Ham General License Practice Quiz

• Percentage: 0%; Correct: 0; Total: 0 of 35

G0A13: What precaution should be taken when installing a ground-mounted antenna?

It should not be installed higher than you can reach
It should not be installed in a wet area
It should limited to 10 feet in height
It should be installed so no one can be exposed to RF radiation in excess of maximum permissible limits

G0B02: What is the minimum wire size that may be safely used for a circuit that draws up to 20 amperes of continuous current?

AWG number 20
AWG number 16
AWG number 12
AWG number 8

G1A11: Which of the following frequencies is available to a control operator holding a General Class license?

28.020 MHz
28.350 MHz
28.550 MHz
All of these choices are correct

G1B10: What is the power limit for beacon stations?

10 watts PEP output
20 watts PEP output
100 watts PEP output
200 watts PEP output

G1C07: What is the maximum symbol rate permitted for RTTY or data emission transmission on the 20 meter band?

56 kilobaud
19.6 kilobaud
1200 baud
300 baud

G1D01: Which of the following is a proper way to identify when transmitting using phone on General Class frequencies if you have a CSCE for the required elements but your upgrade from Technician has not appeared in the FCC database?

Give your call sign followed by the words "General Class"
No special identification is needed
Give your call sign followed by "slant AG"
Give your call sign followed the abbreviation 'CSCE'

G1E01: Which of the following would disqualify a third party from participating in stating a message over an amateur station?

The third party's amateur license had ever been revoked
The third party is not a U.S. citizen
The third party is a licensed amateur
The third party is speaking in a language other than English, French, or Spanish

G2A05: Which mode of voice communication is most commonly used on the high frequency amateur bands?

Frequency modulation
Double sideband
Single sideband
Phase modulation

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

G2C08: What prosign is sent to indicate the end of a formal message when using CW?


G2D08: Why do many amateurs keep a log even though the FCC doesn't require it?

The ITU requires a log of all international contacts
The ITU requires a log of all international third party traffic
The log provides evidence of operation needed to renew a license without retest
To help with a reply if the FCC requests information

G2E04: What segment of the 20 meter band is most often used for data transmissions?

14.000 - 14.050 MHz
14.070 - 14.100 MHz
14.150 - 14.225 MHz
14.275 - 14.350 MHz

G3A09: What effect do high sunspot numbers have on radio communications?

High-frequency radio signals become weak and distorted
Frequencies above 300 MHz become usable for long-distance communication
Long-distance communication in the upper HF and lower VHF range is enhanced
Microwave communications become unstable

G3B06: What usually happens to radio waves with frequencies below the Lowest Usable Frequency (LUF)?

They are bent back to the Earth
They pass through the ionosphere
They are completely absorbed by the ionosphere
They are bent and trapped in the ionosphere to circle the Earth

G3C04: What does the term 'critical angle' mean as used in radio wave propagation?

The long path azimuth of a distant station
The short path azimuth of a distant station
The lowest takeoff angle that will return a radio wave to the Earth under specific ionospheric conditions
The highest takeoff angle that will return a radio wave to the Earth under specific ionospheric conditions

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

G4B05: Why is high input impedance desirable for a voltmeter?

It improves the frequency response
It decreases battery consumption in the meter
It improves the resolution of the readings
It decreases the loading on circuits being measured

G4C05: 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?

Flat braid rather than round wire has been used for the ground wire
Insulated wire has been used for the ground wire
The ground rod is resonant
The ground wire has high impedance on that frequency

G4D08: What frequency range is occupied by a 3 kHz LSB signal when the displayed carrier frequency is set to 7.178 MHz?

7.178 to 7.181 MHz
7.178 to 7.184 MHz
7.175 to 7.178 MHz
7.1765 to 7.1795 MHz

G4E02: What is the purpose of a "corona ball" on a HF mobile antenna?

To narrow the operating bandwidth of the antenna
To increase the "Q" of the antenna
To reduce the chance of damage if the antenna should strike an object
To reduce high voltage discharge from the tip of the antenna

G5A13: Which of the following devices can be used for impedance matching at radio frequencies?

A transformer
A Pi-network
A length of transmission line
All of these choices are correct

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

G6A01: Which of the following is an important characteristic for capacitors used to filter the DC output of a switching power supply?

Low equivalent series resistance
High equivalent series resistance
Low Temperature coefficient
High Temperature coefficient

G6B10: Which element of a triode vacuum tube is used to regulate the flow of electrons between cathode and plate?

Control grid
Screen Grid
Trigger electrode

G6C09: Which of the following is a characteristic of a liquid crystal display?

It requires ambient or back lighting
It offers a wide dynamic range
It has a wide viewing angle
All of these choices are correct

G7A01: What safety feature does a power-supply bleeder resistor provide?

It acts as a fuse for excess voltage
It discharges the filter capacitors
It removes shock hazards from the induction coils
It eliminates ground-loop current

G7B05: How many states does a 3-bit binary counter have?


G7C07: What is the simplest combination of stages that implement a superheterodyne receiver?

RF amplifier, detector, audio amplifier
RF amplifier, mixer, IF discriminator
HF oscillator, mixer, detector
HF oscillator, pre-scaler, audio amplifier

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

G8B09: Why is it good to match receiver bandwidth to the bandwidth of the operating mode?

It is required by FCC rules
It minimizes power consumption in the receiver
It improves impedance matching of the antenna
It results in the best signal to noise ratio

G9A03: What is the characteristic impedance of flat ribbon TV type twinlead?

50 ohms
75 ohms
100 ohms
300 ohms

G9B10: What is the approximate length for a 1/2-wave dipole antenna cut for 14.250 MHz?

8 feet
16 feet
24 feet
32 feet

G9C16: How does the gain of a two-element delta-loop beam compare to the gain of a two-element quad antenna?

3 dB higher
3 dB lower
2.54 dB higher
About the same

G9D08: Why is a Beverage antenna not used for transmitting?

Its impedance is too low for effective matching
It has high losses compared to other types of antennas
It has poor directivity
All of these choices are correct