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

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

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1. - G1A12

Which of the following applies when the FCC rules designate the Amateur Service as a secondary user on a band?

Select	Answer
A	Amateur stations are allowed to use the band only during emergencies
B	Amateur stations may only operate during specific hours of the day, while primary users are permitted 24 hour use of the band
C	Amateur stations are allowed to use the band only if they do not cause harmful interference to primary users
D	Amateur stations must record the call sign of the primary service station before operating on a frequency assigned to that station

2. - G1B03

Which of the following is a purpose of a beacon station as identified in the FCC rules?

Select	Answer
A	Automatic identification of repeaters
B	Transmission of bulletins of general interest to Amateur Radio licensees
C	Identifying net frequencies
D	Observation of propagation and reception

3. - G1C07

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

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

4. - G1D09

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

Select	Answer
A	For as long as your current license is valid
B	180 days
C	365 days
D	30 days

5. - G1E01

Which of the following would disqualify a third party from participating in stating a message over an amateur station?

Select	Answer
A	The third party is not a U.S. citizen
B	The third party's amateur license has been revoked and not reinstated
C	The third party is speaking in a language other than English
D	The third party is a licensed amateur

6. - G2A10

Which of the following statements is true of voice VOX operation versus PTT operation?

Select	Answer
A	It occupies less bandwidth
B	It allows "hands free" operation
C	It provides more power output
D	The received signal is more natural sounding

7. - G2B04

When selecting a CW transmitting frequency, what minimum separation should be used to minimize interference to stations on adjacent frequencies?

Select	Answer
A	5 to 50 Hz
B	3 to 6 kHz
C	1 to 3 kHz
D	150 to 500 Hz

8. - G2C02

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

Select	Answer
A	Send slower
B	Repeat everything twice
C	Increase your power
D	Change frequency

9. - G2D08

What is a reason why many amateurs keep a station log?

Select	Answer
A	To help with a reply if the FCC requests information
B	The log provides evidence of operation needed to renew a license without retest
C	The ITU requires a log of all international third party traffic
D	The ITU requires a log of all international contacts

10. - G2E14

What could be wrong if you cannot decode an RTTY or other FSK signal even though it is apparently tuned in properly?

Select	Answer
A	You may have selected the wrong baud rate
B	You may be listening on the wrong sideband
C	The mark and space frequencies may be reversed
D	All of these choices are correct

11. - G3A08

Which of the following effects can a geomagnetic storm have on radio propagation?

Select	Answer
A	Improved ground-wave propagation
B	Degraded high-latitude HF propagation
C	Improved chances of UHF ducting
D	Improved high-latitude HF propagation

12. - G3B11

What happens to HF propagation when the LUF exceeds the MUF?

Select	Answer
A	HF communications over the path are enhanced
B	No HF radio frequency will support ordinary sky-wave communications over the path
C	Propagation over the path on all HF frequencies is enhanced
D	Double hop propagation along the path is more common

13. - G3C08

Why are HF scatter signals in the skip zone usually weak?

Select	Answer
A	Propagation is through ground waves which absorb most of the signal energy
B	Propagations is through ducts in F region which absorb most of the energy
C	Signals are scattered from the magnetosphere which is not a good reflector
D	Only a small part of the signal energy is scattered into the skip zone

14. - G4A04

What reading on the plate current meter of a vacuum tube RF power amplifier indicates correct adjustment of the plate tuning control?

Select	Answer
A	A pronounced dip
B	A pronounced peak
C	A slow, rhythmic oscillation
D	No change will be observed

15. - G4B11

Which of the following must be connected to an antenna analyzer when it is being used for SWR measurements?

Select	Answer
A	All of these choices are correct
B	Antenna and feed line
C	Receiver
D	Transmitter

16. - G4C13

Which of the following can perform automatic notching of interfering carriers?

Select	Answer
A	Balanced mixing
B	A noise limiter
C	Bandpass tuning
D	A Digital Signal Processor (DSP) filter

17. - G4D02

Which of the following describes how a speech processor affects a transmitted single sideband phone signal?

Select	Answer
A	It increases peak power
B	It reduces harmonic distortion
C	It increases average power
D	It reduces intermodulation distortion

18. - G4E08

What is the name of the process by which sunlight is changed directly into electricity?

Select	Answer
A	Photon emission
B	Photovoltaic conversion
C	Photosynthesis
D	Photon decomposition

19. - G5A10

What unit is used to measure impedance?

Select	Answer
A	Ohm
B	Watt
C	Ampere
D	Volt

20. - G5B13

What is the output PEP of an unmodulated carrier if an average reading wattmeter connected to the transmitter output indicates 1060 watts?

Select	Answer
A	2120 watts
B	530 watts
C	1500 watts
D	1060 watts

21. - G5C15

What is the total resistance of a 10 ohm, a 20 ohm, and a 50 ohm resistor connected in parallel?

Select	Answer
A	10000 ohms
B	5.9 ohms
C	0.17 ohms
D	80 ohms

22. - G6A02

What is an advantage of the low internal resistance of nickel-cadmium batteries?

Select	Answer
A	High voltage
B	High discharge current
C	Long life
D	Rapid recharge

23. - G6B02

What is meant by the term MMIC?

Select	Answer
A	Monolithic Microwave Integrated Circuit
B	Multi Megabyte Integrated Circuit
C	Military Manufactured Integrated Circuit
D	Mode Modulated Integrated Circuit

24. - G7A12

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

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

25. - G7B10

Which of the following is a characteristic of a Class A amplifier?

Select	Answer
A	Low standby power
B	No need for bias
C	Low distortion
D	High Efficiency

26. - G7C02

Which circuit is used to combine signals from the carrier oscillator and speech amplifier then send the result to the filter in some single sideband phone transmitters?

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

27. - G8A04

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

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

28. - G8B07

What is the frequency deviation for a 12.21 MHz reactance modulated oscillator in a 5 kHz deviation, 146.52 MHz FM phone transmitter?

Select	Answer
A	60 kHz
B	101.75 Hz
C	416.7 Hz
D	5 kHz

29. - G8C01

Which of the following digital modes is designed to operate at extremely low signal strength on the HF bands?

Select	Answer
A	RTTY
B	Clover
C	JT9 and JT65
D	FSK441 and Hellschreiber

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	2:1
C	4:1
D	1:4

31. - G9B06

Where should the radial wires of a ground-mounted vertical antenna system be placed?

Select	Answer
A	Parallel to the antenna element
B	As high as possible above the ground
C	On the surface of the Earth or buried a few inches below the ground
D	At the center of the antenna

32. - G9C09

How does the gain of two 3-element horizontally polarized Yagi antennas spaced vertically 1/2 wavelength apart typically compare to the gain of a single 3-element Yagi?

Select	Answer
A	Approximately 6 dB higher
B	Approximately 9 dB higher
C	Approximately 1.5 dB higher
D	Approximately 3 dB higher

33. - G9D08

Why is a Beverage antenna not used for transmitting?

Select	Answer
A	It has poor directivity
B	Its impedance is too low for effective matching
C	It has high losses compared to other types of antennas
D	All of these choices are correct

34. - G0A12

What precaution should you take whenever you make adjustments or repairs to an antenna?

Select	Answer
A	Wear a radiation badge
B	Turn off the transmitter and disconnect the feed line
C	Ensure that you and the antenna structure are grounded
D	All of these choices are correct

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 neutral wire
C	Only the ground wire
D	All wires

Figure G7-1