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

2. - T0B10

Which of the following is true when installing grounding conductors used for lightning protection?

Select	Answer
A	Common grounds must be avoided
B	Sharp bends must be avoided
C	Use only non-insulated wire
D	Wires must be carefully routed with precise right-angle bends

3. - T0C05

Why do exposure limits vary with frequency?

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

4. - T1A09

Who selects a Frequency Coordinator?

Select	Answer
A	Amateur operators in a local or regional area whose stations are eligible to be repeater or auxiliary stations
B	The FCC Office of Spectrum Management and Coordination Policy
C	The local chapter of the Office of National Council of Independent Frequency Coordinators
D	FCC Regional Field Office

5. - T1B05

How may amateurs use the 219 to 220 MHz segment of 1.25 meter band?

Select	Answer
A	Fixed digital message forwarding systems only
B	Fast-scan television only
C	Spread spectrum only
D	Emergency traffic only

6. - T1C03

What types of international communications are an FCC-licensed amateur radio station permitted to make?

Select	Answer
A	Any communications that would be permitted by an international broadcast station
B	Communications incidental to the purposes of the Amateur Radio Service and remarks of a personal character
C	Only communications incidental to contest exchanges; all other communications are prohibited
D	Communications incidental to conducting business or remarks of a personal nature

7. - T1D11

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

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

8. - T1E02

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

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

9. - T1F05

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

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

10. - T2A11

What term describes an amateur station that is transmitting and receiving on the same frequency?

Select	Answer
A	Diplex
B	Simplex
C	Full duplex
D	Multiplex

11. - T2B04

Which of the following could be the reason you are unable to access a repeater whose output you can hear?

Select	Answer
A	All these choices are correct
B	You are using the wrong CTCSS tone
C	You are using the wrong DCS code
D	Improper transceiver offset

12. - T2C01

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

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

13. - T3A02

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

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

14. - T3B09

What frequency range is referred to as UHF?

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

15. - T3C09

What is generally the best time for long-distance 10 meter band propagation via the F region?

Select	Answer
A	From dawn to shortly after sunset during periods of high sunspot activity
B	From shortly after sunset to dawn during periods of high sunspot activity
C	From shortly after sunset to dawn during periods of low sunspot activity
D	From dawn to shortly after sunset during periods of low sunspot activity

16. - T4A12

What is an electronic keyer?

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

17. - T4B10

Which of the following receiver filter bandwidths provides the best signal-to-noise ratio for SSB reception?

Select	Answer
A	500 Hz
B	1000 Hz
C	5000 Hz
D	2400 Hz

18. - T5A06

What is the unit of frequency?

Select	Answer
A	Tesla
B	Farad
C	Henry
D	Hertz

19. - T5B04

Which is equal to one microvolt?

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

20. - T5C07

What is the abbreviation for megahertz?

Select	Answer
A	Mhz
B	MH
C	MHz
D	mh

21. - T5D14

In which type of circuit is voltage the same across all components?

Select	Answer
A	Branch
B	Series
C	Resonant
D	Parallel

22. - T6A03

What electrical parameter is controlled by a potentiometer?

Select	Answer
A	Inductance
B	Field strength
C	Capacitance
D	Resistance

23. - T6B10

Which of the following can provide power gain?

Select	Answer
A	Reactor
B	Resistor
C	Transformer
D	Transistor

24. - T6C04

What is component 3 in figure T-1?

Select	Answer
A	Ground symbol
B	Transistor
C	Lamp
D	Resistor

25. - T6D10

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

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

26. - T7A08

Which of the following describes combining speech with an RF carrier signal?

Select	Answer
A	Impedance matching
B	Low-pass filtering
C	Oscillation
D	Modulation

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. - T7C01

What is the primary purpose of a dummy load?

Select	Answer
A	To prevent transmitting signals over the air when making tests
B	To improve the efficiency of an antenna
C	To prevent over-modulation of a transmitter
D	To improve the signal-to-noise ratio of a receiver

29. - T7D04

Which instrument is used to measure electric current?

Select	Answer
A	An ammeter
B	An electrometer
C	A voltmeter
D	An ohmmeter

30. - T8A04

Which type of modulation is commonly used for VHF and UHF voice repeaters?

Select	Answer
A	FM or PM
B	AM
C	PSK
D	SSB

31. - T8B06

Which of the following are inputs to a satellite tracking program?

Select	Answer
A	All these choices are correct
B	The last observed time of zero Doppler shift
C	The Keplerian elements
D	The satellite transmitted power

32. - T8C03

What operating activity involves contacting as many stations as possible during a specified period?

Select	Answer
A	Simulated emergency exercises
B	Contesting
C	Net operations
D	Public service events

33. - T8D09

What is CW?

Select	Answer
A	A digital mode used primarily on 2 meter FM
B	Another name for a Morse code transmission
C	A type of electromagnetic propagation
D	A technique for coil winding

34. - T9A01

What is a beam antenna?

Select	Answer
A	An omnidirectional antenna invented by Clarence Beam
B	An antenna that reverses the phase of received signals
C	An antenna built from aluminum I-beams
D	An antenna that concentrates signals in one direction

35. - T9B08

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

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

Figure T-1