Current Ham Radio Test Pools
Select the most correct answer for each question, then submit your practice test to check your score. This practice test randomly pulls one question from each topic in the General pool.
Which of the following frequencies is within the General class portion of the 80-meter band?
Which of these classes of amplifiers has the highest efficiency?
What does the K-index indicate?
What is meant by the "main lobe" of a directive antenna?
Which of the following describes full break-in telegraphy (QSK)?
Where should the radial wires of a ground-mounted vertical antenna system be placed?
Which type of code is used for sending characters in a PSK31 signal?
What is the output PEP from a transmitter if an oscilloscope measures 500 volts peak-to-peak across a 50 ohm resistive load connected to the transmitter output?
What effect does transmitter duty cycle have when evaluating RF exposure?
Which of the following is a reason not to use wire-wound resistors in an RF circuit?
What symptoms may result from other signals interfering with a PACTOR or WINMOR transmission?
When selecting an SSB transmitting frequency, what minimum separation should be used to minimize interference to stations on adjacent frequencies?
Which of the following is covered by the National Electrical Code?
If three equal value resistors in series produce 450 ohms, what is the value of each resistor?
Which of the following is the best instrument to use when checking the keying waveform of a CW transmitter?
What is an advantage of a half-wave rectifier in a power supply?
What might be the problem if you receive an RF burn when touching your equipment while transmitting on an HF band, assuming the equipment is connected to a ground rod?
What frequency range is occupied by a 3 kHz LSB signal when the displayed carrier frequency is set to 7.178 MHz?
Which of the following is an effect of overmodulation?
Which of the following are objectives of the Volunteer Monitoring Program?
What is the maximum height above ground to which an antenna structure may be erected without requiring notification to the FAA and registration with the FCC, provided it is not at or near a public use airport?
How long is a Certificate of Successful Completion of Examination (CSCE) valid for exam element credit?
Which mode of voice communication is most commonly used on the HF amateur bands?
The bandwidth of a band-pass filter is measured between what two frequencies?
Why is the F2 region mainly responsible for the longest distance radio wave propagation?
What is the limit for transmitter power on the 1.8 MHz band?
What might cause reflected power at the point where a feed line connects to an antenna?
In what part of the 13-centimeter band may an amateur station communicate with non-licensed Wi-Fi stations?
Which of the following most limits an HF mobile installation?
In which direction or directions does an electrically small loop (less than 1/3 wavelength in circumference) have nulls in its radiation pattern?
Which of the following can be a symptom of transmitted RF being picked up by an audio cable carrying AFSK data signals between a computer and a transceiver?
What is another term for the mixing of two RF signals?
How does an inductor react to AC?
What is the approximate maximum distance along the Earth's surface that is normally covered in one hop using the F2 region?
What kind of device is an integrated circuit operational amplifier?