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. - T0A01

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

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

2. - T0B11

Which of the following establishes grounding requirements for an amateur radio tower or antenna?

Select	Answer
A	Local electrical codes
B	FAA tower lighting regulations
C	UL recommended practices
D	FCC Part 97 rules

3. - T0C12

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

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

4. - T1A08

Which of the following entities recommends transmit/receive channels and other parameters for auxiliary and repeater stations?

Select	Answer
A	Volunteer Frequency Coordinator recognized by local amateurs
B	FCC Regional Field Office
C	International Telecommunication Union
D	Frequency Spectrum Manager appointed by the FCC

5. - T1B07

Which of the following VHF/UHF band segments are limited to CW only?

Select	Answer
A	902.0 MHz to 902.1 MHz
B	All these choices are correct
C	50.0 MHz to 50.1 MHz and 144.0 MHz to 144.1 MHz
D	219 MHz to 220 MHz and 420.0 MHz to 420.1 MHz

6. - T1C06

From which of the following locations may an FCC-licensed amateur station transmit?

Select	Answer
A	From anywhere within International Telecommunication Union (ITU) Regions 2 and 3
B	From within any country that is a member of the United Nations
C	From within any country that belongs to the International Telecommunication Union
D	From any vessel or craft located in international waters and documented or registered in the United States

7. - T1D01

With which countries are FCC-licensed amateur radio stations prohibited from exchanging communications?

Select	Answer
A	Any country banned from such communications by the International Amateur Radio Union (IARU)
B	Any country whose administration has notified the American Radio Relay League (ARRL) that it objects to such communications
C	Any country banned from making such communications by the American Radio Relay League (ARRL)
D	Any country whose administration has notified the International Telecommunication Union (ITU) that it objects to such communications

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

9. - T1F06

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

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

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	Say "CQ" three times, then the other station's call sign
B	Wait for the station to call CQ, then answer
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. - 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. - T2C09

Are amateur station control operators ever permitted to operate outside the frequency privileges of their license class?

Select	Answer
A	Yes, but only when part of a FEMA emergency plan
B	Yes, but only in situations involving the immediate safety of human life or protection of property
C	No
D	Yes, but only when part of a RACES emergency plan

13. - T3A06

What is the meaning of the term “picket fencing”?

Select	Answer
A	Alternating transmissions during a net operation
B	Local vs long-distance communications
C	Rapid flutter on mobile signals due to multipath propagation
D	A type of ground system used with vertical antennas

14. - T3B10

What frequency range is referred to as HF?

Select	Answer
A	30 to 300 MHz
B	3 to 30 MHz
C	300 to 3000 kHz
D	300 to 3000 MHz

15. - T3C10

Which of the following bands may provide long-distance communications via the ionosphere’s F region during the peak of the sunspot cycle?

Select	Answer
A	23 centimeters
B	70 centimeters and 1.25 meters
C	6 and 10 meters
D	All these choices are correct

16. - T4A12

What is an electronic keyer?

Select	Answer
A	A device that assists in manual sending of Morse code
B	An interlock to prevent unauthorized use of a radio
C	A device for voice activated switching from receive to transmit
D	A device for switching antennas from transmit to receive

17. - T4B03

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

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

18. - T5A12

What describes the number of times per second that an alternating current makes a complete cycle?

Select	Answer
A	Wavelength
B	Speed
C	Frequency
D	Pulse rate

19. - T5B08

Which is equal to 1,000,000 picofarads?

Select	Answer
A	1 microfarad
B	1,000,000,000 microfarads
C	0.001 microfarads
D	1000 microfarads

20. - T5C10

How much power is delivered by a voltage of 12 volts DC and a current of 2.5 amperes?

Select	Answer
A	4.8 watts
B	0.208 watts
C	14.5 watts
D	30 watts

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	Inductance
B	Field strength
C	Capacitance
D	Resistance

23. - T6B09

What are the names for the electrodes of a diode?

Select	Answer
A	Gate and base
B	Source and drain
C	Anode and cathode
D	Plus and minus

24. - T6C07

What is component 8 in figure T-2?

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

25. - T6D02

What is a relay?

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

26. - T7A06

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

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

27. - T7B11

What is a symptom of RF feedback in a transmitter or transceiver?

Select	Answer
A	Reports of garbled, distorted, or unintelligible voice transmissions
B	The transmitter will not stay on the desired frequency
C	Frequent blowing of power supply fuses
D	Excessive SWR at the antenna connection

28. - T7C03

What does a dummy load consist of?

Select	Answer
A	A 50-ohm reactance used to terminate a transmission line
B	A low-voltage power supply and a DC relay
C	A non-inductive resistor mounted on a heat sink
D	A high-gain amplifier and a TR switch

29. - T7D08

Which of the following types of solder should not be used for radio and electronic applications?

Select	Answer
A	Lead-tin solder
B	Rosin-core solder
C	Tin-copper solder
D	Acid-core solder

30. - T8A09

What is the approximate bandwidth of a VHF repeater FM voice signal?

Select	Answer
A	Between 10 and 15 kHz
B	About 150 kHz
C	Between 50 and 125 kHz
D	Less than 500 Hz

31. - T8B02

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

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

32. - T8C10

What is required before using the EchoLink system?

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

33. - T8D05

Which of the following is an application of APRS?

Select	Answer
A	Providing voice over internet connection between repeaters
B	Providing information on the number of stations signed into a repeater
C	Providing real-time tactical digital communications in conjunction with a map showing the locations of stations
D	Showing automatically the number of packets transmitted via PACTOR during a specific time interval

34. - T9A11

What is antenna gain?

Select	Answer
A	The additional power that is required in the antenna when transmitting on a higher frequency
B	The additional power that is added to the transmitter power
C	The increase in impedance on receive or transmit compared to a reference antenna
D	The increase in signal strength in a specified direction compared to a reference antenna

35. - T9B11

Which of the following types of feed line has the lowest loss at VHF and UHF?

Select	Answer
A	Air-insulated hardline
B	50-ohm flexible coax
C	75-ohm flexible coax
D	Multi-conductor unbalanced cable

Figure T-2