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. - T0A11

What hazard exists in a power supply immediately after turning it off?

Select	Answer
A	Leakage flux in the power transformer
B	Circulating currents in the dc filter
C	Voltage transients from kickback diodes
D	Charge stored in filter capacitors

2. - T0B01

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

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

3. - T0C07

What hazard is created by touching an antenna during a transmission?

Select	Answer
A	Radiation poisoning
B	RF burn to skin
C	Electrocution
D	All these choices are correct

4. - T1A02

Which agency regulates and enforces the rules for the Amateur Radio Service in the United States?

Select	Answer
A	The FCC
B	FEMA
C	Homeland Security
D	All these choices are correct

5. - T1B04

Which amateur band includes 146.52 MHz?

Select	Answer
A	6 meters
B	2 meters
C	70 centimeters
D	20 meters

6. - T1C06

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

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

7. - T1D03

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

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

8. - T1E07

When the control operator is not the station licensee, who is responsible for the proper operation of the station?

Select	Answer
A	All licensed amateurs who are present at the operation
B	Only the control operator
C	The control operator and the station licensee
D	Only the station licensee

9. - T1F10

Who is accountable if a repeater inadvertently retransmits communications that violate the FCC rules?

Select	Answer
A	The control operator of the originating station
B	Both the originating station and the repeater owner
C	The owner of the repeater
D	The control operator of the repeater

10. - T2A12

What should you do before calling CQ?

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

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. - T2C07

Which of the following is standard practice when you participate in a net?

Select	Answer
A	Unless you are reporting an emergency, transmit only when directed by the net control station
B	Record the time of each of your transmissions
C	All these choices are correct
D	When first responding to the net control station, transmit your call sign, name, and address as in the FCC database

13. - T3A03

What antenna polarization is normally used for long-distance CW and SSB contacts on the VHF and UHF bands?

Select	Answer
A	Horizontal
B	Left-hand circular
C	Right-hand circular
D	Vertical

14. - T3B07

In addition to frequency, which of the following is used to identify amateur radio bands?

Select	Answer
A	The approximate wavelength in meters
B	Traditional letter/number designators
C	Channel numbers
D	All these choices are correct

15. - T3C07

What band is best suited for communicating via meteor scatter?

Select	Answer
A	6 meters
B	33 centimeters
C	70 centimeters
D	2 meters

16. - T4A03

Why are short, heavy-gauge wires used for a transceiver’s DC power connection?

Select	Answer
A	To minimize voltage drop when transmitting
B	All these choices are correct
C	To provide a good counterpoise for the antenna
D	To avoid RF interference

17. - T4B11

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

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

18. - T5A12

What describes the number of times per second that an alternating current makes a complete cycle?

Select	Answer
A	Pulse rate
B	Wavelength
C	Speed
D	Frequency

19. - T5B10

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

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

20. - T5C10

How much power is delivered by a voltage of 12 volts DC and a current of 2.5 amperes?

Select	Answer
A	0.208 watts
B	30 watts
C	14.5 watts
D	4.8 watts

21. - T5D10

What is the voltage across a 2-ohm resistor if a current of 0.5 amperes flows through it?

Select	Answer
A	1 volt
B	0.25 volts
C	2.5 volts
D	1.5 volts

22. - T6A10

Which of the following battery chemistries is rechargeable?

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

23. - T6B10

Which of the following can provide power gain?

Select	Answer
A	Reactor
B	Transistor
C	Transformer
D	Resistor

24. - T6C12

Which of the following is accurately represented in electrical schematics?

Select	Answer
A	Component connections
B	Physical appearance of components
C	Wire lengths
D	All these choices are correct

25. - T6D05

What type of circuit controls the amount of voltage from a power supply?

Select	Answer
A	Filter
B	Phase inverter
C	Oscillator
D	Regulator

26. - T7A01

Which term describes the ability of a receiver to detect the presence of a signal?

Select	Answer
A	Selectivity
B	Linearity
C	Sensitivity
D	Total Harmonic Distortion

27. - T7B04

Which of the following could you use to cure distorted audio caused by RF current on the shield of a microphone cable?

Select	Answer
A	Preamplifier
B	Low-pass filter
C	Band-pass filter
D	Ferrite choke

28. - T7C06

What does an SWR reading of 4:1 indicate?

Select	Answer
A	Good impedance match
B	Loss of -4 dB
C	Gain of +4 dB
D	Impedance mismatch

29. - T7D10

What reading indicates that an ohmmeter is connected across a large, discharged capacitor?

Select	Answer
A	Alternating between open and short circuit
B	Steady full-scale reading
C	Decreasing resistance with time
D	Increasing resistance with time

30. - T8A06

Which sideband is normally used for 10 meter HF, VHF, and UHF single-sideband communications?

Select	Answer
A	Upper sideband
B	Suppressed sideband
C	Inverted sideband
D	Lower sideband

31. - T8B08

What is meant by the statement that a satellite is operating in U/V mode?

Select	Answer
A	The satellite operates using ultraviolet frequencies
B	The satellite uplink is in the 15 meter band and the downlink is in the 10 meter band
C	The satellite uplink is in the 70 centimeter band and the downlink is in the 2 meter band
D	The satellite frequencies are usually variable

32. - T8C11

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

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

33. - T8D11

What is an ARQ transmission system?

Select	Answer
A	A method of compressing data using autonomous reiterative Q codes prior to final encoding
B	A system used to encrypt command signals to an amateur radio satellite
C	An error correction method in which the receiving station detects errors and sends a request for retransmission
D	A special transmission format limited to video signals

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	The bandwidth of the antenna will decrease, increasing SWR
C	The SWR might decrease, decreasing the signal strength
D	Signal strength is reduced due to the shielding effect of the vehicle

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