Ham General License Practice Quiz

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

G0A02: Which of the following properties is important in estimating whether an RF signal exceeds the maximum permissible exposure (MPE)?

Its duty cycle
Its frequency
Its power density
All of these choices are correct

G0B16: When might a lead acid storage battery give off explosive hydrogen gas?

When stored for long periods of time
When being discharged
When being charged
When not placed on a level surface

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

10 meters
12 meters
15 meters

G1B09: When may an amateur station transmit communications in which the licensee or control operator has a pecuniary (monetary) interest?

When other amateurs are being notified of the sale of apparatus normally used in an amateur station and such activity is not done on a regular basis
Only when there is no other means of communications readily available
When other amateurs are being notified of the sale of any item with a monetary value less than $200 and such activity is not done on a regular basis

G1C03: What is the maximum bandwidth permitted by FCC rules for Amateur Radio stations when transmitting on USB frequencies in the 60 meter band?

2.8 kHz
5.6 kHz
1.8 kHz
3 kHz

G1D10: What is the minimum age that one must be to qualify as an accredited Volunteer Examiner?

12 years
18 years
21 years
There is no age limit

G1E09: What language must you use when identifying your station if you are using a language other than English in making a contact using phone emission?

The language being used for the contact
Any language if the US has a third party agreement with that country
Any language of a country that is a member of the ITU

G2A06: Which of the following is an advantage when using single sideband as compared to other analog voice modes on the HF amateur bands?

Very high fidelity voice modulation
Less bandwidth used and higher power efficiency
Ease of tuning on receive and immunity to impulse noise
Less subject to static crashes (atmospherics)

G2B02: What is the first thing you should do if you are communicating with another amateur station and hear a station in distress break in?

Continue your communication because you were on frequency first
Acknowledge the station in distress and determine what assistance may be needed
Change to a different frequency
Immediately cease all transmissions

G2C02: What should you do if a CW station sends "QRS"?

Send slower
Change frequency
Increase your power
Repeat everything twice

G2D09: What information is traditionally contained in a station log?

Date and time of contact
Band and/or frequency of the contact
Call sign of station contacted and the signal report given
All of these choices are correct

G2E13: In the PACTOR protocol, what is meant by an NAK response to a transmitted packet?

The receiver is requesting the packet be re-transmitted
The receiver is reporting the packet was received without error
The receiver is busy decoding the packet
The entire file has been received correctly

G3A15: How long does it take charged particles from coronal mass ejections to affect radio-wave propagation on the Earth?

28 days
14 days
4 to 8 minutes
20 to 40 hours

G3B09: What is the approximate maximum distance along the Earth's surface that is normally covered in one hop using the F2 region?

180 miles
1,200 miles
2,500 miles
12,000 miles

G3C02: Where on the Earth do ionospheric layers reach their maximum height?

Where the Sun is overhead
Where the Sun is on the opposite side of the Earth
Where the Sun is rising
Where the Sun has just set

G4A12: Which of the following is a common use for the dual VFO feature on a transceiver?

To allow transmitting on two frequencies at once
To permit full duplex operation, that is transmitting and receiving at the same time
To permit ease of monitoring the transmit and receive frequencies when they are not the same
To facilitate computer interface

G4B07: Which of the following might be a use for a field strength meter?

Close-in radio direction-finding
A modulation monitor for a frequency or phase modulation transmitter
An overmodulation indicator for a SSB transmitter
A keying indicator for a RTTY or packet transmitter

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

G4E02: What is the purpose of a "corona ball" on a HF mobile antenna?

To narrow the operating bandwidth of the antenna
To increase the "Q" of the antenna
To reduce the chance of damage if the antenna should strike an object
To reduce high voltage discharge from the tip of the antenna

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

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

G5C01: What causes a voltage to appear across the secondary winding of a transformer when an AC voltage source is connected across its primary winding?

Capacitive coupling
Displacement current coupling
Mutual inductance
Mutual capacitance

G6A11: Why would it be important to minimize the mutual inductance between two inductors?

To increase the energy transfer between circuits
To reduce unwanted coupling between circuits
To reduce conducted emissions
To increase the self-resonant frequency of the inductors

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

G6C04: What is meant by the term ROM?

Resistor Operated Memory
Read Only Memory
Random Operational Memory
Resistant to Overload Memory

G7A05: What portion of the AC cycle is converted to DC by a half-wave rectifier?

90 degrees
180 degrees
270 degrees
360 degrees

G7B12: Which of these classes of amplifiers has the highest efficiency?

Class A
Class B
Class AB
Class C

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

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

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?

Reactance modulator
Pre-emphasis network

G9A02: What are the typical characteristic impedances of coaxial cables used for antenna feed lines at amateur stations?

25 and 30 ohms
50 and 75 ohms
80 and 100 ohms
500 and 750 ohms

G9B07: How does the feed-point impedance of a 1/2 wave dipole antenna change as the antenna is lowered from 1/4 wave above ground?

It steadily increases
It steadily decreases
It peaks at about 1/8 wavelength above ground
It is unaffected by the height above ground

G9C06: Which of the following is a reason why a Yagi antenna is often used for radio communications on the 20 meter band?

It provides excellent omnidirectional coverage in the horizontal plane
It is smaller, less expensive and easier to erect than a dipole or vertical antenna
It helps reduce interference from other stations to the side or behind the antenna
It provides the highest possible angle of radiation for the HF bands

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