Ham General License Practice Quiz
• Percentage: 0%; Correct: 0; Total: 0 of 35
G0A02: Which of the following properties is important in estimating whether an RF signal exceeds the maximum permissible exposure (MPE)?
Its duty cycle
Its frequency
Its power density
All of these choices are correct
G0B09: Why should soldered joints not be used with the wires that connect the base of a tower to a system of ground rods?
The resistance of solder is too high
Solder flux will prevent a low conductivity connection
Solder has too high a dielectric constant to provide adequate lightning protection
A soldered joint will likely be destroyed by the heat of a lightning strike
G1A09: Which of the following frequencies is within the General Class portion of the 80 meter band?
1855 kHz
2560 kHz
3560 kHz
3650 kHz
G1B12: Who or what determines 'good engineering and good amateur practice' as applied to the operation of an amateur station in all respects not covered by the Part 97 rules?
The FCC
The Control Operator
The IEEE
The ITU
G1C11: What is the maximum symbol rate permitted for RTTY or data emission transmissions on the 2 meter band?
56 kilobaud
19.6 kilobaud
1200 baud
300 baud
G1D10: What is the minimum age that one must be to qualify as an accredited Volunteer Examiner?
12 years
18 years
21 years
There is no age limit
G1E09: What language must you use when identifying your station if you are using a language other than English in making a contact using phone emission?
The language being used for the contact
Any language if the US has a third party agreement with that country
English
Any language of a country that is a member of the ITU
G2A11: What does the expression "CQ DX" usually indicate?
A general call for any station
The caller is listening for a station in Germany
The caller is looking for any station outside their own country
A distress call
G2B10: When may the FCC restrict normal frequency operations of amateur stations participating in RACES?
When they declare a temporary state of communication emergency
When they seize your equipment for use in disaster communications
Only when all amateur stations are instructed to stop transmitting
When the President's War Emergency Powers have been invoked
G2C02: What should you do if a CW station sends "QRS"?
Send slower
Change frequency
Increase your power
Repeat everything twice
G2D10: What is QRP operation?
Remote piloted model control
Low power transmit operation
Transmission using Quick Response Protocol
Traffic relay procedure net operation
G2E07: What does the abbreviation "RTTY" stand for?
Returning to you
Radioteletype
A general call to all digital stations
Repeater transmission type
G3A16: What is a possible benefit to radio communications resulting from periods of high geomagnetic activity?
Aurora that can reflect VHF signals
Higher signal strength for HF signals passing through the polar regions
Improved HF long path propagation
Reduced long delayed echoes
G3B10: What is the approximate maximum distance along the Earth's surface that is normally covered in one hop using the E region?
180 miles
1,200 miles
2,500 miles
12,000 miles
G3C09: What type of radio wave propagation allows a signal to be detected at a distance too far for ground wave propagation but too near for normal sky-wave propagation?
Faraday rotation
Scatter
Sporadic-E skip
Short-path skip
G4A07: What condition can lead to permanent damage when using a solid-state RF power amplifier?
Exceeding the Maximum Usable Frequency
Low input SWR
Shorting the input signal to ground
Excessive drive power
G4B06: What is an advantage of a digital voltmeter as compared to an analog voltmeter?
Better for measuring computer circuits
Better for RF measurements
Better precision for most uses
Faster response
G4C10: What could be a symptom of a ground loop somewhere in your station?
You receive reports of "hum" on your station's transmitted signal
The SWR reading for one or more antennas is suddenly very high
An item of station equipment starts to draw excessive amounts of current
You receive reports of harmonic interference from your station
G4D11: How close to the upper edge of the 20 meter General Class band should your displayed carrier frequency be when using 3 kHz wide'USB?
3 kHz above the edge of the band
3 kHz below the edge of the band
Your displayed carrier frequency may be set at the edge of the band
Center your signal on the edge of the band
G4E04: Why is it best NOT to draw the DC power for a 100-watt HF transceiver from an automobile's auxiliary power socket?
The socket is not wired with an RF-shielded power cable
The socket's wiring may be inadequate for the current being drawn by the
The DC polarity of the socket is reversed from the polarity of modern HF
Drawing more than 50 watts from this socket could cause the engine to overheat
G5A07: What happens when the impedance of an electrical load is equal to the internal impedance of the power source?
The source delivers minimum power to the load
The electrical load is shorted
No current can flow through the circuit
The source can deliver maximum power to the load
G5B01: A two-times increase or decrease in power results in a change of how many dB?
Approximately 2 dB
Approximately 3 dB
Approximately 6 dB
Approximately 12 dB
G5C05: If three equal value resistors in parallel produce 50 ohms of resistance, and the same three resistors in series produce 450 ohms, what is the value of each resistor?
1500 ohms
90 ohms
150 ohms
175 ohms
G6A13: What is an effect of inter-turn capacitance in an inductor?
The magnetic field may become inverted
The inductor may become self resonant at some frequencies
The permeability will increase
The voltage rating may be exceeded
G6B11: Which of the following solid state devices is most like a vacuum tube in its general operating characteristics?
A bipolar transistor
A Field Effect Transistor
A tunnel diode
A varistor
G6C13: Which of these connector types is commonly used for RF service at frequencies up to 150 MHz?
Octal
RJ-11
PL-259
DB-25
G7A06: What portion of the AC cycle is converted to DC by a full-wave rectifier?
90 degrees
180 degrees
270 degrees
360 degrees
G7B13: What is the reason for neutralizing the final amplifier stage of a transmitter?
To limit the modulation index
To eliminate self-oscillations
To cut off the final amplifier during standby periods
To keep the carrier on frequency
G7C03: What circuit is used to process signals from the RF amplifier and local oscillator and send the result to the IF filter in a superheterodyne receiver?
Balanced modulator
IF amplifier
Mixer
Detector
G8A11: What happens to the RF carrier signal when a modulating audio signal is applied to an FM transmitter?
The carrier frequency changes proportionally to the instantaneous amplitude of the modulating signal
The carrier frequency changes proportionally to the amplitude and frequency of the modulating signal
The carrier amplitude changes proportionally to the instantaneous frequency of the modulating signal
The carrier phase changes proportionally to the instantaneous amplitude of the modulating signal
G8B04: What is the name of the stage in a VHF FM transmitter that generates a harmonic of a lower frequency signal to reach the desired operating frequency?
Mixer
Reactance modulator
Pre-emphasis network
Multiplier
G9A05: How does the attenuation of coaxial cable change as the frequency of the signal it is carrying increases?
It is independent of frequency
It increases
It decreases
It reaches a maximum at approximately 18 MHz
G9B01: What is one disadvantage of a directly fed random-wire antenna?
It must be longer than 1 wavelength
You may experience RF burns when touching metal objects in your station
It produces only vertically polarized radiation
It is not effective on the higher HF bands
G9C04: Which statement about a three-element; single-band Yagi antenna is true?
The reflector is normally the longest parasitic element
The director is normally the longest parasitic element
The reflector is normally the shortest parasitic element
All of the elements must be the same length
G9D06: Which of the following is an advantage of a log periodic antenna?
Wide bandwidth
Higher gain per element than a Yagi antenna
Harmonic suppression
Polarization diversity
