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What's on the test
Topic
On the test
In the guide
Commission's Rules
5
52
Operating Procedures
5
60
Radio Wave Propagation
3
37
Amateur Radio Practices
5
60
Electrical Principles
3
40
Circuit Components
2
23
Practical Circuits
3
38
Signals and Emissions
3
42
Antennas and Feed Lines
4
46
Electrical and RF Safety
2
25
The exam takes one question from each group of the pool, so the count per topic is fixed.
10 sample questions
On which HF and/or MF amateur bands are there portions where General class licensees cannot transmit?
A.60 meters, 30 meters, 17 meters, and 12 meters
B.160 meters, 60 meters, 15 meters, and 12 meters
C.80 meters, 40 meters, 20 meters, and 15 meters
D.80 meters, 20 meters, 15 meters, and 10 meters
Show answer
C. 80 meters, 40 meters, 20 meters, and 15 meters
G1A01 · Commission's Rules · 47 CFR 97.301(d)
Which mode is most commonly used for voice communications on frequencies of 14 MHz or higher?
A.Upper sideband
B.Lower sideband
C.Suppressed sideband
D.Double sideband
Show answer
A. Upper sideband
G2A01 · Operating Procedures
How does a higher sunspot number affect HF propagation?
A.Higher sunspot numbers generally indicate a greater probability of good propagation at higher frequencies
B.Lower sunspot numbers generally indicate greater probability of sporadic E propagation
C.A zero sunspot number indicates that radio propagation is not possible on any band
D.A zero sunspot number indicates undisturbed conditions
Show answer
A. Higher sunspot numbers generally indicate a greater probability of good propagation at higher frequencies
G3A01 · Radio Wave Propagation
What is the purpose of the notch filter found on many HF transceivers?
A.To restrict the transmitter voice bandwidth
B.To reduce interference from carriers in the receiver passband
C.To eliminate receiver interference from impulse noise sources
D.To remove interfering splatter generated by signals on adjacent frequencies
Show answer
B. To reduce interference from carriers in the receiver passband
G4A01 · Amateur Radio Practices
What happens when inductive and capacitive reactance are equal in a series LC circuit?
A.Resonance causes impedance to be very high
B.Impedance is equal to the geometric mean of the inductance and capacitance
C.Resonance causes impedance to be very low
D.Impedance is equal to the arithmetic mean of the inductance and capacitance
Show answer
C. Resonance causes impedance to be very low
G5A01 · Electrical Principles
What is the minimum allowable discharge voltage for maximum life of a standard 12-volt lead-acid battery?
A.6 volts
B.8.5 volts
C.10.5 volts
D.12 volts
Show answer
C. 10.5 volts
G6A01 · Circuit Components
What is the function of a power supply bleeder resistor?
A.It acts as a fuse for excess voltage
B.It discharges the filter capacitors when power is removed
C.It removes shock hazards from the induction coils
D.It eliminates ground loop current
Show answer
B. It discharges the filter capacitors when power is removed
G7A01 · Practical Circuits
How is direct binary FSK modulation generated?
A.By keying an FM transmitter with a sub-audible tone
B.By changing an oscillator's frequency directly with a digital control signal
C.By using a transceiver's computer data interface protocol to change frequencies
D.By reconfiguring the CW keying input to act as a tone generator
Show answer
B. By changing an oscillator's frequency directly with a digital control signal
G8A01 · Signals and Emissions
Which of the following factors determine the characteristic impedance of a parallel conductor feed line?
A.The distance between the centers of the conductors and the radius of the conductors
B.The distance between the centers of the conductors and the length of the line
C.The radius of the conductors and the frequency of the signal
D.The frequency of the signal and the length of the line
Show answer
A. The distance between the centers of the conductors and the radius of the conductors
G9A01 · Antennas and Feed Lines
What is one way that RF energy can affect human body tissue?
A.It heats body tissue
B.It causes radiation poisoning
C.It causes the blood count to reach a dangerously low level