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. - T0A10

What hazard is caused by charging or discharging a battery too quickly?

Select	Answer
A	Excess output ripple
B	Inverse memory effect
C	Half-wave rectification
D	Overheating or out-gassing

2. - T0B09

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

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

3. - T0C07

What hazard is created by touching an antenna during a transmission?

Select	Answer
A	Electrocution
B	RF burn to skin
C	Radiation poisoning
D	All these choices are correct

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	An amateur station using amateur radio satellites for relay of signals
C	Any satellite orbiting Earth
D	A manned satellite orbiting Earth

5. - T1B02

Which amateurs may contact the International Space Station (ISS) on VHF bands?

Select	Answer
A	Any amateur holding a Technician class or higher license
B	Any amateur holding a General class or higher license who has applied for and received approval from NASA
C	Any amateur holding a Technician class or higher license who has applied for and received approval from NASA
D	Any amateur holding a General class or higher license

6. - T1C05

Which of the following is a valid Technician class call sign format?

Select	Answer
A	KF1XXX
B	All these choices are correct
C	W1XX
D	KA1X

7. - T1D04

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

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

8. - T1E02

Who may be the control operator of a station communicating through an amateur satellite or space station?

Select	Answer
A	Only an Amateur Extra Class operator who is also an AMSAT member
B	A General class or higher licensee with a satellite operator certification
C	Only an Amateur Extra Class operator
D	Any amateur allowed to transmit on the satellite uplink frequency

9. - T1F05

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

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

10. - T2A04

What is an appropriate way to call another station on a repeater if you know the other station's call sign?

Select	Answer
A	Wait for the station to call CQ, then answer
B	Say "CQ" three times, then the other station's call sign
C	Say the station's call sign, then identify with your call sign
D	Say "break, break," then say the station's call sign

11. - T2B08

Which of the following applies when two stations transmitting on the same frequency interfere with each other?

Select	Answer
A	The stations should negotiate continued use of the frequency
B	Interference is inevitable, so no action is required
C	Use subaudible tones so both stations can share the frequency
D	Both stations should choose another frequency to avoid conflict

12. - T2C07

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

Select	Answer
A	When first responding to the net control station, transmit your call sign, name, and address as in the FCC database
B	Record the time of each of your transmissions
C	All these choices are correct
D	Unless you are reporting an emergency, transmit only when directed by the net control station

13. - T3A11

Which region of the atmosphere can refract or bend HF and VHF radio waves?

Select	Answer
A	The mesosphere
B	The troposphere
C	The ionosphere
D	The stratosphere

14. - T3B05

What is the relationship between wavelength and frequency?

Select	Answer
A	Wavelength and frequency increase as path length increases
B	Wavelength gets longer as frequency increases
C	Wavelength and frequency are unrelated
D	Wavelength gets shorter as frequency increases

15. - T3C03

What is a characteristic of VHF signals received via auroral backscatter?

Select	Answer
A	They occur only during winter nighttime hours
B	They are generally strongest when your antenna is aimed west
C	They are often received from 10,000 miles or more
D	They are distorted and signal strength varies considerably

16. - T4A02

Which of the following should be considered when selecting an accessory SWR meter?

Select	Answer
A	All these choices are correct
B	The types of modulation being used at the station
C	The distance that the meter will be located from the antenna
D	The frequency and power level at which the measurements will be made

17. - T4B03

How is squelch adjusted so that a weak FM signal can be heard?

Select	Answer
A	Set the squelch threshold so that receiver output audio is on all the time
B	Turn on the anti-squelch function
C	Enable squelch enhancement
D	Turn up the audio level until it overcomes the squelch threshold

18. - T5A01

Electrical current is measured in which of the following units?

Select	Answer
A	Ohms
B	Amperes
C	Volts
D	Watts

19. - T5B04

Which is equal to one microvolt?

Select	Answer
A	One one-thousandth of a volt
B	One thousand kilovolts
C	One million volts
D	One one-millionth of a volt

20. - T5C13

What is the abbreviation for kilohertz?

Select	Answer
A	KHZ
B	khZ
C	kHz
D	khz

21. - T5D05

What is the resistance of a circuit for which the applied voltage is 12 volts and the current flow is 1.5 amperes?

Select	Answer
A	18 ohms
B	13.5 ohms
C	0.125 ohms
D	8 ohms

22. - T6A03

What electrical parameter is controlled by a potentiometer?

Select	Answer
A	Field strength
B	Capacitance
C	Resistance
D	Inductance

23. - T6B01

Which is true about forward voltage drop in a diode?

Select	Answer
A	It is lower in some diode types than in others
B	It is proportional to peak inverse voltage
C	It has no impact on the voltage delivered to the load
D	It indicates that the diode is defective

24. - T6C04

What is component 3 in figure T-1?

Select	Answer
A	Transistor
B	Resistor
C	Lamp
D	Ground symbol

25. - T6D03

Which of the following is a reason to use shielded wire?

Select	Answer
A	To prevent coupling of unwanted signals to or from the wire
B	To increase the current carrying capability of the wire
C	To couple the wire to other signals
D	To decrease the resistance of DC power connections

26. - T7A06

What device converts the RF input and output of a transceiver to another band?

Select	Answer
A	High-pass filter
B	Transverter
C	Low-pass filter
D	Phase converter

27. - T7B03

Which of the following can cause radio frequency interference?

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

28. - T7C05

Why do most solid-state transmitters reduce output power as SWR increases beyond a certain level?

Select	Answer
A	Because power supplies cannot supply enough current at high SWR
B	To protect the output amplifier transistors
C	To lower the SWR on the transmission line
D	To comply with FCC rules on spectral purity

29. - T7D02

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

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

30. - T8A01

Which of the following is a form of amplitude modulation?

Select	Answer
A	Packet radio
B	Spread spectrum
C	Phase shift keying (PSK)
D	Single sideband

31. - T8B07

What is Doppler shift in reference to satellite communications?

Select	Answer
A	An observed change in signal frequency caused by relative motion between the satellite and Earth station
B	A mode where the satellite receives signals on one band and transmits on another
C	A change in the satellite orbit
D	A special digital communications mode for some satellites

32. - T8C04

Which of the following is good procedure when contacting another station in a contest?

Select	Answer
A	Contact the station twice to be sure that you are in his log
B	Send only the minimum information needed for proper identification and the contest exchange
C	Sign only the last two letters of your call if there are many other stations calling
D	All these choices are correct

33. - T8D10

Which of the following operating activities is supported by digital mode software in the WSJT-X software suite?

Select	Answer
A	All these choices are correct
B	Meteor scatter
C	Earth-Moon-Earth
D	Weak signal propagation beacons

34. - T9A07

What is a disadvantage of using a handheld VHF transceiver with a flexible antenna inside a vehicle?

Select	Answer
A	The SWR might decrease, decreasing the signal strength
B	Signal strength is reduced due to the shielding effect of the vehicle
C	The bandwidth of the antenna will decrease, increasing SWR
D	All these choices are correct

35. - T9B08

Which of the following is a source of loss in coaxial feed line?

Select	Answer
A	All these choices are correct
B	Multiple connectors in the line
C	High SWR
D	Water intrusion into coaxial connectors

Figure T-1