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. - T0A01

Which of the following is a safety hazard of a 12-volt storage battery?

Select	Answer
A	RF emissions from a nearby transmitter can cause the electrolyte to emit poison gas
B	Touching both terminals with the hands can cause electrical shock
C	All these choices are correct
D	Shorting the terminals can cause burns, fire, or an explosion

2. - T0B04

Which of the following is an important safety precaution to observe when putting up an antenna tower?

Select	Answer
A	Wear a ground strap connected to your wrist at all times
B	All these choices are correct
C	Look for and stay clear of any overhead electrical wires
D	Insulate the base of the tower to avoid lightning strikes

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

4. - T1A03

What do the FCC rules state regarding the use of a phonetic alphabet for station identification in the Amateur Radio Service?

Select	Answer
A	It is required when transmitting emergency messages
B	All these choices are correct
C	It is encouraged
D	It is required when in contact with foreign stations

5. - T1B03

Which frequency is in the 6 meter amateur band?

Select	Answer
A	49.00 MHz
B	52.525 MHz
C	222.15 MHz
D	28.50 MHz

6. - T1C01

For which license classes are new licenses currently available from the FCC?

Select	Answer
A	Novice, Technician, General, Amateur Extra
B	Novice, Technician Plus, General, Advanced
C	Technician, Technician Plus, General, Amateur Extra
D	Technician, General, Amateur Extra

7. - T1D01

With which countries are FCC-licensed amateur radio stations prohibited from exchanging communications?

Select	Answer
A	Any country whose administration has notified the International Telecommunication Union (ITU) that it objects to such communications
B	Any country whose administration has notified the American Radio Relay League (ARRL) that it objects to such communications
C	Any country banned from such communications by the International Amateur Radio Union (IARU)
D	Any country banned from making such communications by the American Radio Relay League (ARRL)

8. - T1E05

What is an amateur station’s control point?

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

9. - T1F09

What type of amateur station simultaneously retransmits the signal of another amateur station on a different channel or channels?

Select	Answer
A	Earth station
B	Beacon station
C	Message forwarding station
D	Repeater station

10. - T2A12

What should you do before calling CQ?

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

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 need to talk louder
C	Your repeater offset is inverted
D	You are talking too loudly

12. - T2C11

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

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

13. - T3A06

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

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

14. - T3B02

What property of a radio wave defines its polarization?

Select	Answer
A	The orientation of the magnetic field
B	The ratio of the velocity to the wavelength
C	The orientation of the electric field
D	The ratio of the energy in the magnetic field to the energy in the electric field

15. - T3C06

What type of propagation is responsible for allowing over-the-horizon VHF and UHF communications to ranges of approximately 300 miles on a regular basis?

Select	Answer
A	Tropospheric ducting
B	F2 region refraction
C	Faraday rotation
D	D region refraction

16. - T4A01

Which of the following is an appropriate power supply rating for a typical 50 watt output mobile FM transceiver?

Select	Answer
A	24.0 volts at 4 amperes
B	13.8 volts at 12 amperes
C	13.8 volts at 4 amperes
D	24.0 volts at 12 amperes

17. - T4B07

What does a DMR “code plug” contain?

Select	Answer
A	The DMR software version
B	The codec for digitizing audio
C	Access information for repeaters and talkgroups
D	Your call sign in CW for automatic identification

18. - T5A02

Electrical power is measured in which of the following units?

Select	Answer
A	Watt-hours
B	Watts
C	Amperes
D	Volts

19. - T5B11

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

Select	Answer
A	28 dB
B	18 dB
C	10 dB
D	12 dB

20. - T5C05

What is the unit of impedance?

Select	Answer
A	The ohm
B	The ampere
C	The coulomb
D	The volt

21. - T5D09

What is the current through a 24-ohm resistor connected across 240 volts?

Select	Answer
A	24,000 amperes
B	10 amperes
C	216 amperes
D	0.1 amperes

22. - T6A10

Which of the following battery chemistries is rechargeable?

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

23. - T6B10

Which of the following can provide power gain?

Select	Answer
A	Resistor
B	Reactor
C	Transformer
D	Transistor

24. - T6C05

What is component 4 in figure T-1?

Select	Answer
A	Battery
B	Resistor
C	Transistor
D	Ground symbol

25. - T6D10

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

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

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	Provides a transmit tuning tone when grounded
D	Switches transceiver from receive to transmit when grounded

27. - T7B11

What is a symptom of RF feedback in a transmitter or transceiver?

Select	Answer
A	Excessive SWR at the antenna connection
B	Frequent blowing of power supply fuses
C	Reports of garbled, distorted, or unintelligible voice transmissions
D	The transmitter will not stay on the desired frequency

28. - T7C03

What does a dummy load consist of?

Select	Answer
A	A low-voltage power supply and a DC relay
B	A high-gain amplifier and a TR switch
C	A non-inductive resistor mounted on a heat sink
D	A 50-ohm reactance used to terminate a transmission line

29. - T7D02

How is a voltmeter connected to a component to measure applied voltage?

Select	Answer
A	In phase
B	In quadrature
C	In series
D	In parallel

30. - T8A09

What is the approximate bandwidth of a VHF repeater FM voice signal?

Select	Answer
A	Between 50 and 125 kHz
B	About 150 kHz
C	Less than 500 Hz
D	Between 10 and 15 kHz

31. - T8B03

Which of the following are provided by satellite tracking programs?

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

32. - T8C04

Which of the following is good procedure when contacting another station in a contest?

Select	Answer
A	All these choices are correct
B	Sign only the last two letters of your call if there are many other stations calling
C	Send only the minimum information needed for proper identification and the contest exchange
D	Contact the station twice to be sure that you are in his log

33. - T8D10

Which of the following operating activities is supported by digital mode software in the WSJT-X software suite?

Select	Answer
A	Weak signal propagation beacons
B	All these choices are correct
C	Earth-Moon-Earth
D	Meteor scatter

34. - T9A09

What is the approximate length, in inches, of a half-wavelength 6 meter dipole antenna?

Select	Answer
A	50
B	6
C	112
D	236

35. - T9B10

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

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

Figure T-1