Ham General License Practice Quiz

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

G0A09: What type of instrument can be used to accurately measure an RF field?

A receiver with an S meter
A calibrated field-strength meter with a calibrated antenna
A betascope with a dummy antenna calibrated at 50 ohms
An oscilloscope with a high-stability crystal marker generator

G0B03: Which size of fuse or circuit breaker would be appropriate to use with a circuit that uses AWG number 14 wiring?

100 amperes
60 amperes
30 amperes
15 amperes

G1A03: On which of the following bands is image transmission prohibited?

160 meters
30 meters
20 meters
12 meters

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

G1D09: How long is a Certificate of Successful Completion of Examination (CSCE) valid for exam element credit?

30 days
180 days
365 days
For as long as your current license is valid

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)

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

G2B05: What is the customary minimum frequency separation between SSB signals under normal conditions?

Between 150 and 500 Hz
Approximately 3 kHz
Approximately 6 kHz
Approximately 10 kHz

G2C03: What does it mean when a CW operator sends "KN" at the end of a transmission?

Listening for novice stations
Operating full break-in
Listening only for a specific station or stations
Closing station now

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

G2E12: How does the receiving station respond to an ARQ data mode packet containing errors?

Terminates the contact
Requests the packet be retransmitted
Sends the packet back to the transmitting station
Requests a change in transmitting protocol

G3A07: At what point in the solar cycle does the 20 meter band usually support worldwide propagation during daylight hours?

At the summer solstice
Only at the maximum point of the solar cycle
Only at the minimum point of the solar cycle
At any point in the solar cycle

G3B04: What is a reliable way to determine if the Maximum Usable Frequency (MUF) is high enough to support skip propagation between your station and a distant location on frequencies between 14 and 30 MHz?

Listen for signals from an international beacon
Send a series of dots on the band and listen for echoes from your signal
Check the strength of TV signals from Western Europe
Check the strength of signals in the MF AM broadcast band

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

G4A09: Why is a time delay sometimes included in a transmitter keying circuit?

To prevent stations from talking over each other
To allow the transmitter power regulators to charge properly
To allow time for transmit-receive changeover operations to complete properly before RF output is allowed
To allow time for a warning signal to be sent to other stations

G4B02: Which of the following is an advantage of an oscilloscope versus a digital voltmeter?

An oscilloscope uses less power
Complex impedances can be easily measured
Input impedance is much lower
Complex waveforms can be measured

G4C07: What is one good way to avoid unwanted effects of stray RF energy in an amateur station?

Connect all equipment grounds together
Install an RF filter in series with the ground wire
Use a ground loop for best conductivity
Install a few ferrite beads on the ground wire where it connects to your station

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

G5A06: How does a capacitor react to AC?

As the frequency of the applied AC increases, the reactance decreases
As the frequency of the applied AC increases, the reactance increases
As the amplitude of the applied AC increases, the reactance increases
As the amplitude of the applied AC increases, the reactance decreases

G5B02: How does the total current relate to the individual currents in each branch of a parallel circuit?

It equals the average of each branch current
It decreases as more parallel branches are added to the circuit
It equals the sum of the currents through each branch
It is the sum of the reciprocal of each individual voltage drop

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

G6A09: What is an advantage of using a ferrite core toroidal inductor?

Large values of inductance may be obtained
The magnetic properties of the core may be optimized for a specific range of frequencies
Most of the magnetic field is contained in the core
All of these choices are correct

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

G6C08: How is an LED biased when emitting light?

Beyond cutoff
At the Zener voltage
Reverse Biased
Forward Biased

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

G7B14: Which of the following describes a linear amplifier?

Any RF power amplifier used in conjunction with an amateur transceiver
An amplifier in which the output preserves the input waveform
A Class C high efficiency amplifier
An amplifier used as a frequency multiplier

G7C04: What circuit is used to combine signals from the IF amplifier and BFO and send the result to the AF amplifier in a single-sideband receiver?

RF oscillator
IF filter
Balanced modulator
Product detector

G8A03: What is the name of the process which changes the frequency of an RF wave to convey information?

Frequency convolution
Frequency transformation
Frequency conversion
Frequency modulation

G8B10: What does the number 31 represent in PSK31?

The approximate transmitted symbol rate
The version of the PSK protocol
The year in which PSK31 was invented
The number of characters that can be represented by PSK31

G9A05: How does the attenuation of coaxial cable change as the frequency of the signal it is carrying increases?

It is independent of frequency
It increases
It decreases
It reaches a maximum at approximately 18 MHz

G9B08: How does the feed-point impedance of a 1/2 wave dipole change as the feed-point location is moved from the center toward the ends?

It steadily increases
It steadily decreases
It peaks at about 1/8 wavelength from the end
It is unaffected by the location of the feed point

G9C01: Which of the following would increase the bandwidth of a Yagi antenna?

Larger diameter elements
Closer element spacing
Loading coils in series with the element
Tapered-diameter elements

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