ELECTRICAL TEST 1 REVIEW | 2025/2026 UPDATE |
QUESTIONS AND ANSWERS | RATED 100% CORRECT!!
Define Electricity Answer - The movement of electrons from atom to atom
Explain the difference between the 3 states of matter Answer - Solid- definite
volume and shape
Liquid- definite volume no definite shape
Gas- fluid, low density and highly compressible
What is a conductor Answer - Material that has very little resistance and
permits electrons to move through it easily
List and explain the three main parts of an atom Answer - Electron- Negatively
charged particle
Neutron- Neutral particle, mass close to protons, exists in nucleus
Proton- Positively charged particle, exists in nucleus
What part on an atom determines the atom's weight and atomic number
Answer - The number of protons in an atom
How many electrons can be held in each shell of an atom Answer - K-2
L-8
,M-18
N-32
O-50
P-72
Q-98
Define valence shell Answer - The outermost shell of an atom and contains the
electrons that form new compounds
What determines whether an element allows electrons to move easily from
atom to atom Answer - The number of electrons in the valence shell
Define semiconductor Answer - An electronic device that has electrical
conductivity between that of a conductor and that of an insulator
How many valence electrons does a semiconductor have Answer - 4
Discuss the difference between static electricity and generated electricity
Answer - Static electricity is an electrical charge at rest.
Generated electricity is the AC current created by power plant generators.
What is a transformer and how is it used Answer - An electric device that uses
electromagnetism to change (step up or step down) AC voltage from one level
to another
Define circuit Answer - A complete path (When ON) for current to take and
includes electrical control devices, circuit protection, conductors and loads
, Why is it important for a tool system to be organized Answer - Provides both a
central location for retrieval and a means of protection during storage
How should an edged or sharply pointed tool be carried Answer - Carry the
tool with the cutting edge or the point down and outward from the body
Why must cutting tools be sharp and clean Answer - Dull edges cause us to
exert extra force to cut, which can result in losing control of the tool
Explain how to determine if a tool is double insulated Answer - They have two
prongs and have a notation on the specification plate
List the safety rules to follow when handling power tools Answer - Power tools
must be inspected and serviced at regular intervals.
Know all manufacturer safety rules.
Inspect cords.
Do not remove safety guards, make sure they work.
Make all adjustments with power off.
Make sure power is off on device before plugging in.
Wear safety goggles and dust mask.
No obstructions.
Be attentive.
Investigate change in sound immediately.
Power off when work is complete.
Remove defective tool from service.
Do not operate around flammable materials.
Unplug with plug, do not pull the cord.
QUESTIONS AND ANSWERS | RATED 100% CORRECT!!
Define Electricity Answer - The movement of electrons from atom to atom
Explain the difference between the 3 states of matter Answer - Solid- definite
volume and shape
Liquid- definite volume no definite shape
Gas- fluid, low density and highly compressible
What is a conductor Answer - Material that has very little resistance and
permits electrons to move through it easily
List and explain the three main parts of an atom Answer - Electron- Negatively
charged particle
Neutron- Neutral particle, mass close to protons, exists in nucleus
Proton- Positively charged particle, exists in nucleus
What part on an atom determines the atom's weight and atomic number
Answer - The number of protons in an atom
How many electrons can be held in each shell of an atom Answer - K-2
L-8
,M-18
N-32
O-50
P-72
Q-98
Define valence shell Answer - The outermost shell of an atom and contains the
electrons that form new compounds
What determines whether an element allows electrons to move easily from
atom to atom Answer - The number of electrons in the valence shell
Define semiconductor Answer - An electronic device that has electrical
conductivity between that of a conductor and that of an insulator
How many valence electrons does a semiconductor have Answer - 4
Discuss the difference between static electricity and generated electricity
Answer - Static electricity is an electrical charge at rest.
Generated electricity is the AC current created by power plant generators.
What is a transformer and how is it used Answer - An electric device that uses
electromagnetism to change (step up or step down) AC voltage from one level
to another
Define circuit Answer - A complete path (When ON) for current to take and
includes electrical control devices, circuit protection, conductors and loads
, Why is it important for a tool system to be organized Answer - Provides both a
central location for retrieval and a means of protection during storage
How should an edged or sharply pointed tool be carried Answer - Carry the
tool with the cutting edge or the point down and outward from the body
Why must cutting tools be sharp and clean Answer - Dull edges cause us to
exert extra force to cut, which can result in losing control of the tool
Explain how to determine if a tool is double insulated Answer - They have two
prongs and have a notation on the specification plate
List the safety rules to follow when handling power tools Answer - Power tools
must be inspected and serviced at regular intervals.
Know all manufacturer safety rules.
Inspect cords.
Do not remove safety guards, make sure they work.
Make all adjustments with power off.
Make sure power is off on device before plugging in.
Wear safety goggles and dust mask.
No obstructions.
Be attentive.
Investigate change in sound immediately.
Power off when work is complete.
Remove defective tool from service.
Do not operate around flammable materials.
Unplug with plug, do not pull the cord.
