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 happens when the impedance of an electrical load is equal to the output impedance of a power source, assuming both impedances are resistive?
Why must the metal enclosure of every item of station equipment be grounded?
Which of the following is true of an emergency generator installation?
How are radio communications usually affected by the charged particles that reach Earth from solar coronal holes?
Under what conditions are state and local governments permitted to regulate Amateur Radio antenna structures?
What is the total resistance of three 100 ohm resistors in parallel?
On which of the following bands is image transmission prohibited?
What does the term "critical angle" mean, as used in radio wave propagation?
Which of the following instruments may be used to monitor relative RF output when making antenna and transmitter adjustments?
What might cause reflected power at the point where a feed line connects to an antenna?
Which of the following applies when selecting a frequency for lowest attenuation when transmitting on HF?
Which of the following can be the result of an incorrectly adjusted speech processor?
Why is it important to know the duty cycle of the mode you are using when transmitting?
Which of the following is a characteristic of a liquid crystal display?
What is the most common frequency shift for RTTY emissions in the amateur HF bands?
What license examinations may you administer when you are an accredited VE holding a General class operator license?
In the PACTOR protocol, what is meant by a NAK response to a transmitted packet?
What is meant by the terms dBi and dBd when referring to antenna gain?
What is good amateur practice if propagation changes during a contact and you notice interference from other stations on the frequency?
What is the maximum transmitting power an amateur station may use on the 12-meter band?
Which of the following is an advantage of a switchmode power supply as compared to a linear power supply?
In which direction or directions does an electrically small loop (less than 1/3 wavelength in circumference) have nulls in its radiation pattern?
What is the radiation pattern of a dipole antenna in free space in a plane containing the conductor?
Which of the following is an effect of overmodulation?
The frequency allocations of which ITU region apply to radio amateurs operating in North and South America?
Which of the following is used to process signals from the balanced modulator then send them to the mixer in some single sideband phone transmitters?
What is the reason that a series diode is connected between a solar panel and a storage battery that is being charged by the panel?
Which of the following statements is true of the single sideband voice mode?
What is normally meant by operating a transceiver in "split" mode?
What happens when an inductor is operated above its self-resonant frequency?
What is the Volunteer Monitoring Program?
What is the output PEP of an unmodulated carrier if an average reading wattmeter connected to the transmitter output indicates 1060 watts?
What does the Q signal "QRN" mean?
What is a shift register?
Which of the following steps must an amateur operator take to ensure compliance with RF safety regulations when transmitter power exceeds levels specified in FCC Part 97.13?