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. - T0A02

What health hazard is presented by electrical current flowing through the body?

Select	Answer
A	It may cause injury by heating tissue
B	It may disrupt the electrical functions of cells
C	All these choices are correct
D	It may cause involuntary muscle contractions

2. - T0B01

Which of the following is good practice when installing ground wires on a tower for lightning protection?

Select	Answer
A	Make sure all ground wire bends are right angles
B	Put a drip loop in the ground connection to prevent water damage to the ground system
C	Ensure that connections are short and direct
D	All these choices are correct

3. - T0C03

How does the allowable power density for RF safety change if duty cycle changes from 100 percent to 50 percent?

Select	Answer
A	There is no adjustment allowed for lower duty cycle
B	It increases by a factor of 3
C	It decreases by 50 percent
D	It increases by a factor of 2

4. - T1A06

What is the FCC Part 97 definition of a beacon?

Select	Answer
A	A continuous transmission of weather information authorized in the amateur bands by the National Weather Service
B	A bulletin sent by the FCC to announce a national emergency
C	An amateur station transmitting communications for the purposes of observing propagation or related experimental activities
D	A government transmitter marking the amateur radio band edges

5. - T1B12

Except for some specific restrictions, what is the maximum peak envelope power output for Technician class operators using frequencies above 30 MHz?

Select	Answer
A	1500 watts
B	100 watts
C	500 watts
D	50 watts

6. - T1C06

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

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

7. - T1D11

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

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

8. - T1E10

Which of the following is an example of remote control as defined in Part 97?

Select	Answer
A	Controlling a model aircraft, boat, or car by amateur radio
B	All these choices are correct
C	Operating the station over the internet
D	Repeater operation

9. - T1F06

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

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

10. - T2A03

What is a common repeater frequency offset in the 70 cm band?

Select	Answer
A	Plus or minus 1 MHz
B	Plus or minus 500 kHz
C	Plus or minus 5 MHz
D	Plus or minus 600 kHz

11. - T2B05

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

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

12. - T2C01

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

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

13. - T3A02

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

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

14. - T3B05

What is the relationship between wavelength and frequency?

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

15. - T3C01

Why are simplex UHF signals rarely heard beyond their radio horizon?

Select	Answer
A	UHF signals are usually not propagated by the ionosphere
B	They are too weak to go very far
C	FCC regulations prohibit them from going more than 50 miles
D	UHF signals are absorbed by the ionospheric D region

16. - T4A12

What is an electronic keyer?

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

17. - T4B03

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

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

18. - T5A08

Which of the following is a good electrical insulator?

Select	Answer
A	Mercury
B	Glass
C	Copper
D	Aluminum

19. - T5B07

Which is equal to 3.525 MHz?

Select	Answer
A	35.25 kHz
B	3525 kHz
C	3,525,000 kHz
D	0.003525 kHz

20. - T5C06

What does the abbreviation “RF” mean?

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

21. - T5D03

What formula is used to calculate resistance in a circuit?

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

22. - T6A10

Which of the following battery chemistries is rechargeable?

Select	Answer
A	All these choices are correct
B	Lead-acid
C	Nickel-metal hydride
D	Lithium-ion

23. - T6B10

Which of the following can provide power gain?

Select	Answer
A	Transformer
B	Transistor
C	Reactor
D	Resistor

24. - T6C06

What is component 6 in figure T-2?

Select	Answer
A	Regulator IC
B	Transistor
C	Resistor
D	Capacitor

25. - T6D07

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

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

26. - T7A05

What is the name of a circuit that generates a signal at a specific frequency?

Select	Answer
A	Phase modulator
B	Oscillator
C	Reactance modulator
D	Low-pass filter

27. - T7B05

How can fundamental overload of a non-amateur radio or TV receiver by an amateur signal be reduced or eliminated?

Select	Answer
A	Switch the transmitter to a narrow-band mode
B	Switch the transmitter from FM to SSB
C	Block the amateur signal with a filter at the antenna input of the affected receiver
D	Block the interfering signal with a filter on the amateur transmitter

28. - T7C04

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

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

29. - T7D07

Which of the following measurements are made using a multimeter?

Select	Answer
A	Signal strength and noise
B	Voltage and resistance
C	All these choices are correct
D	Impedance and reactance

30. - T8A01

Which of the following is a form of amplitude modulation?

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

31. - T8B09

What causes spin fading of satellite signals?

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

32. - T8C11

What is an amateur radio station that connects other amateur stations to the internet?

Select	Answer
A	A gateway
B	A digipeater
C	A beacon
D	A repeater

33. - T8D08

Which of the following is included in packet radio transmissions?

Select	Answer
A	A check sum that permits error detection
B	All these choices are correct
C	A header that contains the call sign of the station to which the information is being sent
D	Automatic repeat request in case of error

34. - T9A07

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

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

35. - T9B11

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

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

Figure T-2