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

G0B06: Why must the metal enclosure of every item of station equipment be grounded?

It prevents blowing of fuses in case of an internal short circuit
It prevents signal overload
It ensures that the neutral wire is grounded
It ensures that hazardous voltages cannot appear on the chassis

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

10 meters
12 meters
15 meters
None

G1B02: With which of the following conditions must beacon stations comply?

A beacon station may not use automatic control
The frequency must be coordinated with the National Beacon Organization
The frequency must be posted on the Internet or published in a national periodical
There must be no more than one beacon signal in the same band from a single location

G1C06: Which of the following is a limitation on transmitter power on 1.8 MHz band?

200 watts PEP output
1000 watts PEP output
1200 watts PEP output
1500 watts PEP output

G1D02: What license examinations may you administer when you are an accredited VE holding a General Class operator license?

General and Technician
General only
Technician only
Extra, General and Technician

G1E07: With which foreign countries is third party traffic prohibited, except for messages directly involving emergencies or disaster relief communications?

Countries in ITU Region 2
Countries in ITU Region 1
Every foreign country, unless there is a third party agreement in effect with that country
Any country which is not a member of the International Amateur Radio Union (IARU)

G2A09: Why do most amateur stations use lower sideband on the 160, 75 and 40 meter bands?

Lower sideband is more efficient than upper sideband at these frequencies
Lower sideband is the only sideband legal on these frequency bands
Because it is fully compatible with an AM detector
Current amateur practice is to use lower sideband on these frequency bands

G2B07: Which of the following complies with good amateur practice when choosing a frequency on which to initiate a call?

Check to see if the channel is assigned to another station
Identify your station by transmitting your call sign at least 3 times
Follow the voluntary band plan for the operating mode you intend to use
All of these choices are correct

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

SK
BK
AR
KN

G2D03: What skills learned during 'hidden transmitter hunts' are of help to the Amateur Auxiliary?

Identification of out of band operation
Direction finding used to locate stations violating FCC Rules
Identification of different call signs
Hunters have an opportunity to transmit on non-amateur frequencies

G2E11: What does the abbreviation "MFSK" stand for?

Manual Frequency Shift Keying
Multi (or Multiple) Frequency Shift Keying
Manual Frequency Sideband Keying
Multi (or Multiple) Frequency Sideband Keying

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

G3B05: What usually happens to radio waves with frequencies below the Maximum Usable Frequency (MUF) and above the Lowest Usable Frequency (LUF) when they are sent into the ionosphere?

They are bent back to the Earth
They pass through the ionosphere
They are amplified by interaction with the ionosphere
They are bent and trapped in the ionosphere to circle the Earth

G3C07: What makes HF scatter signals often sound distorted?

The ionospheric layer involved is unstable
Ground waves are absorbing much of the signal
The E-region is not present
Energy is scattered into the skip zone through several different radio wave paths

G4A01: What is the purpose of the "notch filter" found on many HF transceivers?

To restrict the transmitter voice bandwidth
To reduce interference from carriers in the receiver passband
To eliminate receiver interference from impulse noise sources
To enhance the reception of a specific frequency on a crowded band

G4B13: What is a use for an antenna analyzer other than measuring the SWR of an antenna system?

Measuring the front to back ratio of an antenna
Measuring the turns ratio of a power transformer
Determining the impedance of an unknown or unmarked coaxial cable
Determining the gain of a directional antenna

G4C03: What sound is heard from an audio device or telephone if there is interference from a nearby single-sideband phone transmitter?

A steady hum whenever the transmitter is on the air
On-and-off humming or clicking
Distorted speech
Clearly audible speech

G4D07: How much must the power output of a transmitter be raised to change the S- meter reading on a distant receiver from S8 to S9?

Approximately 1.5 times
Approximately 2 times
Approximately 4 times
Approximately 8 times

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

G5A01: What is impedance?

The electric charge stored by a capacitor
The inverse of resistance
The opposition to the flow of current in an AC circuit
The force of repulsion between two similar electric fields

G5B11: What is the ratio of peak envelope power to average power for an unmodulated carrier?

.707
1.00
1.414
2.00

G5C13: Which of the following components should be added to a capacitor to increase the capacitance?

An inductor in series
A resistor in series
A capacitor in parallel
A capacitor in series

G6A04: Which of the following is an advantage of an electrolytic capacitor?

Tight tolerance
Non-polarized
High capacitance for given volume
Inexpensive RF capacitor

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

G6C12: Which of the following connectors would be a good choice for a serial data port?

PL-259
Type N
Type SMA
DE-9

G7A03: What is the peak-inverse-voltage across the rectifiers in a full-wave bridge power supply?

One-quarter the normal output voltage of the power supply
Half the normal output voltage of the power supply
Double the normal peak output voltage of the power supply
Equal to the normal peak output voltage of the power supply

G7B03: Which of the following describes the function of a two input AND gate?

Output is high when either or both inputs are low
Output is high only when both inputs are high
Output is low when either or both inputs are high
Output is low only when both inputs are high

G7C11: What is meant by the term "software defined radio" (SDR)?

A radio in which most major signal processing functions are performed by software
A radio which provides computer interface for automatic logging of band and frequency
A radio which uses crystal filters designed using software
A computer model which can simulate performance of a radio to aid in the design process

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

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

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

50 ohms
75 ohms
100 ohms
300 ohms

G9B05: How does antenna height affect the horizontal (azimuthal) radiation pattern of a horizontal dipole HF antenna?

If the antenna is too high, the pattern becomes unpredictable
Antenna height has no effect on the pattern
If the antenna is less than 1/2 wavelength high, the azimuthal pattern is almost omnidirectional
If the antenna is less than 1/2 wavelength high, radiation off the ends of the wire is eliminated

G9C08: What is meant by the "main lobe" of a directive antenna?

The magnitude of the maximum vertical angle of radiation
The point of maximum current in a radiating antenna element
The maximum voltage standing wave point on a radiating element
The direction of maximum radiated field strength from the antenna

G9D11: Which of the following is a disadvantage of multiband antennas?

They present low impedance on all design frequencies
They must be used with an antenna tuner
They must be fed with open wire line
They have poor harmonic rejection