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. - T0A10

What hazard is caused by charging or discharging a battery too quickly?

Select	Answer
A	Inverse memory effect
B	Overheating or out-gassing
C	Half-wave rectification
D	Excess output ripple

2. - T0B04

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

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

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

4. - T1A02

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

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

5. - T1B04

Which amateur band includes 146.52 MHz?

Select	Answer
A	70 centimeters
B	20 meters
C	6 meters
D	2 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 anywhere within International Telecommunication Union (ITU) Regions 2 and 3
C	From any vessel or craft located in international waters and documented or registered in the United States
D	From within any country that is a member of the United Nations

7. - T1D11

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

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

8. - T1E04

What determines the transmitting frequency privileges of an amateur station?

Select	Answer
A	The highest class of operator license held by anyone on the premises
B	The frequency authorized by the frequency coordinator
C	The frequencies printed on the license grant
D	The class of operator license held by the control operator

9. - T1F11

Which of the following is a requirement for the issuance of a club station license grant?

Select	Answer
A	The trustee must have an Amateur Extra Class operator license grant
B	The club must be registered with the American Radio Relay League
C	The club must have at least four members
D	All these choices are correct

10. - T2A06

Which of the following is required when making on-the-air test transmissions?

Select	Answer
A	Notify the FCC of the transmissions
B	All these choices are correct
C	Identify the transmitting station
D	Conduct tests only between 10 p.m. and 6 a.m. local time

11. - T2B06

What type of signaling uses pairs of audio tones?

Select	Answer
A	GPRS
B	DTMF
C	D-STAR
D	CTCSS

12. - T2C06

What is the Amateur Radio Emergency Service (ARES)?

Select	Answer
A	A training program that certifies amateur operators for membership in the Radio Amateur Civil Emergency Service
B	A group of licensed amateurs who have voluntarily registered their qualifications and equipment for communications duty in the public service
C	A training program that provides licensing courses for those interested in obtaining an amateur license to use during emergencies
D	A group of licensed amateurs who are members of the military and who voluntarily agreed to provide message handling services in the case of an emergency

13. - T3A04

What happens when antennas at opposite ends of a VHF or UHF line of sight radio link are not using the same polarization?

Select	Answer
A	The modulation sidebands might become inverted
B	Signals have an echo effect
C	Received signal strength is reduced
D	Nothing significant will happen

14. - T3B03

What are the two components of a radio wave?

Select	Answer
A	Impedance and reactance
B	Voltage and current
C	Electric and magnetic fields
D	Ionizing and non-ionizing radiation

15. - T3C08

What causes tropospheric ducting?

Select	Answer
A	Sunspots and solar flares
B	Updrafts from hurricanes and tornadoes
C	Temperature inversions in the atmosphere
D	Discharges of lightning during electrical storms

16. - T4A11

Where should the negative power return of a mobile transceiver be connected in a vehicle?

Select	Answer
A	At the 12 volt battery chassis ground
B	To any metal part of the vehicle
C	At the antenna mount
D	Through the transceiver’s mounting bracket

17. - T4B12

What is the result of tuning an FM receiver above or below a signal’s frequency?

Select	Answer
A	Distortion of the signal’s audio
B	Change in audio pitch
C	Sideband inversion
D	Generation of a heterodyne tone

18. - T5A04

What are the units of electrical resistance?

Select	Answer
A	Mhos
B	Coulombs
C	Siemens
D	Ohms

19. - T5B12

Which is equal to 28400 kHz?

Select	Answer
A	2.800 MHz
B	28.400 MHz
C	28.400 kHz
D	284.00 MHz

20. - T5C02

What is the unit of capacitance?

Select	Answer
A	The ohm
B	The henry
C	The farad
D	The volt

21. - T5D06

What is the resistance of a circuit that draws 4 amperes from a 12-volt source?

Select	Answer
A	16 ohms
B	8 ohms
C	48 ohms
D	3 ohms

22. - T6A06

What type of electrical component stores energy in a magnetic field?

Select	Answer
A	Diode
B	Capacitor
C	Varistor
D	Inductor

23. - T6B08

What does the abbreviation FET stand for?

Select	Answer
A	Free Electron Transmitter
B	Frequency Emission Transmitter
C	Field Effect Transistor
D	Fast Electron Transistor

24. - T6C02

What is component 1 in figure T-1?

Select	Answer
A	Battery
B	Transistor
C	Connector
D	Resistor

25. - T6D03

Which of the following is a reason to use shielded wire?

Select	Answer
A	To couple the wire to other signals
B	To decrease the resistance of DC power connections
C	To increase the current carrying capability of the wire
D	To prevent coupling of unwanted signals to or from the wire

26. - T7A04

Which term describes the ability of a receiver to discriminate between multiple signals?

Select	Answer
A	Selectivity
B	Discrimination ratio
C	Sensitivity
D	Harmonic distortion

27. - T7B02

What would cause a broadcast AM or FM radio to receive an amateur radio transmission unintentionally?

Select	Answer
A	The receiver is unable to reject strong signals outside the AM or FM band
B	The microphone gain of the transmitter is turned up too high
C	The deviation of an FM transmitter is set too low
D	The audio amplifier of the transmitter is overloaded

28. - T7C07

What happens to power lost in a feed line?

Select	Answer
A	It is radiated as harmonics
B	It distorts the signal
C	It is converted into heat
D	It increases the SWR

29. - T7D03

When configured to measure current, how is a multimeter connected to a component?

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

30. - T8A01

Which of the following is a form of amplitude modulation?

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

31. - T8B07

What is Doppler shift in reference to satellite communications?

Select	Answer
A	A mode where the satellite receives signals on one band and transmits on another
B	An observed change in signal frequency caused by relative motion between the satellite and Earth station
C	A change in the satellite orbit
D	A special digital communications mode for some satellites

32. - T8C05

What is a grid locator?

Select	Answer
A	An instrument for radio direction finding
B	A letter-number designator assigned to an azimuth and elevation
C	An instrument for neutralizing a final amplifier
D	A letter-number designator assigned to a geographic location

33. - T8D06

What does the abbreviation "PSK" mean?

Select	Answer
A	Phase Shift Keying
B	Phased Slide Keying
C	Pulse Shift Keying
D	Packet Short Keying

34. - T9A10

In which direction does a half-wave dipole antenna radiate the strongest signal?

Select	Answer
A	Equally in all directions
B	Off the ends of the antenna
C	In the direction of the feed line
D	Broadside to the antenna

35. - T9B12

What is standing wave ratio (SWR)?

Select	Answer
A	The transmitter efficiency ratio
B	A measure of how well a load is matched to a transmission line
C	An indication of the quality of your station’s ground connection
D	The ratio of amplifier power output to input

Figure T-1