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1992-01-26
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FCC TECHNICIAN Exam Question Pool. Subelement 3AE.
Electrical Principles. 3 Questions.
---------------------------------------------------
3AE 1-1.1 D
What is meant by the term resistance?
A. The opposition to the flow of current in an electric
circuit containing inductance
B. The opposition to the flow of current in an electric
circuit containing capacitance
C. The opposition to the flow of current in an electric
circuit containing reactance
D. The opposition to the flow of current in an electric
circuit that does not contain reactance
3AE 1-2.1 A
What is an ohm?
A. The basic unit of resistance
B. The basic unit of capacitance
C. The basic unit of inductance
D. The basic unit of admittance
3AE 1-2.2 D
What is the unit measurement of resistance?
A. Volt
B. Ampere
C. Joule
D. Ohm
3AE 1-3.1 B
Two equal-value resistors are connected in series. How does
the total resistance of this combination compare with the
value of either resistor by itself?
A. The total resistance is half the value of either resistor
B. The total resistance is twice the value of either resistor
C. The total resistance is the same as the value of either
resistor
D. The total resistance is the square of the value of either
resistor
3AE 1-3.2 D
How does the total resistance of a string of series-connected
resistors compare to the values of the individual resistors?
A. The total resistance is the square of the sum of all the
individual resistor values
B. The total resistance is the square root of the sum of the
individual resistor values
C. The total resistance is the sum of the squares of the
individual resistor values
D. The total resistance is the sum of all the individual
resistance values
3AE 1-4.1 B
Two equal-value resistors are connected in parallel. How does
the total resistance of this combination compare with the value
of either resistor by itself?
A. The total resistance is twice the value of either resistor
B. The total resistance is half the value of either resistor
C. The total resistance is the square of the value of either
resistor
D. The total resistance is the same as the value of either
resistor
3AE 1-4.2 C
How does the total resistance of a string of parallel-connected
resistors compare to the values of the individual resistors?
A. The total resistance is the square of the sum of the resistor
values
B. The total resistance is more than the highest-value resistor
in the combination
C. The total resistance is less than the smallest-value resistor
in the combination
D. The total resistance is the same as the highest-value resistor
in the combination
3AE 2.1 D
What is Ohm's law?
A. A mathematical relationship between resistance, voltage and
power in a circuit
B. A mathematical relationship between current, resistance and
power in a circuit
C. A mathematical relationship between current, voltage and
power in a circuit
D. A mathematical relationship between resistance, current and
applied voltage in a circuit
3AE 2.2 A
How is the current in a dc circuit calculated when the voltage
and resistance are known?
A. I = E / R
B. P = I x E
C. I = R x E
D. I = E x R
3AE 2.3 C
What is the input resistance of a load when a 12-volt battery
supplies 0.25 amperes to it?
A. 0.02 ohms
B. 3 ohms
C. 48 ohms
D. 480 ohms
3AE 2.4 D
The product of the current and what force gives the electrical
power in a circuit?
A. Magnetomotive force
B. Centripetal force
C. Electrochemical force
D. Electromotive force
3AE 2.5 B
What is the input resistance of a load when a 12-volt battery
supplies 0. 15 amperes to it?
A. 8 ohms
B. 80 ohms
C. 100 ohms
D. 800 ohms
3AE 2.6 D
When 120 volts is measured across a 4700-ohm resistor,
approximately how much current is flowing through it?
A. 39 amperes
B. 3.9 amperes
C. 0.26 ampere
D. 0.026 ampere
3AE 2.7 D
When 120 volts is measured across a 47000-ohm resistor,
approximately how much current is flowing through it?
A. 392 A
B. 39.2 A
C. 26 mA
D. 2.6 mA
3AE 2.8 A
When 12 volts is measured across a 4700-ohm resistor,
approximately how much current is flowing through it?
A. 2.6 mA
B. 26 mA
C. 39.2 A
D. 392 A
3AE 2.9 A
When 12 volts is measured across a 47000-ohm resistor,
approximately how much current is flowing through it?
A. 255 µA
B. 255 mA
C. 3917 mA
D. 3917 A
3AE 3-1.1 C
What is the term used to describe the ability of a component
to store energy in a magnetic field?
A. Admittance
B. Capacitance
C. Inductance
D. Resistance
3AE 3-2.1 C
What is the basic unit of inductance?
A. Coulomb
B. Farad
C. Henry
D. Ohm
3AE 3-2.2 C
What is a henry?
A. The basic unit of admittance
B. The basic unit of capacitance
C. The basic unit of inductance
D. The basic unit of resistance
3AE 3-2.3 B
What is a microhenry?
A. A basic unit of inductance equal to 10-12 henrys
B. A basic unit of inductance equal to 10-6 henrys
C. A basic unit of inductance equal to l0-3 henrys
D. A basic unit of inductance equal to 10+6 henrys
3AE 3-2.4 C
What is a millihenry?
A. A basic unit of inductance equal to 10-12 henrys
B. A basic unit of inductance equal to 10-6 henrys
C. A basic unit of inductance equal to 10-3 henrys
D. A basic unit of inductance equal to 10+6 henrys
3AE 3-3.1 B
Two equal-value inductors are connected in series. How does
the total inductance of this combination compare with the
value of either inductor by itself?
A. The total inductance is half the value of either inductor
B. The total inductance is twice the value of either inductor
C. The total inductance is equal to the value of either
inductor
D. No comparison can be made without knowing the exact
inductances
3AE 3-3.2 C
How does the total inductance of a string of series-connected
inductors compare to the values of the individual inductors?
A. The total inductance is equal to the average of all the
individual inductances
B. The total inductance is equal to less than the value of the
smallest inductance
C. The total inductance is equal to the sum of all the individual
inductances
D. No comparison can be made without knowing the exact
inductances
3AE 3-4.1 A
Two equal-value inductors are connected in parallel. How does
the total inductance of this combination compare with the value
of either inductor by itself?
A. The total inductance is half the value of either inductor
B. The total inductance is twice the value of either inductor
C. The total inductance is equal to the square of either
inductance
D. No comparison can be made without knowing the exact
inductances
3AE 3-4.2 B
How does the total inductance of a string of parallel-connected
inductors compare to the values of the individual inductors?
A. The total inductance is equal to the sum of the inductances
in the combination
B. The total inductance is less than the smallest inductance
value in the combination
C. The total inductance is equal to the average of the
inductances in the combination
D. No comparison can be made without knowing the exact
inductances
3AE 4-1.1 A
What is the term used to describe the ability of a component
to store energy in an electric field?
A. Capacitance
B. Inductance
C. Resistance
D. Tolerance
3AE 4-2.1 A
What is the basic unit of capacitance?
A. Farad
B. Ohm
C. Volt
D. Ampere
3AE 4-2.2 B
What is a microfarad?
A. A basic unit of capacitance equal to 10-12 farads
B. A basic unit of capacitance equal to 10-6 farads
C. A basic unit of capacitance equal to 10-2 farads
D. A basic unit of capacitance equal to 10+6 farads
3AE 4-2.3 A
What is a picofarad?
A. A basic unit of capacitance equal to 10-12 farads
B. A basic unit of capacitance equal to 10-6 farads
C. A basic unit of capacitance equal to 10-2 farads
D. A basic unit of capacitance equal to 10+6 farads
3AE 4-2.4 B
What is a farad?
A. The basic unit of resistance
B. The basic unit of capacitance
C. The basic unit of inductance
D. The basic unit of admittance
3AE 4-3.1 C
Two equal-value capacitors are connected in series. How does
the total capacitance of this combination compare with the value
of either capacitor by itself?
A. The total capacitance is twice the value of either capacitor
B. The total capacitance is equal to the value of either capacitor
C. The total capacitance is half the value of either capacitor
D. No comparison can be made without knowing the exact
capacitances
3AE 4-3.2 B
How does the total capacitance of a string of series-connected
capacitors compare to the values of the individual capacitors?
A. The total capacitance is equal to the sum of the capacitances
in the combination
B. The total capacitance is less than the smallest value of
capacitance in the combination
C. The total capacitance is equal to the average of the
capacitances in the combination
D. No comparison can be made without knowing the exact
capacitances
3AE 4-4.1 A
Two equal-value capacitors are connected in parallel. How does
the total capacitance of this combination compare with the value
of either capacitor by itself?
A. The total capacitance is twice the value of either capacitor
B. The total capacitance is half the value of either capacitor
C. The total capacitance is equal to the value of either capacitor
D. No comparison can be made without knowing the exact
capacitances
3AE 4-4.2 A
How does the total capacitance of a string of parallel-connected
capacitors compare to the values of the individual capacitors?
A. The total capacitance is equal to the sum of the capacitances
in the combination
B. The total capacitance is less than the smallest value of
capacitance in the combination
C. The total capacitance is equal to the average of the
capacitances in the combination
D. No comparison can be made without knowing the exact
capacitances
--------------------------------------------------
End of Subelement 3AE.