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.
What portion of the AC cycle is converted to DC by a half-wave rectifier?
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?
Why is high input impedance desirable for a voltmeter?
What is the maximum power limit on the 60-meter band?
Which of the following modes is most commonly used for voice communications on the 160-meter, 75-meter, and 40-meter bands?
On which of the following band segments may you operate if you are a Technician class operator and have a Certificate of Successful Completion of Examination (CSCE) for General class privileges?
Why is it best NOT to draw the DC power for a 100 watt HF transceiver from a vehicle's auxiliary power socket?
What dB change represents a factor of two increase or decrease in power?
According the National Electrical Code, what is the minimum wire size that may be used safely for wiring with a 20 ampere circuit breaker?
What is good amateur practice if propagation changes during a contact and you notice interference from other stations on the frequency?
Which of the following causes opposition to the flow of alternating current in a capacitor?
What is the approximate length for a 1/4 wave vertical antenna cut for 28.5 MHz?
What is the purpose of the "notch filter" found on many HF transceivers?
What is the capacitance of a 20 microfarad capacitor connected in series with a 50 microfarad capacitor?
What type of instrument can be used to accurately measure an RF field?
What is the stage in a VHF FM transmitter that generates a harmonic of a lower frequency signal to reach the desired operating frequency?
What is an advantage of the low internal resistance of nickel-cadmium batteries?
When may a 10-meter repeater retransmit the 2-meter signal from a station that has a Technician class control operator?
Which of the following frequencies is available to a control operator holding a General class license?
When is it permissible to communicate with amateur stations in countries outside the areas administered by the Federal Communications Commission?
How close to the lower edge of the phone segment should your displayed carrier frequency be when using 3 kHz wide LSB?
Which of the following describes a linear amplifier?
What is the name of the process that changes the instantaneous frequency of an RF wave to convey information?
How does the attenuation of coaxial cable change as the frequency of the signal it is carrying increases?
Which of the following describes a type N connector?
Why is long-distance communication on the 40-meter, 60-meter, 80-meter, and 160-meter bands more difficult during the day?
What does it mean when a CW operator sends "KN" at the end of a transmission?
How do the lengths of a three-element Yagi reflector and director compare to that of the driven element?
Which of the following are objectives of the Volunteer Monitoring Program?
What symptoms may result from other signals interfering with a PACTOR or WINMOR transmission?
What action results from a failure to exchange information due to excessive transmission attempts when using PACTOR or WINMOR?
What factors affect the MUF?
In which direction or directions does an electrically small loop (less than 1/3 wavelength in circumference) have nulls in its radiation pattern?
What circuit is used in analog FM receivers to convert IF output signals to audio?
Which of the following effects can a geomagnetic storm have on radio propagation?