General Practice Exam -- Effective July 2011

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G1E08
Which of the following is a requirement for a non-licensed person to communicate with a foreign Amateur Radio station from a station with an FCC granted license at which a licensed control operator is present?
A. Information must be exchanged in English
B. The foreign amateur station must be in a country with which the United States has a third party agreement
C. The control operator must have at least a General Class license
D. All of these choices are correct

G7A09
Which symbol in figure G7-1 represents a field effect transistor?
A. Symbol 2
B. Symbol 5
C. Symbol 1
D. Symbol 4

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?
A. Capacitive coupling
B. Displacement current coupling
C. Mutual inductance
D. Mutual capacitance

G6C07
What is one disadvantage of an incandescent indicator compared to an LED?
A. Low power consumption
B. High speed
C. Long life
D. High power consumption

G4E02
What is the purpose of a "corona ball" on a HF mobile antenna?
A. To narrow the operating bandwidth of the antenna
B. To increase the "Q" of the antenna
C. To reduce the chance of damage if the antenna should strike an object
D. To reduce high voltage discharge from the tip of the antenna

G9D01
What does the term "NVIS" mean as related to antennas?
A. Nearly Vertical Inductance System
B. Non-Visible Installation Specification
C. Non-Varying Impedance Smoothing
D. Near Vertical Incidence Sky wave

G9C03
Which statement about a three-element, single-band Yagi antenna is true?
A. The reflector is normally the shortest parasitic element
B. The director is normally the shortest parasitic element
C. The driven element is the longest parasitic element
D. Low feed-point impedance increases bandwidth

G7C09
Which of the following is needed for a Digital Signal Processor IF filter?
A. An analog to digital converter
B. A digital to analog converter
C. A digital processor chip
D. All of the these choices are correct

G1C01
What is the maximum transmitting power an amateur station may use on 10.140 MHz?
A. 200 watts PEP output
B. 1000 watts PEP output
C. 1500 watts PEP output
D. 2000 watts PEP output

G2D02
Which of the following are objectives of the Amateur Auxiliary?
A. To conduct efficient and orderly amateur licensing examinations
B. To encourage amateur self regulation and compliance with the rules
C. To coordinate repeaters for efficient and orderly spectrum usage
D. To provide emergency and public safety communications

G9A10
What standing wave ratio will result from the connection of a 50-ohm feed line to a non-reactive load having a 10-ohm impedance?
A. 2:1
B. 50:1
C. 1:5
D. 5:1

G6B05
What is the approximate junction threshold voltage of a conventional silicon diode?
A. 0.1 volt
B. 0.3 volts
C. 0.7 volts
D. 1.0 volts

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?
A. Only the hot wires
B. Only the neutral wire
C. Only the ground wire
D. All wires

G8A01
What is the name of the process that changes the envelope of an RF wave to carry information?
A. Phase modulation
B. Frequency modulation
C. Spread spectrum modulation
D. Amplitude modulation

G2A10
Which of the following statements is true of SSB VOX operation?
A. The received signal is more natural sounding
B. VOX allows "hands free" operation
C. Frequency spectrum is conserved
D. Provides more power output

G3B11
What happens to HF propagation when the Lowest Usable Frequency (LUF) exceeds the Maximum Usable Frequency (MUF)?
A. No HF radio frequency will support ordinary skywave communications over the path
B. HF communications over the path are enhanced
C. Double hop propagation along the path is more common
D. Propagation over the path on all HF frequencies is enhanced

G1D06
When must you add the special identifier "AG" after your call sign if you are a Technician Class licensee and have a CSCE for General Class operator privileges, but the FCC has not yet posted your upgrade on its Web site?
A. Whenever you operate using General Class frequency privileges
B. Whenever you operate on any amateur frequency
C. Whenever you operate using Technician frequency privileges
D. A special identifier is not required as long as your General Class license application has been filed with the FCC

G3C11
Which of the following antenna types will be most effective for skip communications on 40 meters during the day?
A. Vertical antennas
B. Horizontal dipoles placed between 1/8 and 1/4 wavelength above the ground
C. Left-hand circularly polarized antennas
D. Right-hand circularly polarized antenna

G4C04
What is the effect on an audio device or telephone system if there is interference from a nearby CW transmitter?
A. On-and-off humming or clicking
B. A CW signal at a nearly pure audio frequency
C. A chirpy CW signal
D. Severely distorted audio

G0A10
What is one thing that can be done if evaluation shows that a neighbor might receive more than the allowable limit of RF exposure from the main lobe of a directional antenna?
A. Change from horizontal polarization to vertical polarization
B. Change from horizontal polarization to circular polarization
C. Use an antenna with a higher front-to-back ratio
D. Take precautions to ensure that the antenna cannot be pointed in their direction

G5B09
What is the RMS voltage of a sine wave with a value of 17 volts peak?
A. 8.5 volts
B. 12 volts
C. 24 volts
D. 34 volts

G2C08
What prosign is sent to indicate the end of a formal message when using CW?
A. SK
B. BK
C. AR
D. KN

G6A12
What is a common name for an inductor used to help smooth the DC output from the rectifier in a conventional power supply?
A. Back EMF choke
B. Repulsion coil
C. Charging inductor
D. Filter choke

G3A12
What does the K-index indicate?
A. The relative position of sunspots on the surface of the Sun
B. The short term stability of the Earth’s magnetic field
C. The stability of the Sun's magnetic field
D. The solar radio flux at Boulder, Colorado

G2B11
What frequency should be used to send a distress call?
A. Whatever frequency has the best chance of communicating the distress message
B. Only frequencies authorized for RACES or ARES stations
C. Only frequencies that are within your operating privileges
D. Only frequencies used by police, fire or emergency medical services

G2E02
How many data bits are sent in a single PSK31 character?
A. The number varies
B. 5
C. 7
D. 8

G1A04
Which of the following amateur bands is restricted to communication on only specific channels, rather than frequency ranges?
A. 11 meters
B. 12 meters
C. 30 meters
D. 60 meters

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?
A. Mixer
B. Reactance modulator
C. Pre-emphasis network
D. Multiplier

G1B07
What are the restrictions on the use of abbreviations or procedural signals in the Amateur Service?
A. Only "Q" codes are permitted
B. They may be used if they do not obscure the meaning of a message
C. They are not permitted
D. Only "10 codes" are permitted

G4B06
What is an advantage of a digital voltmeter as compared to an analog voltmeter?
A. Better for measuring computer circuits
B. Better for RF measurements
C. Better precision for most uses
D. Faster response

G4A02
What is one advantage of selecting the opposite or "reverse" sideband when receiving CW signals on a typical HF transceiver?
A. Interference from impulse noise will be eliminated
B. More stations can be accommodated within a given signal passband
C. It may be possible to reduce or eliminate interference from other signals
D. Accidental out of band operation can be prevented

G7B12
Which of these classes of amplifiers has the highest efficiency?
A. Class A
B. Class B
C. Class AB
D. Class C

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?
A. Approximately 1.5 times
B. Approximately 2 times
C. Approximately 4 times
D. Approximately 8 times

G9B12
What is the approximate length for a 1/4-wave vertical antenna cut for 28.5 MHz?
A. 8 feet
B. 11 feet
C. 16 feet
D. 21 feet

G5A11
Which of the following describes one method of impedance matching between two AC circuits?
A. Insert an LC network between the two circuits
B. Reduce the power output of the first circuit
C. Increase the power output of the first circuit
D. Insert a circulator between the two circuits