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- 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.
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- 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.
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- 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.
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- 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.
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- 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.
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- 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.
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- 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.
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- 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.
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- 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.
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- 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.
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- 3F 2.8 B
- How are the characteristics of a capacitor usually specified?
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- A. In Volts and Amperes.
- B. In Microfarads and Volts.
- C. In Ohms and Watts.
- D. In Milihenrys and Amperes.
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- 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.
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- 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.
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- 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.
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- 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.
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- 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.
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- 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.
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- 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.
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