Ham General License Practice Quiz


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

G0A10: What is one thing that can be done if evaluation shows that a neighbor might receive more than the allowable limit of RF exposure from the main lobe of a directional antenna?

Change from horizontal polarization to vertical polarization
Change from horizontal polarization to circular polarization
Use an antenna with a higher front-to-back ratio
Take precautions to ensure that the antenna cannot be pointed in their direction

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

G1A13: Which, if any, amateur band is shared with the Citizens Radio Service?

10 meters
12 meters
15 meters
None

G1B07: What are the restrictions on the use of abbreviations or procedural signals in the Amateur Service?

Only "Q" codes are permitted
They may be used if they do not obscure the meaning of a message
They are not permitted
Only "10 codes" are permitted

G1C01: What is the maximum transmitting power an amateur station may use on 10.140 MHz?

200 watts PEP output
1000 watts PEP output
1500 watts PEP output
2000 watts PEP output

G1D04: Which of the following is a requirement for administering a Technician Class operator examination?

At least three VEC accredited General Class or higher VEs must be present
At least two VEC accredited General Class or higher VEs must be present
At least two General Class or higher VEs must be present, but only one need be VEC accredited
At least three VEs of Technician Class or higher must be present

G1E02: When may a 10 meter repeater retransmit the 2 meter signal from a station having a Technician Class control operator?

Under no circumstances
Only if the station on 10 meters is operating under a Special Temporary Authorization allowing such retransmission
Only during an FCC declared general state of communications emergency
Only if the 10 meter repeater control operator holds at least a General Class license

G2A03: Which of the following is most commonly used for SSB voice communications in the VHF and UHF bands?

Upper sideband
Lower sideband
Vestigial sideband
Double sideband

G2B08: What is the 'DX window' in a voluntary band plan?

A portion of the band that should not be used for contacts between stations within the 48 contiguous United States
An FCC rule that prohibits contacts between stations within the United States and possessions on that band segment
An FCC rule that allows only digital contacts in that portion of the band
A portion of the band that has been voluntarily set aside for digital contacts only

G2C01: Which of the following describes full break-in telegraphy (QSK)?

Breaking stations send the Morse code prosign BK
Automatic keyers are used to send Morse code instead of hand keys
An operator must activate a manual send/receive switch before and after every transmission
Transmitting stations can receive between code characters and elements

G2D04: Which of the following describes an azimuthal projection map?

A world map that shows accurate land masses
A world map projection centered on a particular location
A world map that shows the angle at which an amateur satellite crosses the equator
A world map that shows the number of degrees longitude that an amateur satellite appears to move westward at the equator with each orbit

G2E09: In what segment of the 20 meter band are most PSK31 operations commonly found?

At the bottom of the slow-scan TV segment, near 14.230 MHz
At the top of the SSB phone segment near 14.325 MHz
In the middle of the CW segment, near 14.100 MHz
Below the RTTY segment, near 14.070 MHz

G3A02: What effect does a Sudden Ionospheric Disturbance have on the daytime ionospheric propagation of HF radio waves?

It enhances propagation on all HF frequencies
It disrupts signals on lower frequencies more than those on higher frequencies
It disrupts communications via satellite more than direct communications
None, because only areas on the night side of the Earth are affected

G3B12: What factors affect the Maximum Usable Frequency (MUF)?

Path distance and location
Time of day and season
Solar radiation and ionospheric disturbances
All of these choices are correct

G3C12: Which ionospheric layer is the most absorbent of long skip signals during daylight hours on frequencies below 10 MHz?

The F2 layer
The F1 layer
The E layer
The D layer

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

G4B04: What signal source is connected to the vertical input of an oscilloscope when checking the RF envelope pattern of a transmitted signal?

The local oscillator of the transmitter
An external RF oscillator
The transmitter balanced mixer output
The attenuated RF output of the transmitter

G4C09: How can a ground loop be avoided?

Connect all ground conductors in series
Connect the AC neutral conductor to the ground wire
Avoid using lock washers and star washers when making ground connections
Connect all ground conductors to a single point

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

G4E10: What is the reason a series diode is connected between a solar panel and a storage battery that is being charged by the panel?

The diode serves to regulate the charging voltage to prevent overcharge
The diode prevents self discharge of the battery though the panel during times of low or no illumination
The diode limits the current flowing from the panel to a safe value
The diode greatly increases the efficiency during times of high illumination

G5A02: What is reactance?

Opposition to the flow of direct current caused by resistance
Opposition to the flow of alternating current caused by capacitance or inductance
A property of ideal resistors in AC circuits
A large spark produced at switch contacts when an inductor is de-energized

G5B08: What is the peak-to-peak voltage of a sine wave that has an RMS voltage of 120 volts?

84.8 volts
169.7 volts
240.0 volts
339.4 volts

G5C02: Which part of a transformer is normally connected to the incoming source of energy?

The secondary
The primary
The core
The plates

G6A06: What will happen to the resistance if the temperature of a resistor is increased?

It will change depending on the resistor's reactance coefficient
It will stay the same
It will change depending on the resistor's temperature coefficient
It will become time dependent

G6B05: What is the approximate junction threshold voltage of a conventional silicon diode?

0.1 volt
0.3 volts
0.7 volts
1.0 volts

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

G7A11: Which symbol in figure G7-1 represents an NPN junction transistor?

Symbol 1
Symbol 2
Symbol 7
Symbol 11

G7B10: Which of the following is a characteristic of a Class A amplifier?

Low standby power
High Efficiency
No need for bias
Low distortion

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

G8A04: What emission is produced by a reactance modulator connected to an RF power amplifier?

Multiplex modulation
Phase modulation
Amplitude modulation
Pulse modulation

G8B01: What receiver stage combines a 14.250 MHz input signal with a 13.795 MHz oscillator signal to produce a 455 kHz intermediate frequency (IF) signal?

Mixer
BFO
VFO
Discriminator

G9A06: In what values are RF feed line losses usually expressed?

ohms per 1000 ft
dB per 1000 ft
ohms per 100 ft
dB per 100 ft

G9B12: What is the approximate length for a 1/4-wave vertical antenna cut for 28.5 MHz?

8 feet
11 feet
16 feet
21 feet

G9C12: Which of the following is an advantage of using a gamma match for impedance matching of a Yagi antenna to 50-ohm coax feed line?

It does not require that the elements be insulated from the boom
It does not require any inductors or capacitors
It is useful for matching multiband antennas
All of these choices are correct

G9D03: At what height above ground is an NVIS antenna typically installed?

As close to one-half wave as possible
As close to one wavelength as possible
Height is not critical as long as it is significantly more than 1/2 wavelength
Between 1/10 and 1/4 wavelength