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

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

G1A12: When General Class licensees are not permitted to use the entire voice portion of a particular band, which portion of the voice segment is generally available to them?

The lower frequency end
The upper frequency end
The lower frequency end on frequencies below 7.3 MHz and the upper end on frequencies above 14.150 MHz
The upper frequency end on frequencies below 7.3 MHz and the lower end on frequencies above 14.150 MHz

G1B06: When is an amateur station permitted to transmit secret codes?

During a declared communications emergency
To control a space station
Only when the information is of a routine, personal nature
Only with Special Temporary Authorization from the FCC

G1C09: What is the maximum symbol rate permitted for RTTY or data emission transmitted on the 1.25 meter and 70 centimeter bands?

56 kilobaud
19.6 kilobaud
1200 baud
300 baud

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

G2B09: Who may be the control operator of an amateur station transmitting in RACES to assist relief operations during a disaster?

Only a person holding an FCC issued amateur operator license
Only a RACES net control operator
A person holding an FCC issued amateur operator license or an appropriate government official
Any control operator when normal communication systems are operational

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

G2D06: How is a directional antenna pointed when making a 'long-path' contact with another station?

Toward the rising Sun
Along the gray line
180 degrees from its short-path heading
Toward the north

G2E03: What part of a data packet contains the routing and handling information?

Directory
Preamble
Header
Footer

G3A12: What does the K-index indicate?

The relative position of sunspots on the surface of the Sun
The short term stability of the Earth's magnetic field
The stability of the Sun's magnetic field
The solar radio flux at Boulder, Colorado

G3B03: Which of the following applies when selecting a frequency for lowest attenuation when transmitting on HF?

Select a frequency just below the MUF
Select a frequency just above the LUF
Select a frequency just below the critical frequency
Select a frequency just above the critical frequency

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

G4A10: What is the purpose of an electronic keyer?

Automatic transmit/receive switching
Automatic generation of strings of dots and dashes for CW operation
VOX operation
Computer interface for PSK and RTTY operation

G4B11: Which of the following must be connected to an antenna analyzer when it is being used for SWR measurements?

Receiver
Transmitter
Antenna and feed line
All of these choices are correct

G4C02: Which of the following could be a cause of interference covering a wide range of frequencies?

Not using a balun or line isolator to feed balanced antennas
Lack of rectification of the transmitter's signal in power conductors
Arcing at a poor electrical connection
The use of horizontal rather than vertical antennas

G4D01: What is the purpose of a speech processor as used in a modern transceiver?

Increase the intelligibility of transmitted phone signals during poor conditions
Increase transmitter bass response for more natural sounding SSB signals
Prevent distortion of voice signals
Decrease high-frequency voice output to prevent out of band operation

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

G5A04: Which of the following causes opposition to the flow of alternating current in a capacitor?

Conductance
Reluctance
Reactance
Admittance

G5B14: What is the output PEP from a transmitter if an oscilloscope measures 500 volts peak-to-peak across a 50-ohm resistor connected to the transmitter output?

8.75 watts
625 watts
2500 watts
5000 watts

G5C07: What is the turns ratio of a transformer used to match an audio amplifier having a 600-ohm output impedance to a speaker having a 4-ohm impedance?

12.2 to 1
24.4 to 1
150 to 1
300 to 1

G6A07: Which of the following is a reason not to use wire-wound resistors in an RF circuit?

The resistor's tolerance value would not be adequate for such a circuit
The resistor's inductance could make circuit performance unpredictable
The resistor could overheat
The resistor's internal capacitance would detune the circuit

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

G6C10: What two devices in an Amateur Radio station might be connected using a USB interface?

Computer and transceiver
Microphone and transceiver
Amplifier and antenna
Power supply and amplifier

G7A02: Which of the following components are used in a power-supply filter network?

Diodes
Transformers and transducers
Quartz crystals
Capacitors and inductors

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

G7C09: Which of the following is needed for a Digital Signal Processor IF filter?

An analog to digital converter
A digital to analog converter
A digital processor chip
All of the these choices are correct

G8A05: What type of modulation varies the instantaneous power level of the RF signal?

Frequency shift keying
Pulse position modulation
Frequency modulation
Amplitude modulation

G8B03: What is another term for the mixing of two RF signals?

Heterodyning
Synthesizing
Cancellation
Phase inverting

G9A13: What would be the SWR if you feed an antenna that has a 300-ohm feed-point impedance with 50-ohm coaxial cable?

1.5:1
3:1
6:1
You cannot determine SWR from impedance values

G9B04: What is the low angle azimuthal radiation pattern of an ideal half-wavelength dipole antenna installed 1/2 wavelength high and parallel to the Earth?

It is a figure-eight at right angles to the antenna
It is a figure-eight off both ends of the antenna
It is a circle (equal radiation in all directions)
It has a pair of lobes on one side of the antenna and a single lobe on the other side

G9C18: What happens when the feed point of a quad antenna is changed from the center of either horizontal wire to the center of either vertical wire?

The polarization of the radiated signal changes from horizontal to vertical
The polarization of the radiated signal changes from vertical to horizontal
The direction of the main lobe is reversed
The radiated signal changes to an omnidirectional pattern

G9D07: Which of the following describes a log periodic antenna?

Length and spacing of the elements increases logarithmically from one end of the boom to the other
Impedance varies periodically as a function of frequency
Gain varies logarithmically as a function of frequency
SWR varies periodically as a function of boom length