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. - T0A08

Where should a fuse or circuit breaker be installed in a 120V AC power circuit?

Select	Answer
A	In parallel with the hot and neutral conductors
B	In parallel with the hot conductor only
C	In series with the hot and neutral conductors
D	In series with the hot conductor only

2. - T0B03

Under what circumstances is it safe to climb a tower without a helper or observer?

Select	Answer
A	Never
B	When no mechanical work is being performed
C	When the work being done is not more than 20 feet above the ground
D	When no electrical work is being performed

3. - T0C05

Why do exposure limits vary with frequency?

Select	Answer
A	Lower frequency RF fields have more energy than higher frequency fields
B	The human body absorbs more RF energy at some frequencies than at others
C	Lower frequency RF fields do not penetrate the human body
D	Higher frequency RF fields are transient in nature

4. - T1A08

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

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

5. - T1B11

What is the maximum peak envelope power output for Technician class operators in their HF band segments?

Select	Answer
A	50 watts
B	100 watts
C	10 watts
D	200 watts

6. - T1C09

What is the grace period for renewal if an amateur license expires?

Select	Answer
A	Two years
B	Ten years
C	Five years
D	Three years

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

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. - 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. - T2A03

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

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

11. - T2B01

How is a VHF/UHF transceiver’s “reverse” function used?

Select	Answer
A	To reduce power output
B	To listen on a repeater’s input frequency
C	To increase power output
D	To listen on a repeater’s output frequency

12. - T2C11

What is meant by “check” in a radiogram header?

Select	Answer
A	The call sign of the originating station
B	A box on the message form that indicates that the message was received and/or relayed
C	A list of stations that have relayed the message
D	The number of words or word equivalents in the text portion of the message

13. - T3A02

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

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

14. - T3B08

What frequency range is referred to as VHF?

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

15. - T3C11

Why is the radio horizon for VHF and UHF signals more distant than the visual horizon?

Select	Answer
A	The atmosphere refracts radio waves slightly
B	Radio waves are blocked by dust particles
C	Radio waves are not blocked by dust particles
D	Radio signals move somewhat faster than the speed of light

16. - T4A10

What function is performed with a transceiver and a digital mode hot spot?

Select	Answer
A	RTTY encoding and decoding without a computer
B	Communication using digital voice or data systems via the internet
C	High-speed digital communications for meteor scatter
D	FT8 digital communications via AFSK

17. - T4B08

What is the advantage of having multiple receive bandwidth choices on a multimode transceiver?

Select	Answer
A	Increases the amount of offset between receive and transmit frequencies
B	Permits noise or interference reduction by selecting a bandwidth matching the mode
C	Increases the number of frequencies that can be stored in memory
D	Permits monitoring several modes at once by selecting a separate filter for each mode

18. - T5A04

What are the units of electrical resistance?

Select	Answer
A	Mhos
B	Coulombs
C	Ohms
D	Siemens

19. - T5B10

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

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

20. - T5C12

What is impedance?

Select	Answer
A	The inverse of resistance
B	The opposition to AC current flow
C	The power handling capability of a component
D	The Q or Quality Factor of a component

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. - T6A12

What type of switch is represented by component 3 in figure T-2?

Select	Answer
A	Single-pole single-throw
B	Double-pole single-throw
C	Double-pole double-throw
D	Single-pole double-throw

23. - T6B04

Which of the following components can consist of three regions of semiconductor material?

Select	Answer
A	Pentagrid converter
B	Alternator
C	Triode
D	Transistor

24. - T6C03

What is component 2 in figure T-1?

Select	Answer
A	Connector
B	Resistor
C	Indicator lamp
D	Transistor

25. - T6D10

What is the function of component 2 in figure T-1?

Select	Answer
A	Control the flow of current
B	Supply electrical energy
C	Convert electrical energy into radio waves
D	Give off light when current flows through it

26. - T7A07

What is the function of a transceiver’s PTT input?

Select	Answer
A	Input for a key used to send CW
B	Input for a preamplifier tuning tone
C	Switches transceiver from receive to transmit when grounded
D	Provides a transmit tuning tone when grounded

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

28. - T7C09

Which of the following causes failure of coaxial cables?

Select	Answer
A	Rapid fluctuation in transmitter output power
B	Moisture contamination
C	Solder flux contamination
D	Operation at 100% duty cycle for an extended period

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. - T8A01

Which of the following is a form of amplitude modulation?

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

31. - T8B03

Which of the following are provided by satellite tracking programs?

Select	Answer
A	Maps showing the real-time position of the satellite track over Earth
B	The apparent frequency of the satellite transmission, including effects of Doppler shift
C	All these choices are correct
D	The time, azimuth, and elevation of the start, maximum altitude, and end of a pass

32. - T8C02

Which of these items would be useful for a hidden transmitter hunt?

Select	Answer
A	A directional antenna
B	Calibrated SWR meter
C	All these choices are correct
D	A calibrated noise bridge

33. - T8D03

What kind of data can be transmitted by APRS?

Select	Answer
A	GPS position data
B	All these choices are correct
C	Text messages
D	Weather data

34. - T9A11

What is antenna gain?

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

35. - T9B09

What can cause erratic changes in SWR?

Select	Answer
A	Local thunderstorm
B	Over-modulation
C	Overload from a strong local station
D	Loose connection in the antenna or feed line

Figure T-2

Figure T-1