US Amateur Radio - General (Element 3, 2015-2019) Practice Test

Anonymous User

US Amateur Radio - General (Element 3, 2015-2019) Practice Test

Logging in (or registering) will help the system to select questions that you need to focus on.

1. - G1A13

What is the appropriate action if, when operating on either the 30-meter or 60-meter bands, a station in the primary service interferes with your contact?

Select	Answer
A	Increase your transmitter's power to overcome the interference
B	Notify the FCCs regional Engineer in Charge of the interference
C	Attempt to contact the station and request that it stop the interference
D	Move to a clear frequency or stop transmitting

2. - G1B06

When is an amateur station permitted to transmit secret codes?

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

3. - G1C07

What is the maximum symbol rate permitted for RTTY or data emission transmission on the 20-meter band?

Select	Answer
A	56 kilobaud
B	300 baud
C	1200 baud
D	19.6 kilobaud

4. - G1D05

Which of the following must a person have before they can be an administering VE for a Technician Class license examination?

Select	Answer
A	Notification to the FCC that you want to give an examination
B	An FCC General Class or higher license and VEC accreditation
C	Possession of a properly obtained telegraphy license
D	Receipt of a CSCE for General Class

5. - G1E09

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

Select	Answer
A	The language being used for the contact
B	English only
C	Any language recognized by the United Nations
D	English, Spanish, French, or German

6. - G2A11

What does the expression "CQ DX" usually indicate?

Select	Answer
A	The caller is listening for a station in Germany
B	A distress call
C	A general call for any station
D	The caller is looking for any station outside their own country

7. - G2B06

What is a practical way to avoid harmful interference on an apparently clear frequency before calling CQ on CW or phone?

Select	Answer
A	Send "QRL?" on CW, followed by your call sign; or, if using phone, ask if the frequency is in use, followed by your call sign
B	Send "QSY" on CW or if using phone, announce "the frequency is in use", then give your call and listen for a response
C	Send the letter "V" in Morse code several times and listen for a response or say "test" several times and listen for a response
D	Listen for 2 minutes before calling CQ

8. - G2C03

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

Select	Answer
A	Operating full break-in
B	Listening only for a specific station or stations
C	Closing station now
D	Listening for novice stations

9. - G2D10

What is QRP operation?

Select	Answer
A	Low power transmit operation
B	Transmission using Quick Response Protocol
C	Traffic relay procedure net operation
D	Remote piloted model control

10. - G2E09

How do you join a contact between two stations using the PACTOR protocol?

Select	Answer
A	Send a NAK response continuously so that the sending station has to pause
B	Joining an existing contact is not possible, PACTOR connections are limited to two stations
C	Send broadcast packets containing your call sign while in MONITOR mode
D	Transmit a steady carrier until the PACTOR protocol times out and disconnects

11. - G3A16

What is a possible benefit to radio communications resulting from periods of high geomagnetic activity?

Select	Answer
A	Improved HF long path propagation
B	Higher signal strength for HF signals passing through the polar regions
C	Auroras that can reflect VHF signals
D	Reduced long delayed echoes

12. - G3B10

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

Select	Answer
A	12,000 miles
B	2,500 miles
C	1,200 miles
D	180 miles

13. - G3C05

Why is long distance communication on the 40-meter, 60-meter, 80-meter and 160-meter bands more difficult during the day?

Select	Answer
A	The F layer absorbs signals at these frequencies during daylight hours
B	The D layer absorbs signals at these frequencies during daylight hours
C	The F layer is unstable during daylight hours
D	The E layer is unstable during daylight hours

14. - G4A08

What is the correct adjustment for the load or coupling control of a vacuum tube RF power amplifier?

Select	Answer
A	Minimum plate current without exceeding maximum allowable grid current
B	Highest plate voltage while minimizing grid current
C	Minimum SWR on the antenna
D	Maximum power output without exceeding maximum allowable plate current

15. - G4B06

What is an advantage of a digital voltmeter as compared to an analog voltmeter?

Select	Answer
A	Better for RF measurements
B	Faster response
C	Better precision for most uses
D	Better for measuring computer circuits

16. - G4C07

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

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

17. - G4D09

What frequency range is occupied by a 3 kHz USB signal with the displayed carrier frequency set to 14.347 MHz?

Select	Answer
A	14.347 to 14.647 MHz
B	14.344 to 14.347 MHz
C	14.347 to 14.350 MHz
D	14.3455 to 14.3485 MHz

18. - G4E01

What is the purpose of a capacitance hat on a mobile antenna?

Select	Answer
A	To electrically lengthen a physically short antenna
B	To allow remote tuning
C	To increase the power handling capacity of a whip antenna
D	To allow automatic band changing

19. - G5A01

What is impedance?

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

20. - G5B02

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

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

21. - G5C04

What is the total resistance of three 100 ohm resistors in parallel?

Select	Answer
A	0.33 ohms
B	300 ohms
C	0.30 ohms
D	33.3 ohms

22. - G6A09

Which of the following describes the construction of a MOSFET?

Select	Answer
A	The gate is formed by a back-biased junction
B	The source is separated from the drain by a thin insulating layer
C	The source is formed by depositing metal on silicon
D	The gate is separated from the channel with a thin insulating layer

23. - G6B12

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

Select	Answer
A	Type N
B	PL-259
C	Type SMA
D	DE-9

24. - G7A02

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

Select	Answer
A	Diodes
B	Quartz crystals
C	Capacitors and inductors
D	Transformers and transducers

25. - G7B03

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

Select	Answer
A	Output is low only when both inputs are high
B	Output is high when either or both inputs are low
C	Output is high only when both inputs are high
D	Output is low when either or both inputs are high

26. - G7C03

What circuit is used to process signals from the RF amplifier and local oscillator then send the result to the IF filter in a superheterodyne receiver?

Select	Answer
A	Mixer
B	Detector
C	IF amplifier
D	Balanced modulator

27. - G8A04

What emission is produced by a reactance modulator connected to a transmitter RF amplifier stage?

Select	Answer
A	Phase modulation
B	Amplitude modulation
C	Multiplex modulation
D	Pulse modulation

28. - G8B02

If a receiver mixes a 13.800 MHz VFO with a 14.255 MHz received signal to produce a 455 kHz intermediate frequency (IF) signal, what type of interference will a 13.345 MHz signal produce in the receiver?

Select	Answer
A	Intermediate interference
B	Mixer interference
C	Image response
D	Quadrature noise

29. - G8C06

What action results from a failure to exchange information due to excessive transmission attempts when using PACTOR or WINMOR?

Select	Answer
A	Packets will be routed incorrectly
B	Encoding reverts to the default character set
C	The connection is dropped
D	The checksum overflows

30. - G9A09

What standing wave ratio will result when connecting a 50 ohm feed line to a non-reactive load having 200 ohm impedance?

Select	Answer
A	1:2
B	1:4
C	4:1
D	2:1

31. - G9B12

What is the approximate length for a 1/4 wave vertical antenna cut for 28.5 MHz?

Select	Answer
A	8 feet
B	21 feet
C	16 feet
D	11 feet

32. - G9C01

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

Select	Answer
A	Loading coils in series with the element
B	Closer element spacing
C	Larger diameter elements
D	Tapered-diameter elements

33. - G9D01

What does the term NVIS mean as related to antennas?

Select	Answer
A	Near Vertical Incidence sky-wave
B	Non-Varying Impedance Smoothing
C	Nearly Vertical Inductance System
D	Non-Varying Indicated SWR

34. - G0A08

Which of the following steps must an amateur operator take to ensure compliance with RF safety regulations when transmitter power exceeds levels specified in FCC Part 97.13?

Select	Answer
A	All of these choices are correct
B	Perform a routine RF exposure evaluation
C	Post a copy of FCC Part 97.13 in the station
D	Post a copy of OET Bulletin 65 in the station

35. - G0B13

What must you do when powering your house from an emergency generator?

Select	Answer
A	All of these choices are correct
B	Insure that the generator is not grounded
C	Disconnect the incoming utility power feed
D	Insure that all lightning grounds are disconnected