US Amateur Radio - Technician (Element 2, 2022-2026) Practice Test

Anonymous User

US Amateur Radio - Technician (Element 2, 2022-2026) Practice Test

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

1. - T0A12

Which of the following precautions should be taken when measuring high voltages with a voltmeter?

Select	Answer
A	Ensure that the voltmeter is set to the correct frequency
B	Ensure that the voltmeter and leads are rated for use at the voltages to be measured
C	Ensure that the circuit is grounded through the voltmeter
D	Ensure that the voltmeter has very low impedance

2. - T0B07

Which of the following is an important safety rule to remember when using a crank-up tower?

Select	Answer
A	This type of tower must never be painted
B	This type of tower must never be grounded
C	All these choices are correct
D	This type of tower must not be climbed unless it is retracted, or mechanical safety locking devices have been installed

3. - T0C09

How can you make sure your station stays in compliance with RF safety regulations?

Select	Answer
A	By making sure your antennas have low SWR
B	By informing the FCC of any changes made in your station
C	All these choices are correct
D	By re-evaluating the station whenever an item in the transmitter or antenna system is changed

4. - T1A03

What do the FCC rules state regarding the use of a phonetic alphabet for station identification in the Amateur Radio Service?

Select	Answer
A	It is required when transmitting emergency messages
B	All these choices are correct
C	It is encouraged
D	It is required when in contact with foreign stations

5. - T1B09

Why should you not set your transmit frequency to be exactly at the edge of an amateur band or sub-band?

Select	Answer
A	All these choices are correct
B	So that modulation sidebands do not extend beyond the band edge
C	To allow for calibration error in the transmitter frequency display
D	To allow for transmitter frequency drift

6. - T1C01

For which license classes are new licenses currently available from the FCC?

Select	Answer
A	Technician, Technician Plus, General, Amateur Extra
B	Novice, Technician Plus, General, Advanced
C	Technician, General, Amateur Extra
D	Novice, Technician, General, Amateur Extra

7. - T1D09

When may amateur stations transmit information in support of broadcasting, program production, or news gathering, assuming no other means is available?

Select	Answer
A	When broadcasting communications to or from the space shuttle
B	Never
C	When such communications are directly related to the immediate safety of human life or protection of property
D	Where noncommercial programming is gathered and supplied exclusively to the National Public Radio network

8. - T1E08

Which of the following is an example of automatic control?

Select	Answer
A	Repeater operation
B	Using a computer or other device to send CW automatically
C	Controlling a station over the internet
D	Using a computer or other device to identify automatically

9. - T1F05

What method of call sign identification is required for a station transmitting phone signals?

Select	Answer
A	Send the call sign followed by the indicator R
B	Send the call sign using only a phone emission
C	Send the call sign followed by the indicator RPT
D	Send the call sign using a CW or phone emission

10. - T2A07

What is meant by "repeater offset”?

Select	Answer
A	The repeater station identification is done on a separate frequency
B	The number of simultaneous transmit frequencies used by a repeater
C	The repeater has a time delay to prevent interference
D	The difference between a repeater’s transmit and receive frequencies

11. - T2B05

What would cause your FM transmission audio to be distorted on voice peaks?

Select	Answer
A	Your transmit power is too high
B	You are talking too loudly
C	You need to talk louder
D	Your repeater offset is inverted

12. - T2C03

What technique is used to ensure that voice messages containing unusual words are received correctly?

Select	Answer
A	Speak very loudly into the microphone
B	Send the words by voice and Morse code
C	Spell the words using a standard phonetic alphabet
D	All these choices are correct

13. - T3A09

Which of the following results from the fact that signals propagated by the ionosphere are elliptically polarized?

Select	Answer
A	Digital modes are unusable
B	Both the transmitting and receiving antennas must be of the same polarization
C	Either vertically or horizontally polarized antennas may be used for transmission or reception
D	FM voice is unusable

14. - T3B04

What is the velocity of a radio wave traveling through free space?

Select	Answer
A	Speed of light
B	Speed that increases as the frequency increases
C	Speed inversely proportional to its wavelength
D	Speed of sound

15. - T3C08

What causes tropospheric ducting?

Select	Answer
A	Temperature inversions in the atmosphere
B	Updrafts from hurricanes and tornadoes
C	Discharges of lightning during electrical storms
D	Sunspots and solar flares

16. - T4A10

What function is performed with a transceiver and a digital mode hot spot?

Select	Answer
A	High-speed digital communications for meteor scatter
B	RTTY encoding and decoding without a computer
C	Communication using digital voice or data systems via the internet
D	FT8 digital communications via AFSK

17. - T4B07

What does a DMR “code plug” contain?

Select	Answer
A	Your call sign in CW for automatic identification
B	The codec for digitizing audio
C	Access information for repeaters and talkgroups
D	The DMR software version

18. - T5A04

What are the units of electrical resistance?

Select	Answer
A	Siemens
B	Mhos
C	Coulombs
D	Ohms

19. - T5B02

Which is equal to 1,500,000 hertz?

Select	Answer
A	15 GHz
B	1500 kHz
C	1500 MHz
D	150 kHz

20. - T5C12

What is impedance?

Select	Answer
A	The opposition to AC current flow
B	The power handling capability of a component
C	The inverse of resistance
D	The Q or Quality Factor of a component

21. - T5D03

What formula is used to calculate resistance in a circuit?

Select	Answer
A	R = E x I
B	R = E / I
C	R = E + I
D	R = E - I

22. - T6A07

What electrical component is typically constructed as a coil of wire?

Select	Answer
A	Capacitor
B	Switch
C	Inductor
D	Diode

23. - T6B08

What does the abbreviation FET stand for?

Select	Answer
A	Fast Electron Transistor
B	Frequency Emission Transmitter
C	Field Effect Transistor
D	Free Electron Transmitter

24. - T6C05

What is component 4 in figure T-1?

Select	Answer
A	Battery
B	Transistor
C	Resistor
D	Ground symbol

25. - T6D07

Which of the following is commonly used as a visual indicator?

Select	Answer
A	Zener diode
B	FET
C	LED
D	Bipolar transistor

26. - T7A01

Which term describes the ability of a receiver to detect the presence of a signal?

Select	Answer
A	Sensitivity
B	Selectivity
C	Total Harmonic Distortion
D	Linearity

27. - T7B03

Which of the following can cause radio frequency interference?

Select	Answer
A	Fundamental overload
B	All these choices are correct
C	Harmonics
D	Spurious emissions

28. - T7C08

Which instrument can be used to determine SWR?

Select	Answer
A	Iambic pentameter
B	Voltmeter
C	Ohmmeter
D	Directional wattmeter

29. - T7D04

Which instrument is used to measure electric current?

Select	Answer
A	An electrometer
B	An ammeter
C	A voltmeter
D	An ohmmeter

30. - T8A05

Which of the following types of signal has the narrowest bandwidth?

Select	Answer
A	FM voice
B	Slow-scan TV
C	CW
D	SSB voice

31. - T8B10

What is a LEO satellite?

Select	Answer
A	A highly elliptical orbit satellite
B	A satellite in low earth orbit
C	A satellite in low energy operation mode
D	A sun synchronous satellite

32. - T8C01

Which of the following methods is used to locate sources of noise interference or jamming?

Select	Answer
A	Doppler radar
B	Echolocation
C	Radio direction finding
D	Phase locking

33. - T8D13

What is FT8?

Select	Answer
A	A digital mode capable of low signal-to-noise operation
B	A digital slow-scan TV mode with forward error correction and automatic color compensation
C	A wideband FM voice mode
D	An eight channel multiplex mode for FM repeaters

34. - T9A04

What is a disadvantage of the short, flexible antenna supplied with most handheld radio transceivers, compared to a full-sized quarter-wave antenna?

Select	Answer
A	All these choices are correct
B	It is mechanically fragile
C	It has low efficiency
D	It transmits only circularly polarized signals

35. - T9B02

What is the most common impedance of coaxial cables used in amateur radio?

Select	Answer
A	600 ohms
B	50 ohms
C	12 ohms
D	8 ohms

Figure T-1