is used to express the flow of electricity?
A) Voltage
B) Resistance
,C) Current
D) Power
ANSWER: C) Current
QUESTION: A coulomb is defined as:
A) A unit of electrical pressure
B) A measure of electrical resistance
C) A unit of electrical power
D) A unit of electrical charge equal to approximately 6.28 × 10¹⁸ electrons
ANSWER: D) A unit of electrical charge equal to approximately 6.28 × 10¹⁸ electrons
QUESTION: What is the basic unit of electrical pressure?
A) Ampere
B) Watt
C) Volt
D) Ohm
ANSWER: C) Volt
QUESTION: Which formula is used to calculate current when voltage and resistance are known?
A) V = I × R
B) R = V ÷ I
C) I = V ÷ R
D) P = V × I
ANSWER: C) I = V ÷ R
QUESTION: What device, other than a battery, can be used to store electrical energy?
A) Resistor
B) Inductor
C) Capacitor
, D) Transformer
ANSWER: C) Capacitor
QUESTION: The left-hand rule for electrical generation is used to describe:
A) Voltage polarity in a circuit
B) Direction of magnetic field only
C) The relationship between conductor motion, magnetic field, and current flow
D) The direction of electron drift in a resistor
ANSWER: C) The relationship between conductor motion, magnetic field, and current flow
QUESTION: Which material property allows magnetic lines of flux to flow easily?
A) Conductivity
B) Resistance
C) Inductance
D) Permeability
ANSWER: D) Permeability
QUESTION: What common electrical point provides a return path to power in a circuit?
A) Neutral
B) Bus bar
C) Earth or chassis ground
D) Terminal strip
ANSWER: C) Earth or chassis ground
QUESTION: What is the result of passing excessive current through a small-gauge wire?
A) Voltage increases
B) Resistance decreases
C) Heat buildup that can damage the wire
