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. - T0A05

Why should a 5-ampere fuse never be replaced with a 20-ampere fuse?

Select	Answer
A	All these choices are correct
B	The larger fuse would be likely to blow because it is rated for higher current
C	Excessive current could cause a fire
D	The power supply ripple would greatly increase

2. - T0B06

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

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

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. - T1A09

Who selects a Frequency Coordinator?

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

5. - T1B09

Why should you not set your transmit frequency to be exactly at the edge of an amateur band or sub-band?

Select	Answer
A	All these choices are correct
B	To allow for transmitter frequency drift
C	So that modulation sidebands do not extend beyond the band edge
D	To allow for calibration error in the transmitter frequency display

6. - T1C03

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

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

7. - T1D10

How does the FCC define broadcasting for the Amateur Radio Service?

Select	Answer
A	Any transmission made by the licensed station
B	Two-way transmissions by amateur stations
C	Transmission of messages directed only to amateur operators
D	Transmissions intended for reception by the general public

8. - T1E05

What is an amateur station’s control point?

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

9. - T1F01

When must the station and its records be available for FCC inspection?

Select	Answer
A	At any time after written notification by the FCC of such inspection
B	Only when presented with a valid warrant by an FCC official or government agent
C	At any time ten days after notification by the FCC of such an inspection
D	At any time upon request by an FCC representative

10. - T2A12

What should you do before calling CQ?

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

11. - T2B08

Which of the following applies when two stations transmitting on the same frequency interfere with each other?

Select	Answer
A	Both stations should choose another frequency to avoid conflict
B	The stations should negotiate continued use of the frequency
C	Use subaudible tones so both stations can share the frequency
D	Interference is inevitable, so no action is required

12. - T2C02

Which of the following are typical duties of a Net Control Station?

Select	Answer
A	Ensure that all stations checking into the net are properly licensed for operation on the net frequency
B	Call the net to order and direct communications between stations checking in
C	Choose the regular net meeting time and frequency
D	All these choices are correct

13. - T3A12

What is the effect of fog and rain on signals in the 10 meter and 6 meter bands?

Select	Answer
A	There is little effect
B	Absorption
C	Range increase
D	Deflection

14. - T3B11

What is the approximate velocity of a radio wave in free space?

Select	Answer
A	150,000 miles per hour
B	150,000 meters per second
C	300,000,000 miles per hour
D	300,000,000 meters per second

15. - T3C02

What is a characteristic of HF communication compared with communications on VHF and higher frequencies?

Select	Answer
A	HF accommodates wider bandwidth signals
B	Long-distance ionospheric propagation is far more common on HF
C	There is less atmospheric interference (static) on HF
D	HF antennas are generally smaller

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	An interlock to prevent unauthorized use of a radio
D	A device for voice activated switching from receive to transmit

17. - T4B06

Which of the following controls could be used if the voice pitch of a single-sideband signal returning to your CQ call seems too high or low?

Select	Answer
A	The RIT or Clarifier
B	The tone squelch
C	The AGC or limiter
D	The bandwidth selection

18. - T5A06

What is the unit of frequency?

Select	Answer
A	Farad
B	Hertz
C	Henry
D	Tesla

19. - T5B08

Which is equal to 1,000,000 picofarads?

Select	Answer
A	1 microfarad
B	1,000,000,000 microfarads
C	1000 microfarads
D	0.001 microfarads

20. - T5C03

What describes the ability to store energy in a magnetic field?

Select	Answer
A	Resistance
B	Capacitance
C	Admittance
D	Inductance

21. - T5D08

What is the current through a 100-ohm resistor connected across 200 volts?

Select	Answer
A	100 amperes
B	20,000 amperes
C	2 amperes
D	0.5 amperes

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	Thyratron
D	Varactor

23. - T6B10

Which of the following can provide power gain?

Select	Answer
A	Resistor
B	Transformer
C	Reactor
D	Transistor

24. - T6C05

What is component 4 in figure T-1?

Select	Answer
A	Battery
B	Ground symbol
C	Resistor
D	Transistor

25. - T6D08

Which of the following is combined with an inductor to make a resonant circuit?

Select	Answer
A	Potentiometer
B	Resistor
C	Zener diode
D	Capacitor

26. - T7A01

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

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

27. - T7B01

What can you do if you are told your FM handheld or mobile transceiver is over-deviating?

Select	Answer
A	Let the transceiver cool off
B	Change to a higher power level
C	Talk louder into the microphone
D	Talk farther away from the microphone

28. - T7C02

Which of the following is used to determine if an antenna is resonant at the desired operating frequency?

Select	Answer
A	A Q meter
B	An antenna analyzer
C	A frequency counter
D	A VTVM

29. - T7D04

Which instrument is used to measure electric current?

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

30. - T8A11

What is the approximate bandwidth required to transmit a CW signal?

Select	Answer
A	150 Hz
B	2.4 kHz
C	1000 Hz
D	15 kHz

31. - T8B02

What is the impact of using excessive effective radiated power on a satellite uplink?

Select	Answer
A	Possibility of commanding the satellite to an improper mode
B	Overloading the satellite batteries
C	Blocking access by other users
D	Possibility of rebooting the satellite control computer

32. - T8C02

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

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

33. - T8D02

What is a “talkgroup” on a DMR repeater?

Select	Answer
A	A net that meets at a specified time
B	A protocol that increases the signal-to-noise ratio when multiple repeaters are linked together
C	A way for groups of users to share a channel at different times without hearing other users on the channel
D	A group of operators sharing common interests

34. - T9A02

Which of the following describes a type of antenna loading?

Select	Answer
A	Strengthening the radiating elements of a beam antenna to better resist wind damage
B	Installing a spring in the base of a mobile vertical antenna to make it more flexible
C	Electrically lengthening by inserting inductors in radiating elements
D	Inserting a resistor in the radiating portion of the antenna to make it resonant

35. - T9B03

Why is coaxial cable the most common feed line for amateur radio antenna systems?

Select	Answer
A	It has less loss than any other type of feed line
B	It is easy to use and requires few special installation considerations
C	It can handle more power than any other type of feed line
D	It is less expensive than any other type of feed line

Figure T-1