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MEP SYSTEMS I (COSC 325) ELECTRICAL
EXAM – HOUSTON ACTUAL EXAM QUESTIONS
& CORRECT SOLUTIONS
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
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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
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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
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
One BTU = How many calories? (21-461) -correct-answer-252 Calories or 0.252
Kilocalories
What conducts and dissipates heat away from an object? (21-462) -correct-
answer-Heat Sink
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How do you convert Fahrenheit to Celsius? (21-463) -correct-answer-Subtract 32
from temperature, and divide by 1.8.
What is the portion of the electromagnetic spectrum that produces radiant
energy? (21-463) -correct-answer-Light
Visible light with the longest wavelengths produce which color? (21-463) -correct-
answer-Red
What is a unit used to measure the total amount of light produced by a light
source? (21-464) -correct-answer-Lumen (lm)
What is the amount of light produced by a lamp (lumens) divided by the area that
is illuminated? (21-464) -correct-answer-Footcandle (fc)
What states that the amount of illumination on a surface varies inversely with the
square of the distance from the light source? (21-464) -correct-answer-Inverse
Square Law
MEP SYSTEMS I (COSC 325) ELECTRICAL
EXAM – HOUSTON ACTUAL EXAM QUESTIONS
& CORRECT SOLUTIONS
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
,2|Page
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
,3|Page
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
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
One BTU = How many calories? (21-461) -correct-answer-252 Calories or 0.252
Kilocalories
What conducts and dissipates heat away from an object? (21-462) -correct-
answer-Heat Sink
, 4|Page
How do you convert Fahrenheit to Celsius? (21-463) -correct-answer-Subtract 32
from temperature, and divide by 1.8.
What is the portion of the electromagnetic spectrum that produces radiant
energy? (21-463) -correct-answer-Light
Visible light with the longest wavelengths produce which color? (21-463) -correct-
answer-Red
What is a unit used to measure the total amount of light produced by a light
source? (21-464) -correct-answer-Lumen (lm)
What is the amount of light produced by a lamp (lumens) divided by the area that
is illuminated? (21-464) -correct-answer-Footcandle (fc)
What states that the amount of illumination on a surface varies inversely with the
square of the distance from the light source? (21-464) -correct-answer-Inverse
Square Law
