Ham General License Practice Quiz


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

G0A04: What does "time averaging" mean in reference to RF radiation exposure?

The average time of day when the exposure occurs
The average time it takes RF radiation to have any long-term effect on the body
The total time of the exposure
The total RF exposure averaged over a certain time

G0B01: Which wire or wires in a four-conductor line cord should be attached to fuses or circuit breakers in a device operated from a 240-VAC single-phase source?

Only the hot wires
Only the neutral wire
Only the ground wire
All wires

G1A14: Which of the following applies when the FCC rules designate the Amateur Service as a secondary user on a band?

Amateur stations must record the call sign of the primary service station before operating on a frequency assigned to that station
Amateur stations are allowed to use the band only during emergencies
Amateur stations are allowed to use the band only if they do not cause harmful interference to primary users
Amateur stations may only operate during specific hours of the day, while primary users are permitted 24 hour use of the band

G1B04: Which of the following must be true before amateur stations may provide communications to broadcasters for dissemination to the public?

The communications must directly relate to the immediate safety of human life or protection of property and there must be no other means of communication reasonably available before or at the time of
The communications must be approved by a local emergency preparedness official and conducted on officially designated frequencies
The FCC must have declared a state of emergency
All of these choices are correct

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

G2A10: Which of the following statements is true of SSB VOX operation?

The received signal is more natural sounding
VOX allows "hands free" operation
Frequency spectrum is conserved
Provides more power output

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

G2D02: Which of the following are objectives of the Amateur Auxiliary?

To conduct efficient and orderly amateur licensing examinations
To encourage amateur self regulation and compliance with the rules
To coordinate repeaters for efficient and orderly spectrum usage
To provide emergency and public safety communications

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

G3A10: What causes HF propagation conditions to vary periodically in a 28-day cycle?

Long term oscillations in the upper atmosphere
Cyclic variation in the Earth's radiation belts
The Sun's rotation on its axis
The position of the Moon in its orbit

G3B07: What does LUF stand for?

The Lowest Usable Frequency for communications between two points
The Longest Universal Function for communications between two points
The Lowest Usable Frequency during a 24 hour period
The Longest Universal Function during a 24 hour period

G3C03: Why is the F2 region mainly responsible for the longest distance radio wave propagation?

Because it is the densest ionospheric layer
Because it does not absorb radio waves as much as other ionospheric regions
Because it is the highest ionospheric region
All of these choices are correct

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

G4B12: What problem can occur when making measurements on an antenna system with an antenna analyzer?

SWR readings may be incorrect if the antenna is too close to the Earth
Strong signals from nearby transmitters can affect the accuracy of measurements
The analyzer can be damaged if measurements outside the ham bands are attempted
Connecting the analyzer to an antenna can cause it to absorb harmonics

G4C12: Which of the following is an advantage of a receiver Digital Signal Processor IF filter as compared to an analog filter?

A wide range of filter bandwidths and shapes can be created
Fewer digital components are required
Mixing products are greatly reduced
The DSP filter is much more effective at VHF frequencies

G4D06: Where is an S meter found?

In a receiver
In an SWR bridge
In a transmitter
In a conductance bridge

G4E03: Which of the following direct, fused power connections would be the best for a 100-watt HF mobile installation?

To the battery using heavy gauge wire
To the alternator or generator using heavy gauge wire
To the battery using resistor wire
To the alternator or generator using resistor wire

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

G5B13: What is the output PEP of an unmodulated carrier if an average reading wattmeter connected to the transmitter output indicates 1060 watts?

530 watts
1060 watts
1500 watts
2120 watts

G5C10: What is the inductance of three 10 millihenry inductors connected in parallel?

.30 Henrys
3.3 Henrys
3.3 millihenrys
30 millihenrys

G6A08: Which of the following describes a thermistor?

A resistor that is resistant to changes in value with temperature variations
A device having a specific change in resistance with temperature variations
A special type of transistor for use at very cold temperatures
A capacitor that changes value with temperature

G6B06: Which of the following is an advantage of using a Schottky diode in an RF switching circuit as compared to a standard silicon diode?

Lower capacitance
Lower inductance
Longer switching times
Higher breakdown voltage

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

G7A04: What is the peak-inverse-voltage across the rectifier in a half-wave power supply?

One-half the normal peak output voltage of the power supply
One-half the normal output voltage of the power supply
Equal to the normal output voltage of the power supply
Two times the normal peak output voltage of the power supply

G7B02: Which of the following is an advantage of using the binary system when processing digital signals?

Binary "ones" and "zeros" are easy to represent with an "on" or "off" state
The binary number system is most accurate
Binary numbers are more compatible with analog circuitry
All of these choices are correct

G7C10: How is Digital Signal Processor filtering accomplished?

By using direct signal phasing
By converting the signal from analog to digital and using digital processing
By differential spurious phasing
By converting the signal from digital to analog and taking the difference of mixing products

G8A10: What is meant by flat-topping of a single-sideband phone transmission?

Signal distortion caused by insufficient collector current
The transmitter's automatic level control is properly adjusted
Signal distortion caused by excessive drive
The transmitter's carrier is properly suppressed

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

G9A04: What is the reason for the occurrence of reflected power at the point where a feed line connects to an antenna?

Operating an antenna at its resonant frequency
Using more transmitter power than the antenna can handle
A difference between feed-line impedance and antenna feed-point impedance
Feeding the antenna with unbalanced feed line

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

G9C15: Approximately how long is each side of a quad antenna reflector element?

Slightly less than 1/4 wavelength
Slightly more than 1/4 wavelength
Slightly less than 1/2 wavelength
Slightly more than 1/2 wavelength

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