FCC Technician Exam Question Pool.   Subelement 3AF.
Circuit Components.     2 Questions.


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3F 1.1   B
How can a carbon resistor's electrical
tolerance rating be found?

 A. By using a wavemeter.
 B. By using the resistor's color code.
 C. By using Thevenin's theorem for resistors.
 D. By using the Baudot code.


3F 1.2   C
Why would a large size resistor be substituted
for a smaller one of the same resistance?

 A. To obtain better response.
 B. To obtain a higher current gain.
 C. To increase power dissipation capability.
 D. To produce a greater parallel impedance.


3F 1.3   A
What do the first three color bands on a resistor indicate?

 A. The value of the resistor in Ohms.
 B. The resistance tolerance in Percent.
 C. The power rating in Watts.
 D. The value of the resistor in Henrys.


3F 1.4   B
What does the does the forth color band on a resistor indicate?

 A. The value of the resistor in Ohms.
 B. The resistance tolerance in Percent.
 C. The power rating in Watts.
 D. The resistor composition.


3F 1.6   C
If the color bands on a group of resistors indicate that
that they all have the same resistance, what further
information about each resistor is needed to select 
those that have nearly equal value?

 A. The working voltage rating of each resistor.
 B. The composition of each resistor.
 C. The tolerance of each resistor.
 D. The current rating of each resistor.


3F 2.1   B
As the plate area of a capacitor increases,
what happens to its capacitance?

 A. Decreases.
 B. Increases.
 C. Stays the same.
 D. Becomes voltage dependent.


3F 2.2   D
As the plate spacing of a capacitor increases,
what happens to its capacitance?

 A. Increases.
 B. Stays the same.
 C. Becomes voltage dependent.
 D. Decreases.


3F 2.3   C
What is an ELECTROLYTIC CAPACITOR?

 A. A capacitor whose plates are formed
    on a thin ceramic layer.
 B. A capacitor whose plates are separated
    by a thin strip of Mica insulation.
 C. A capacitor whose dielectric is formed on one
    set of plate through electrochemical action.
 D. A capacitor whose value varies with applied voltage.


3F 2.4   C
What is a PAPER CAPACITOR?

 A. A capacitor whose plates are formed
    on a thin ceramic layer.
 B. A capacitor whose plates are separated
    by a thin strip of Mica insulation.
 C. A capacitor whose plates are separated
    by a layer of paper.
 D. A capacitor whose dielectric is formed on one
    set of plate through electrochemical action.


3F 2.5   A
What factors must be considered when
selecting a capacitor for a circuit?

 A. Type of capacitor, capacitance and voltage rating.
 B. Type of capacitor, capacitance and the Kilowatt-Hour rating.
 C. The amount of capacitance, the temperature
    coefficient and the KVA rating.
 D. The type of capacitor, the microscopy coefficient
    and the temperature coefficient.


3F 2.8   B
How are the characteristics of a capacitor usually specified?

 A. In Volts and Amperes.
 B. In Microfarads and Volts.
 C. In Ohms and Watts.
 D. In Milihenrys and Amperes.


3F 3.1   B
What can be done to raise the inductance of a
5 Microhenry Air Core coil to a 5 Milihenry coil
coil of the same physical dimensions.

 A. The coil must be wound on a non-conducting tube.
 B. The coil must be wound on an iron core.
 C. Both ends of the coil must be brought around to form the
    shape of a doughnut, or toroid.
 D. The coil must be made of a heavier-gauge wire.


3F 3.2   D
Describe an INDUCTOR.

 A. A semiconductor in a conducting shield.
 B. Two parallel conducting plates.
 C. A straight wire conductor mounted inside a Faraday shield.
 D. A coil of conducting wire.


3F 3.3   A
As an Iron core is inserted in a coil,
what happens to its inductance?

 A. It increases.
 B. It decreases.
 C. It stays the same.
 D. It becomes voltage-dependent.


3F 3.4   B
As a Brass core is inserted in a coil,
what happens to its inductance?

 A. It increases.
 B. It decreases.
 C. It stays the same.
 D. It becomes voltage-dependent.


3F 3.5   C
For radio frequency power applications, which
type of Inductor has the least amount of loss?

 A. Magnetic wire.
 B. Iron core.
 C. Air-core.
 D. Slug-tuned.


3F 3.6   B
Where does an Inductor store energy?

 A. In a capacitive field.
 B. In a magnetic field.
 C. In an electrical field.
 D. In a resistive field.


3F 5.3   B
What is a HEAT SINK?

 A. A device used to heat an electrical component uniformly.
 B. A device used to remove heat from an electronic component.
 C. A tub in which circuit boards are soldered.
 D. A fan used for transmitter cooling.


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End of Subelement 3AF.