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

2. - G1B09

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

Select	Answer
A	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
B	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
C	Only when there is no other means of communications readily available
D	Never

3. - G1C08

What is the maximum symbol rate permitted for RTTY or data emission transmitted at frequencies below 28 MHz?

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

4. - G1D03

On which of the following band segments may you operate if you are a Technician Class operator and have a CSCE for General Class privileges?

Select	Answer
A	On any General or Technician Class band segment
B	Only on the Technician band segments until your license arrives in the mail
C	On any General or Technician Class band segment except 30-meters and 60-meters
D	Only the Technician band segments until your upgrade is posted in the FCC database

5. - G1E02

When may a 10-meter repeater retransmit the 2-meter signal from a station having a Technician Class control operator?

Select	Answer
A	Only during an FCC declared general state of communications emergency
B	Under no circumstances
C	Only if the station on 10-meters is operating under a Special Temporary Authorization allowing such retransmission
D	Only if the 10-meter repeater control operator holds at least a General Class license

6. - G2A04

Which mode is most commonly used for voice communications on the 17-meter and 12-meter bands?

Select	Answer
A	Vestigial sideband
B	Lower sideband
C	Double sideband
D	Upper sideband

7. - G2B11

What frequency should be used to send a distress call?

Select	Answer
A	Whichever frequency has the best chance of communicating the distress message
B	Only frequencies used by police, fire or emergency medical services
C	Only frequencies that are within your operating privileges
D	Only frequencies authorized for RACES or ARES stations

8. - G2C07

When sending CW, what does a "C" mean when added to the RST report?

Select	Answer
A	Chirpy or unstable signal
B	Key clicks
C	100 percent copy
D	Report was read from an S meter rather than estimated

9. - G2D03

What skills learned during hidden transmitter hunts are of help to the Amateur Auxiliary?

Select	Answer
A	Identification of different call signs
B	Identification of out of band operation
C	Hunters have an opportunity to transmit on non-amateur frequencies
D	Direction finding used to locate stations violating FCC Rules

10. - G2E04

What segment of the 20-meter band is most often used for digital transmissions?

Select	Answer
A	14.275 - 14.350 MHz
B	14.000 - 14.050 MHz
C	14.070 - 14.100 MHz
D	14.150 - 14.225 MHz

11. - G3A11

Approximately how long is the typical sunspot cycle?

Select	Answer
A	11 years
B	8 minutes
C	28 days
D	40 hours

12. - G3B02

Which of the following is a good indicator of the possibility of sky-wave propagation on the 6-meter band?

Select	Answer
A	Long skip sky-wave propagation on the 10-meter band
B	Long delayed echoes on the 10-meter band
C	Short skip sky-wave propagation on the 10-meter band
D	Severe attenuation of signals on the 10-meter band

13. - G3C03

Why is the F2 region mainly responsible for the longest distance radio wave propagation?

Select	Answer
A	Because it does not absorb radio waves as much as other ionospheric regions
B	Because it is the densest ionospheric layer
C	All of these choices are correct
D	Because it is the highest ionospheric region

14. - G4A13

What is one reason to use the attenuator function that is present on many HF transceivers?

Select	Answer
A	To reduce signal overload due to strong incoming signals
B	To reduce the transmitter power when driving a linear amplifier
C	To slow down received CW signals for better copy
D	To reduce power consumption when operating from batteries

15. - G4B04

What signal source is connected to the vertical input of an oscilloscope when checking the RF envelope pattern of a transmitted signal?

Select	Answer
A	The attenuated RF output of the transmitter
B	An external RF oscillator
C	The local oscillator of the transmitter
D	The transmitter balanced mixer output

16. - G4C03

What sound is heard from an audio device or telephone if there is interference from a nearby single sideband phone transmitter?

Select	Answer
A	Distorted speech
B	Clearly audible speech
C	A steady hum whenever the transmitter is on the air
D	On-and-off humming or clicking

17. - G4D01

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

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

18. - G4E11

Which of the following is a disadvantage of using wind as the primary source of power for an emergency station?

Select	Answer
A	All of these choices are correct
B	The voltage and current ratings of such systems are not compatible with amateur equipment
C	A large energy storage system is needed to supply power when the wind is not blowing
D	The conversion efficiency from mechanical energy to electrical energy is less than 2 percent

19. - G5A05

How does an inductor react to AC?

Select	Answer
A	As the amplitude of the applied AC increases, the reactance decreases
B	As the frequency of the applied AC increases, the reactance decreases
C	As the amplitude of the applied AC increases, the reactance increases
D	As the frequency of the applied AC increases, the reactance increases

20. - G5B04

How many watts of electrical power are used by a 12 VDC light bulb that draws 0.2 amperes?

Select	Answer
A	24 watts
B	2.4 watts
C	6 watts
D	60 watts

21. - G5C04

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

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

22. - G6A04

When is it acceptable to recharge a carbon-zinc primary cell?

Select	Answer
A	When the cell is kept warm during the recharging period
B	As long as the voltage has not been allowed to drop below 1.0 volt
C	When a constant current charger is used
D	Never

23. - G6B07

Which of the following is an advantage of an LED indicator compared to an incandescent indicator?

Select	Answer
A	Lower power consumption
B	All of these choices are correct
C	Faster response time
D	Longer life

24. - G7A12

Which symbol in Figure G7-1 represents a multiple-winding transformer?

Select	Answer
A	Symbol 6
B	Symbol 7
C	Symbol 1
D	Symbol 4

25. - G7B04

Which of the following describes the function of a two input NOR gate?

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

26. - G7C06

What should be the impedance of a low-pass filter as compared to the impedance of the transmission line into which it is inserted?

Select	Answer
A	Substantially lower
B	About the same
C	Twice the transmission line impedance
D	Substantially higher

27. - G8A08

Which of the following is an effect of overmodulation?

Select	Answer
A	Frequency drift
B	Excessive bandwidth
C	Insufficient bandwidth
D	Insufficient audio

28. - G8B09

Why is it good to match receiver bandwidth to the bandwidth of the operating mode?

Select	Answer
A	It improves impedance matching of the antenna
B	It is required by FCC rules
C	It minimizes power consumption in the receiver
D	It results in the best signal to noise ratio

29. - G8C04

Which of the following describes Baudot code?

Select	Answer
A	A 7-bit code with start, stop and parity bits
B	A 5-bit code with additional start and stop bits
C	A code using SELCAL and LISTEN
D	A code using error detection and correction

30. - G9A12

What standing wave ratio will result when connecting a 50 ohm feed line to a non-reactive load having 25 ohm impedance?

Select	Answer
A	2.5:1
B	2:1
C	You cannot determine SWR from impedance values
D	1.25:1

31. - G9B03

What happens to the feed point impedance of a ground plane antenna when its radials are changed from horizontal to sloping downward?

Select	Answer
A	It reaches a maximum at an angle of 45 degrees
B	It stays the same
C	It decreases
D	It increases

32. - G9C04

Which statement about a three-element, single-band Yagi antenna is true?

Select	Answer
A	The reflector is normally the longest element
B	All of the elements must be the same length
C	The reflector is normally the shortest element
D	The director is normally the longest element

33. - G9D04

What is the primary purpose of antenna traps?

Select	Answer
A	To prevent out of band operation
B	To provide balanced feed point impedance
C	To permit multiband operation
D	To notch spurious frequencies

34. - G0A01

What is one way that RF energy can affect human body tissue?

Select	Answer
A	It cools body tissue
B	It causes the blood count to reach a dangerously low level
C	It heats body tissue
D	It causes radiation poisoning

35. - G0B01

Which wire or wires in a four-conductor connection should be attached to fuses or circuit breakers in a device operated from a 240 VAC single phase source?

Select	Answer
A	Only the two wires carrying voltage
B	Only the ground wire
C	All wires
D	Only the neutral wire

Figure G7-1