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. - T0A06

What is a good way to guard against electrical shock at your station?

Select	Answer
A	All these choices are correct
B	Connect all AC powered station equipment to a common safety ground
C	Use three-wire cords and plugs for all AC powered equipment
D	Install mechanical interlocks in high-voltage circuits

2. - T0B06

What is the minimum safe distance from a power line to allow when installing an antenna?

Select	Answer
A	The height of the power line above ground
B	1/2 wavelength at the operating frequency
C	Enough so that if the antenna falls, no part of it can come closer than 10 feet to the power wires
D	Add the height of the antenna to the height of the power line and multiply by a factor of 1.5

3. - T0C08

Which of the following actions can reduce exposure to RF radiation?

Select	Answer
A	Increase the duty cycle
B	Relocate antennas
C	All these choices are correct
D	Relocate the transmitter

4. - T1A01

Which of the following is part of the Basis and Purpose of the Amateur Radio Service?

Select	Answer
A	All these choices are correct
B	Advancing skills in the technical and communication phases of the radio art
C	Providing communications for international non-profit organizations
D	Providing personal radio communications for as many citizens as possible

5. - T1B01

Which of the following frequency ranges are available for phone operation by Technician licensees?

Select	Answer
A	28.050 MHz to 28.150 MHz
B	28.300 MHz to 28.500 MHz
C	28.100 MHz to 28.300 MHz
D	28.500 MHz to 28.600 MHz

6. - T1C06

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

Select	Answer
A	From any vessel or craft located in international waters and documented or registered in the United States
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 anywhere within International Telecommunication Union (ITU) Regions 2 and 3

7. - T1D03

When is it permissible to transmit messages encoded to obscure their meaning?

Select	Answer
A	Only when transmitting control commands to space stations or radio control craft
B	Never
C	Only when transmitting certain approved digital codes
D	Only during contests

8. - T1E05

What is an amateur station’s control point?

Select	Answer
A	The location of the station’s transmitting antenna
B	The mailing address of the station licensee
C	The location at which the control operator function is performed
D	The location of the station’s transmitting apparatus

9. - T1F06

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

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

10. - T2A07

What is meant by "repeater offset”?

Select	Answer
A	The repeater has a time delay to prevent interference
B	The number of simultaneous transmit frequencies used by a repeater
C	The repeater station identification is done on a separate frequency
D	The difference between a repeater’s transmit and receive frequencies

11. - T2B01

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

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

12. - T2C11

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

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

13. - T3A06

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

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

14. - T3B01

What is the relationship between the electric and magnetic fields of an electromagnetic wave?

Select	Answer
A	They are at right angles
B	They are in parallel
C	They travel at different speeds
D	They revolve in opposite directions

15. - T3C04

Which of the following types of propagation is most commonly associated with occasional strong signals on the 10, 6, and 2 meter bands from beyond the radio horizon?

Select	Answer
A	Sporadic E
B	Backscatter
C	Gray-line propagation
D	D region absorption

16. - T4A12

What is an electronic keyer?

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

17. - T4B11

Which of the following must be programmed into a D-STAR digital transceiver before transmitting?

Select	Answer
A	Your output power
B	The codec type being used
C	All these choices are correct
D	Your call sign

18. - T5A01

Electrical current is measured in which of the following units?

Select	Answer
A	Watts
B	Amperes
C	Ohms
D	Volts

19. - T5B11

Which decibel value represents a power increase from 20 watts to 200 watts?

Select	Answer
A	28 dB
B	10 dB
C	18 dB
D	12 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. - T5D14

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

Select	Answer
A	Parallel
B	Resonant
C	Branch
D	Series

22. - T6A09

What electrical component is used to protect other circuit components from current overloads?

Select	Answer
A	Fuse
B	All these choices are correct
C	Varactor
D	Thyratron

23. - T6B07

What causes a light-emitting diode (LED) to emit light?

Select	Answer
A	Capacitively-coupled RF signal
B	Forward current
C	Reverse current
D	Inductively-coupled RF signal

24. - T6C08

What is component 9 in figure T-2?

Select	Answer
A	Variable capacitor
B	Variable transformer
C	Variable resistor
D	Variable inductor

25. - T6D01

Which of the following devices or circuits changes an alternating current into a varying direct current signal?

Select	Answer
A	Rectifier
B	Reflector
C	Transformer
D	Amplifier

26. - T7A10

What device increases the transmitted output power from a transceiver?

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

27. - T7B03

Which of the following can cause radio frequency interference?

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

28. - T7C11

What is a disadvantage of air core coaxial cable when compared to foam or solid dielectric types?

Select	Answer
A	It has more loss per foot
B	It cannot be used for VHF or UHF antennas
C	It cannot be used at below freezing temperatures
D	It requires special techniques to prevent moisture in the cable

29. - T7D08

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

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

30. - T8A01

Which of the following is a form of amplitude modulation?

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

31. - T8B09

What causes spin fading of satellite signals?

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

32. - T8C02

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

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

33. - T8D09

What is CW?

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

34. - T9A08

What is the approximate length, in inches, of a quarter-wavelength vertical antenna for 146 MHz?

Select	Answer
A	19
B	12
C	112
D	50

35. - T9B10

What is the electrical difference between RG-58 and RG-213 coaxial cable?

Select	Answer
A	RG-58 cable has two shields
B	RG-58 cable can handle higher power levels
C	RG-213 cable has less loss at a given frequency
D	There is no significant difference between the two types

Figure T-2