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	All these choices are correct
D	RF emissions from a nearby transmitter can cause the electrolyte to emit poison gas

2. - T0B09

Why should you avoid attaching an antenna to a utility pole?

Select	Answer
A	The antenna could contact high-voltage power lines
B	The 60 Hz radiations from the feed line may increase the SWR
C	The antenna will not work properly because of induced voltages
D	All these choices are correct

3. - T0C12

How does RF radiation differ from ionizing radiation (radioactivity)?

Select	Answer
A	RF radiation can only be detected with an RF dosimeter
B	RF radiation is perfectly safe
C	RF radiation does not have sufficient energy to cause chemical changes in cells and damage DNA
D	RF radiation is limited in range to a few feet

4. - T1A11

When is willful interference to other amateur radio stations permitted?

Select	Answer
A	When making short test transmissions
B	At no time
C	To stop another amateur station that is breaking the FCC rules
D	At any time, stations in the Amateur Radio Service are not protected from willful interference

5. - T1B10

Where may SSB phone be used in amateur bands above 50 MHz?

Select	Answer
A	Only on repeaters
B	Only in sub-bands allocated to General class or higher licensees
C	On any band if the power is limited to 25 watts
D	In at least some segment of all these bands

6. - T1C10

How soon after passing the examination for your first amateur radio license may you transmit on the amateur radio bands?

Select	Answer
A	As soon as your operator/station license grant appears in the FCC’s license database
B	As soon as you receive your license in the mail from the FCC
C	As soon as your operator/station license grant appears on the ARRL website
D	Immediately on receiving your Certificate of Successful Completion of Examination (CSCE)

7. - T1D08

In which of the following circumstances may the control operator of an amateur station receive compensation for operating that station?

Select	Answer
A	When the communication is incidental to classroom instruction at an educational institution
B	When the communication is related to the sale of amateur equipment by the control operator's employer
C	All these choices are correct
D	When the communication is made to obtain emergency information for a local broadcast station

8. - T1E07

When the control operator is not the station licensee, who is responsible for the proper operation of the station?

Select	Answer
A	Only the control operator
B	All licensed amateurs who are present at the operation
C	Only the station licensee
D	The control operator and the station licensee

9. - T1F06

Which of the following self-assigned indicators are acceptable when using a phone transmission?

Select	Answer
A	KL7CC slant W3
B	All these choices are correct
C	KL7CC slash W3
D	KL7CC stroke W3

10. - T2A09

Which of the following indicates that a station is listening on a repeater and looking for a contact?

Select	Answer
A	“CQ CQ” followed by the repeater’s call sign
B	The repeater call sign followed by the station’s call sign
C	“QSY” followed by your call sign
D	The station’s call sign followed by the word “monitoring”

11. - T2B13

What is the purpose of a squelch function?

Select	Answer
A	Eliminate parasitic oscillations in an RF amplifier
B	Reduce a CW transmitter's key clicks
C	Reduce interference from impulse noise
D	Mute the receiver audio when a signal is not present

12. - T2C04

What is RACES?

Select	Answer
A	A radio contest held in a short period, sometimes called a “sprint”
B	An FCC part 97 amateur radio service for civil defense communications during national emergencies
C	An international radio experimentation society
D	An emergency organization combining amateur radio and citizens band operators and frequencies

13. - T3A04

What happens when antennas at opposite ends of a VHF or UHF line of sight radio link are not using the same polarization?

Select	Answer
A	Signals have an echo effect
B	Nothing significant will happen
C	The modulation sidebands might become inverted
D	Received signal strength is reduced

14. - T3B08

What frequency range is referred to as VHF?

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

15. - T3C04

Which of the following types of propagation is most commonly associated with occasional strong signals on the 10, 6, and 2 meter bands from beyond the radio horizon?

Select	Answer
A	Sporadic E
B	Backscatter
C	Gray-line propagation
D	D region absorption

16. - T4A06

What signals are used in a computer-radio interface for digital mode operation?

Select	Answer
A	Receive audio, transmit audio, and transmitter keying
B	NMEA GPS location and DC power
C	Receive and transmit mode, status, and location
D	Antenna and RF power

17. - T4B06

Which of the following controls could be used if the voice pitch of a single-sideband signal returning to your CQ call seems too high or low?

Select	Answer
A	The RIT or Clarifier
B	The bandwidth selection
C	The AGC or limiter
D	The tone squelch

18. - T5A10

Which term describes the rate at which electrical energy is used?

Select	Answer
A	Power
B	Current
C	Resistance
D	Voltage

19. - T5B13

Which is equal to 2425 MHz?

Select	Answer
A	2.425 GHz
B	0.002425 GHz
C	24.25 GHz
D	2425 GHz

20. - T5C06

What does the abbreviation “RF” mean?

Select	Answer
A	Radio frequency signals of all types
B	The real frequency transmitted as opposed to the apparent frequency
C	The resonant frequency of a tuned circuit
D	Reflective force in antenna transmission lines

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. - T6A03

What electrical parameter is controlled by a potentiometer?

Select	Answer
A	Resistance
B	Capacitance
C	Field strength
D	Inductance

23. - T6B07

What causes a light-emitting diode (LED) to emit light?

Select	Answer
A	Reverse current
B	Capacitively-coupled RF signal
C	Inductively-coupled RF signal
D	Forward current

24. - T6C07

What is component 8 in figure T-2?

Select	Answer
A	Resistor
B	Inductor
C	Light emitting diode
D	Regulator IC

25. - T6D05

What type of circuit controls the amount of voltage from a power supply?

Select	Answer
A	Phase inverter
B	Filter
C	Oscillator
D	Regulator

26. - T7A10

What device increases the transmitted output power from a transceiver?

Select	Answer
A	An RF power amplifier
B	A voltage divider
C	An impedance network
D	All these choices are correct

27. - T7B07

Which of the following can reduce overload of a VHF transceiver by a nearby commercial FM station?

Select	Answer
A	Installing bypass capacitors on the microphone cable
B	Installing an RF preamplifier
C	Using double-shielded coaxial cable
D	Installing a band-reject filter

28. - T7C02

Which of the following is used to determine if an antenna is resonant at the desired operating frequency?

Select	Answer
A	A Q meter
B	An antenna analyzer
C	A VTVM
D	A frequency counter

29. - T7D03

When configured to measure current, how is a multimeter connected to a component?

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

30. - T8A06

Which sideband is normally used for 10 meter HF, VHF, and UHF single-sideband communications?

Select	Answer
A	Upper sideband
B	Inverted sideband
C	Lower sideband
D	Suppressed sideband

31. - T8B12

Which of the following is a way to determine whether your satellite uplink power is neither too low nor too high?

Select	Answer
A	All these choices are correct
B	Listen for distortion on your downlink signal
C	Check your signal strength report in the telemetry data
D	Your signal strength on the downlink should be about the same as the beacon

32. - T8C10

What is required before using the EchoLink system?

Select	Answer
A	All these choices are correct
B	Register your call sign and provide proof of license
C	Complete the required EchoLink training
D	Purchase a license to use the EchoLink software

33. - T8D13

What is FT8?

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

34. - T9A12

What is an advantage of a 5/8 wavelength whip antenna for VHF or UHF mobile service?

Select	Answer
A	It radiates at a very high angle
B	It has 10 times the power gain of a 1/4 wavelength whip
C	It eliminates distortion caused by reflected signals
D	It has more gain than a 1/4-wavelength antenna

35. - T9B12

What is standing wave ratio (SWR)?

Select	Answer
A	A measure of how well a load is matched to a transmission line
B	The transmitter efficiency ratio
C	An indication of the quality of your station’s ground connection
D	The ratio of amplifier power output to input

Figure T-2