MEP Systems I (COSC 325) Electrical Exam – Houston Study Questions and Answers 2024
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Course
MEP Systems I
Institution
MEP Systems I
What is the movement of electrons from atom to atom? (20 - 431) -Correct Answer Electricity
What is a state of matter that has definite volume and shape? (20-431) -Correct Answer Solid
What is a state of matter that has definite volume but not definite shape? (20-431) -Correct Answer Liquid
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MEP Systems I (COSC 325) Electrical Exam - Houston
MEP Systems I (COSC 325) Electrical
Exam – Houston Study Questions and
Answers 2024
What is the movement of electrons from atom to atom? (20 - 431) -Correct Answer
✔Electricity
What is a state of matter that has definite volume and shape? (20-431) -Correct Answer
✔Solid
What is a state of matter that has definite volume but not definite shape? (20-431) -
Correct Answer ✔Liquid
What is a state of matter that is fluid, has a relatively low density, and is highly
compressible? (20-431) -Correct Answer ✔Gas
True or False? All matter has electrical properties. (20-431) -Correct Answer ✔True
What is a material that has very little resistance and permits electrons to move through
it easily?
What is an example of this? (20-431) -Correct Answer ✔Conductor
Copper, Silver, Gold, Aluminum, Iron
What is a material that has a very high resistance and resists the flow of electrons?
What is an example of this? (20-431) -Correct Answer ✔Insulator
Rubber, Glass, Paper, Plastic
What is a negatively charged particle in an atom? (20-431) -Correct Answer ✔Electron
What is a neutral particle, with a mass roughly equal to a proton, that exists in the
nucleus of an atom? (20-431) -Correct Answer ✔Neutron
What is a positively charged particle that exists in the nucleus of an atom? (20-431) -
Correct Answer ✔Proton
What in an atom determines its weight and atomic number? (20-431) -Correct Answer
✔The number of Protons
What is produced when there are fewer electrons than normal? (20-431) -Correct
Answer ✔Positive Charge
MEP Systems I (COSC 325) Electrical Exam - Houston
, MEP Systems I (COSC 325) Electrical Exam - Houston
What is produced when there are more electrons than normal? (20-431) -Correct
Answer ✔Negative Charge
What is the maximum number of shells an atom can have? (20-432) -Correct Answer
✔Seven
What is the outermost shell of an atom that contains the electrons that form new
compounds? (20-432) -Correct Answer ✔Valence Shell
What material is the best conductor? (20-433) -Correct Answer ✔Silver
What is an electronic device that has electrical conductibility between that of a
conductor and that of an insulator.
What are examples of these materials? (20-433) -Correct Answer ✔Semiconductor
Carbon, Germanium, Silicon
What is an electrical charge at rest? (20-433) -Correct Answer ✔Static Electricity
What is the alternating current (AC) created by power plant generators? (20-433) -
Correct Answer ✔Generated Electricity
Power plant generators create ____ ____ _____ ____ electricity. (20-433) -Correct
Answer ✔Three-Phase Alternating Current
What is an electric device that uses electromagnetism to change (step-up or step-down)
AC voltage from one level to another? (20-434) -Correct Answer ✔Transformer
What must you do to electricity before it enters a building from the wire? (20-434) -
Correct Answer ✔Step-down
What do transformers step electricity down to to service apartments, condos,
townhomes, and homes? (20-434) -Correct Answer ✔120 V/ 240 V
What is an electrical device containing fuses or circuit breakers for protecting the
individual circuits of a residence, and serves as means of disconnecting the entire
residence from the distribution system? (20-435) -Correct Answer ✔Service Panel
Where can Service Panels be found? (20-435) -Correct Answer ✔Wall-mounted in
basements, utility rooms, and attached garages. Must be easily accessible to residents.
What is a complete path (when ON) for current to take and INCLUDES electrical
devices, circuit protection, conductors, and loads? (20-436) -Correct Answer ✔Circuit
MEP Systems I (COSC 325) Electrical Exam - Houston
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