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11: Test Your Knowledge
Define electrical engineering.
What level of education is required to become an electrical engineer?
High school students should take the highest level courses possible in _______ and _______ if they wish to become electrical engineers.
Electricity is the flow of _______.
A. protons
B. atoms
C. electrons
D. neutrons
All matter is made up of microscopic building blocks called _______.
Most electricity is produced using electric _______.
A. motors
B. electrolytes
C. cells
D. generators
A battery is an example of which source of electricity?
A. Chemical action.
B. Magnetism.
C. Wind farms.
D. Solar cells.
Electromotive force is another term for _______.
_______ are the unit of measure for electrons.
When _______ is constant, current flows in only one direction.
Which of the following is
not
an example of a good conductor?
A. Copper.
B. Aluminum.
C. Rubber.
D. Gold.
In a circuit where voltage is held constant, if resistance increases, current _______.
The unit for power is the _______.
A. ohm
B. amp
C. watt
D. coulomb
_______ is the relationship between resistance, current, and voltage in electrical circuits.
A _______ circuit has only one path for current flow.
A. parallel
B. series
C. series-parallel
D. wave
Find the voltage for a series circuit where you know the current is 0.5 A and the resistance is 25 Ω.
What is the total current flow in this circuit?
Which of the following is not an example of a good insulator?
A. Plastic.
B. Paper.
C. Steel.
D. Rubber.
A resistor with a color code of green-yellow-red- gold has a value of _______ Ω with a tolerance of _______%.
A(n) _______ allows flow in only one direction and can be used as a rectifier to change ac to dc.
_______ is the most commonly used semiconductor material.
Name the two types of control systems.
Incandescent bulbs use a _______ filament inside a globe where the oxygen has been removed.
A. silicon
B. carbon
C. tungsten
D. fluorescent
_______ use about 75% less energy to create the same amount of light as an incandescent bulb.
What are PCBs and what are they used for?
A(n) _______ can test for resistance and continuity.
A. voltmeter
B. ohmmeter
C. ammeter
D. oscilloscope
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