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- FCC Novice Exam Question Pool. Subelement 2F.
- Circuit Components. 2 Questions.
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- One (1) question must be from the following:
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- 2F 1.1 C
- What is the general relationship between the thickness of a
- Quartz Crystal and its fundamental operating frequency?
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- A. The thickness of a crystal does not
- affect operating frequency.
- B. Thinner crystals oscillate at lower frequencies.
- C. Thinner crystals oscillate at higher frequencies.
- D. Thicker crystals oscillate at higher frequencies.
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- 2F 1.2 *
- What is the schematic symbol for a Quartz Crystal?
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- 2F 1.3 B
- What chief advantage does a crystal controlled transmitter
- have over one controlled by a Variable Frequency Oscillator?
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- A. The crystal controlled transmitter will not
- produce Key Clicks.
- B. The crystal controlled transmitter has better
- frequency stability.
- C. The crystal controlled transmitter does not
- need to be tuned.
- D. The crystal controlled transmitter can operate
- at a higher power output.
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- 2F 2.1 C
- What two internal components of a D'Arsonval Meter interact
- to cause the indicating needle to move when current
- flows through the meter?
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- A. A diode and a capacitor.
- B. A transformer and a resistor.
- C. A coil of wire and a permanent magnet.
- D. A dipole and a balun.
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- 2F 2.2 D
- What does a Voltmeter measure?
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- A. Resistance.
- B. Current.
- C. Power.
- D. Voltage.
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- One (1) question must be from the following:
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- 2F 3.1 *
- Draw the schematic diagram of a Triode vacuum tube
- and label the elements.
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- 2F 3.2 *
- Draw the schematic symbol of a Tetrode vacuum tube
- and label the elements.
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- 2F 3.3 *
- Draw the schematic symbol of a Pentode vacuum tube
- and label the elements.
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- 2F 4.1 A
- What device should be included in electronic equipment to
- protect it from damage resulting from a short circuit?
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- A. Fuse.
- B. Tube.
- C. Transformer.
- D. Filter.
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- 2F 4.2 D
- What happens to a fuse when an excessive amount
- of current flows through it?
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- A. The fuse explodes, the circuit is destroyed,
- the current increases.
- B. The fuse glows red or orange, the circuit shorts,
- the current increases.
- C. The fuse melts, the circuit shorts,
- the current increases.
- D. The metal conductor inside the fuse melts,
- the circuit opens, the current stops.
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- End of Subelement 2F.
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