PREBOARD IN ELECTRONICS SYSTEMS AND TECHNOLOGY EXAM ANSWER KEY 2024
1. Which of the following wires has the greatest cross-sectional area?
a. 9 AWG
b. 14 AWG
c. 22 AWG
d. 30 AWG
2. What is the unit of measure for e
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PREBOARD IN ELECTRONICS SYSTEMS AND TECHNOLOGY EXAM ANSWER KEY 2024
1. Which of the following wires has the greatest cross-sectional area?
a. 9 AWG
b. 14 AWG
c. 22 AWG
d. 30 AWG
2. What is the unit of measure for electrical pressure or electromotive force?
a. amps
b. ohms
c. volts
d. watts
3. Which of the following circuit configurations has the same amount of
voltage drop across each of its
components?
a. parallel
b. series-parallel
c. series
d. combination
4. As temperature increases, what happens to the current-carrying ability of
a wire?
a. There is no change.
b. The wire can carry more current.
c. The wire can carry less current.
d. The wire can carry no current.
5. In a series circuit consisting of 3 resistors of 45 Ω each and a 50-V source,
what is the approximate amount of
heat produced?
a. 16.6 W
b. 18.5 W
c. 135 W
d. 150 W
6. In a two-branch parallel circuit containing one 30-Ω resistor in each branch
and powered from a 10-V source,
what is the total current flowing in the circuit?
a. .33 A
b. .67 A
c. 40 A
d. 60 A
7. Which of the following determines total power in a series circuit?
a. source voltage times the current
b. total voltage applied to the circuit
c. current flowing through a switch
d. average of the wattage consumed by each resistor
1. Which of the following wires has the greatest cross-sectional area?
a. 9 AWG
b. 14 AWG
c. 22 AWG
d. 30 AWG
2. What is the unit of measure for electrical pressure or electromotive force?
a. amps
b. ohms
c. volts
d. watts
3. Which of the following circuit configurations has the same amount of
voltage drop across each of its
components?
a. parallel
b. series-parallel
c. series
d. combination
4. As temperature increases, what happens to the current-carrying ability of
a wire?
a. There is no change.
b. The wire can carry more current.
c. The wire can carry less current.
d. The wire can carry no current.
5. In a series circuit consisting of 3 resistors of 45 Ω each and a 50-V source,
what is the approximate amount of
heat produced?
a. 16.6 W
b. 18.5 W
c. 135 W
d. 150 W
6. In a two-branch parallel circuit containing one 30-Ω resistor in each branch
and powered from a 10-V source,
what is the total current flowing in the circuit?
a. .33 A
b. .67 A
c. 40 A
d. 60 A
7. Which of the following determines total power in a series circuit?
a. source voltage times the current
b. total voltage applied to the circuit
c. current flowing through a switch
d. average of the wattage consumed by each resistor
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