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

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

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1. - T0A01

Which of the following is a safety hazard of a 12-volt storage battery?

Select	Answer
A	Touching both terminals with the hands can cause electrical shock
B	Shorting the terminals can cause burns, fire, or an explosion
C	RF emissions from a nearby transmitter can cause the electrolyte to emit poison gas
D	All these choices are correct

2. - T0B02

What is required when climbing an antenna tower?

Select	Answer
A	Always wear an approved climbing harness
B	All these choices are correct
C	Use appropriate tie-off to the tower at all times
D	Have sufficient training on safe tower climbing techniques

3. - T0C05

Why do exposure limits vary with frequency?

Select	Answer
A	The human body absorbs more RF energy at some frequencies than at others
B	Lower frequency RF fields have more energy than higher frequency fields
C	Higher frequency RF fields are transient in nature
D	Lower frequency RF fields do not penetrate the human body

4. - T1A07

What is the FCC Part 97 definition of a space station?

Select	Answer
A	An amateur station located more than 50 km above Earth's surface
B	Any satellite orbiting Earth
C	An amateur station using amateur radio satellites for relay of signals
D	A manned satellite orbiting Earth

5. - T1B06

On which HF bands does a Technician class operator have phone privileges?

Select	Answer
A	10 meter band only
B	80 meter, 40 meter, 15 meter, and 10 meter bands
C	None
D	30 meter band only

6. - T1C08

What is the normal term for an FCC-issued amateur radio license?

Select	Answer
A	Ten years
B	Eight years
C	Life
D	Five years

7. - T1D04

Under what conditions is an amateur station authorized to transmit music using a phone emission?

Select	Answer
A	When incidental to an authorized retransmission of manned spacecraft communications
B	When the music produces no spurious emissions
C	When transmissions are limited to less than three minutes per hour
D	When the music is transmitted above 1280 MHz

8. - T1E08

Which of the following is an example of automatic control?

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

9. - T1F02

How often must you identify with your FCC-assigned call sign when using tactical call signs such as “Race Headquarters”?

Select	Answer
A	At the end of each communication and every ten minutes during a communication
B	At the end of every transmission
C	Never, the tactical call is sufficient
D	Once during every hour

10. - T2A02

What is the national calling frequency for FM simplex operations in the 2 meter band?

Select	Answer
A	446.000 MHz
B	146.520 MHz
C	432.100 MHz
D	145.000 MHz

11. - T2B01

How is a VHF/UHF transceiver’s “reverse” function used?

Select	Answer
A	To reduce power output
B	To increase power output
C	To listen on a repeater’s output frequency
D	To listen on a repeater’s input frequency

12. - T2C07

Which of the following is standard practice when you participate in a net?

Select	Answer
A	Unless you are reporting an emergency, transmit only when directed by the net control station
B	When first responding to the net control station, transmit your call sign, name, and address as in the FCC database
C	Record the time of each of your transmissions
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	Either vertically or horizontally polarized antennas may be used for transmission or reception
B	FM voice is unusable
C	Digital modes are unusable
D	Both the transmitting and receiving antennas must be of the same polarization

14. - T3B08

What frequency range is referred to as VHF?

Select	Answer
A	300 kHz to 3000 kHz
B	30 kHz to 300 kHz
C	30 MHz to 300 MHz
D	300 MHz to 3000 MHz

15. - T3C02

What is a characteristic of HF communication compared with communications on VHF and higher frequencies?

Select	Answer
A	There is less atmospheric interference (static) on HF
B	Long-distance ionospheric propagation is far more common on HF
C	HF antennas are generally smaller
D	HF accommodates wider bandwidth signals

16. - T4A05

Where should an RF power meter be installed?

Select	Answer
A	In the power supply cable, as close as possible to the radio
B	In the feed line, between the transmitter and antenna
C	At the power supply output
D	In parallel with the push-to-talk line and the antenna

17. - T4B08

What is the advantage of having multiple receive bandwidth choices on a multimode transceiver?

Select	Answer
A	Permits noise or interference reduction by selecting a bandwidth matching the mode
B	Increases the amount of offset between receive and transmit frequencies
C	Increases the number of frequencies that can be stored in memory
D	Permits monitoring several modes at once by selecting a separate filter for each mode

18. - T5A08

Which of the following is a good electrical insulator?

Select	Answer
A	Glass
B	Aluminum
C	Mercury
D	Copper

19. - T5B05

Which is equal to 500 milliwatts?

Select	Answer
A	5 watts
B	0.02 watts
C	0.5 watts
D	50 watts

20. - T5C05

What is the unit of impedance?

Select	Answer
A	The volt
B	The ampere
C	The coulomb
D	The ohm

21. - T5D09

What is the current through a 24-ohm resistor connected across 240 volts?

Select	Answer
A	24,000 amperes
B	216 amperes
C	10 amperes
D	0.1 amperes

22. - T6A11

Which of the following battery chemistries is not rechargeable?

Select	Answer
A	Lithium-ion
B	Carbon-zinc
C	Nickel-cadmium
D	Lead-acid

23. - T6B10

Which of the following can provide power gain?

Select	Answer
A	Transistor
B	Transformer
C	Reactor
D	Resistor

24. - T6C11

What is component 4 in figure T-3?

Select	Answer
A	Ground
B	Antenna
C	Dummy load
D	Transmitter

25. - T6D02

What is a relay?

Select	Answer
A	An inverting amplifier
B	An electrically-controlled switch
C	A pass transistor
D	A current controlled amplifier

26. - T7A07

What is the function of a transceiver’s PTT input?

Select	Answer
A	Input for a key used to send CW
B	Provides a transmit tuning tone when grounded
C	Switches transceiver from receive to transmit when grounded
D	Input for a preamplifier tuning tone

27. - T7B06

Which of the following actions should you take if a neighbor tells you that your station’s transmissions are interfering with their radio or TV reception?

Select	Answer
A	Immediately turn off your transmitter and contact the nearest FCC office for assistance
B	All these choices are correct
C	Make sure that your station is functioning properly and that it does not cause interference to your own radio or television when it is tuned to the same channel
D	Install a harmonic doubler on the output of your transmitter and tune it until the interference is eliminated

28. - T7C08

Which instrument can be used to determine SWR?

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

29. - T7D02

How is a voltmeter connected to a component to measure applied voltage?

Select	Answer
A	In parallel
B	In series
C	In phase
D	In quadrature

30. - T8A02

What type of modulation is commonly used for VHF packet radio transmissions?

Select	Answer
A	PSK
B	FM or PM
C	SSB
D	AM

31. - T8B02

What is the impact of using excessive effective radiated power on a satellite uplink?

Select	Answer
A	Possibility of rebooting the satellite control computer
B	Blocking access by other users
C	Overloading the satellite batteries
D	Possibility of commanding the satellite to an improper mode

32. - T8C01

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

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

33. - T8D13

What is FT8?

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

34. - T9A01

What is a beam antenna?

Select	Answer
A	An antenna that reverses the phase of received signals
B	An omnidirectional antenna invented by Clarence Beam
C	An antenna that concentrates signals in one direction
D	An antenna built from aluminum I-beams

35. - T9B09

What can cause erratic changes in SWR?

Select	Answer
A	Overload from a strong local station
B	Loose connection in the antenna or feed line
C	Local thunderstorm
D	Over-modulation

Figure T-3