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. - T0A12

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

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

2. - T0B08

Which is a proper grounding method for a tower?

Select	Answer
A	A connection between the tower base and a cold water pipe
B	Separate eight-foot ground rods for each tower leg, bonded to the tower and each other
C	A ferrite-core RF choke connected between the tower and ground
D	A single four-foot ground rod, driven into the ground no more than 12 inches from the base

3. - T0C02

At which of the following frequencies does maximum permissible exposure have the lowest value?

Select	Answer
A	50 MHz
B	1296 MHz
C	3.5 MHz
D	440 MHz

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

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

6. - T1C01

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

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

7. - T1D11

When may an amateur station transmit without identifying on the air?

Select	Answer
A	When the transmissions are unmodulated
B	When transmitting signals to control model craft
C	When the transmissions are of a brief nature to make station adjustments
D	When the transmitted power level is below 1 watt

8. - T1E06

When, under normal circumstances, may a Technician class licensee be the control operator of a station operating in an Amateur Extra Class band segment?

Select	Answer
A	At no time
B	When using a club station whose trustee holds an Amateur Extra Class license
C	As part of a multi-operator contest team
D	When designated as the control operator by an Amateur Extra Class licensee

9. - T1F03

When are you required to transmit your assigned call sign?

Select	Answer
A	At least every 10 minutes during and at the end of a communication
B	At least once during each transmission
C	At least every 15 minutes during and at the end of a communication
D	At the beginning of each contact, and every 10 minutes thereafter

10. - T2A12

What should you do before calling CQ?

Select	Answer
A	Make sure you are authorized to use that frequency
B	Ask if the frequency is in use
C	All these choices are correct
D	Listen first to be sure that no one else is using the frequency

11. - T2B05

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

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

12. - T2C01

When do FCC rules NOT apply to the operation of an amateur station?

Select	Answer
A	FCC rules always apply
B	When operating under special ARES rules
C	When operating under special FEMA rules
D	When operating a RACES station

13. - T3A02

What is the effect of vegetation on UHF and microwave signals?

Select	Answer
A	Amplification
B	Polarization rotation
C	Absorption
D	Knife-edge diffraction

14. - T3B08

What frequency range is referred to as VHF?

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

15. - T3C06

What type of propagation is responsible for allowing over-the-horizon VHF and UHF communications to ranges of approximately 300 miles on a regular basis?

Select	Answer
A	Tropospheric ducting
B	D region refraction
C	F2 region refraction
D	Faraday rotation

16. - T4A11

Where should the negative power return of a mobile transceiver be connected in a vehicle?

Select	Answer
A	At the 12 volt battery chassis ground
B	At the antenna mount
C	Through the transceiver’s mounting bracket
D	To any metal part of the vehicle

17. - T4B09

How is a specific group of stations selected on a digital voice transceiver?

Select	Answer
A	By activating automatic identification
B	By enabling the group’s CTCSS tone
C	By entering the group’s identification code
D	By retrieving the frequencies from transceiver memory

18. - T5A02

Electrical power is measured in which of the following units?

Select	Answer
A	Watts
B	Volts
C	Amperes
D	Watt-hours

19. - T5B10

Which decibel value most closely represents a power decrease from 12 watts to 3 watts?

Select	Answer
A	-6 dB
B	-1 dB
C	-3 dB
D	-9 dB

20. - T5C08

What is the formula used to calculate electrical power (P) in a DC circuit?

Select	Answer
A	P = E – I
B	P = I + E
C	P = I  E
D	P = E / I

21. - T5D02

What formula is used to calculate voltage in a circuit?

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

22. - T6A08

What is the function of an SPDT switch?

Select	Answer
A	Two circuits are each switched between one of two other circuits
B	A single circuit is opened or closed
C	A single circuit is switched between one of two other circuits
D	Two circuits are opened or closed

23. - T6B02

What electronic component allows current to flow in only one direction?

Select	Answer
A	Driven element
B	Resistor
C	Diode
D	Fuse

24. - T6C01

What is the name of an electrical wiring diagram that uses standard component symbols?

Select	Answer
A	Schematic
B	Flow chart
C	Bill of materials
D	Connector pinout

25. - T6D07

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

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

26. - T7A10

What device increases the transmitted output power from a transceiver?

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

27. - T7B03

Which of the following can cause radio frequency interference?

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

28. - T7C04

What reading on an SWR meter indicates a perfect impedance match between the antenna and the feed line?

Select	Answer
A	50:50
B	Zero
C	1:1
D	Full Scale

29. - T7D03

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

Select	Answer
A	In phase
B	In series
C	In parallel
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. - T8B09

What causes spin fading of satellite signals?

Select	Answer
A	Rotation of the satellite and its antennas
B	Doppler shift of the received signal
C	Circular polarized noise interference radiated from the sun
D	Interfering signals within the satellite uplink band

32. - T8C09

Which of the following protocols enables an amateur station to transmit through a repeater without using a radio to initiate the transmission?

Select	Answer
A	EchoLink
B	DMR
C	IRLP
D	D-STAR

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	Weak signal propagation beacons
C	Earth-Moon-Earth
D	Meteor scatter

34. - T9A05

Which of the following increases the resonant frequency of a dipole antenna?

Select	Answer
A	Shortening it
B	Adding capacitive loading to the ends of the radiating wires
C	Inserting coils in series with radiating wires
D	Lengthening it

35. - T9B08

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

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