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

2. - T0B08

Which is a proper grounding method for a tower?

Select	Answer
A	A connection between the tower base and a cold water pipe
B	A single four-foot ground rod, driven into the ground no more than 12 inches from the base
C	Separate eight-foot ground rods for each tower leg, bonded to the tower and each other
D	A ferrite-core RF choke connected between the tower and ground

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

4. - T1A11

When is willful interference to other amateur radio stations permitted?

Select	Answer
A	To stop another amateur station that is breaking the FCC rules
B	At no time
C	When making short test transmissions
D	At any time, stations in the Amateur Radio Service are not protected from willful interference

5. - T1B05

How may amateurs use the 219 to 220 MHz segment of 1.25 meter band?

Select	Answer
A	Fast-scan television only
B	Fixed digital message forwarding systems only
C	Spread spectrum only
D	Emergency traffic only

6. - T1C11

If your license has expired and is still within the allowable grace period, may you continue to transmit on the amateur radio bands?

Select	Answer
A	Yes, for up to two years
B	Yes, for up to one year
C	Yes, as soon as you apply for renewal
D	No, you must wait until the license has been renewed

7. - T1D02

Under which of the following circumstances are one-way transmissions by an amateur station prohibited?

Select	Answer
A	In all circumstances
B	Broadcasting
C	International Morse Code Practice
D	Telecommand or transmissions of telemetry

8. - T1E11

Who does the FCC presume to be the control operator of an amateur station, unless documentation to the contrary is in the station records?

Select	Answer
A	The station custodian
B	The third party participant
C	The station licensee
D	The person operating the station equipment

9. - T1F05

What method of call sign identification is required for a station transmitting phone signals?

Select	Answer
A	Send the call sign followed by the indicator RPT
B	Send the call sign followed by the indicator R
C	Send the call sign using a CW or phone emission
D	Send the call sign using only a phone emission

10. - T2A12

What should you do before calling CQ?

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

11. - T2B07

How can you join a digital repeater’s “talkgroup”?

Select	Answer
A	Program your radio with the group’s ID or code
B	Register your radio with the local FCC office
C	Sign your call after the courtesy tone
D	Join the repeater owner’s club

12. - T2C10

What information is contained in the preamble of a formal traffic message?

Select	Answer
A	The telephone number of the addressee
B	Information needed to track the message
C	The address of the intended recipient
D	The email address of the originating station

13. - T3A03

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

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

14. - T3B03

What are the two components of a radio wave?

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

15. - T3C01

Why are simplex UHF signals rarely heard beyond their radio horizon?

Select	Answer
A	UHF signals are usually not propagated by the ionosphere
B	They are too weak to go very far
C	FCC regulations prohibit them from going more than 50 miles
D	UHF signals are absorbed by the ionospheric D region

16. - T4A09

How can you determine the length of time that equipment can be powered from a battery?

Select	Answer
A	Divide the battery ampere-hour rating by the average current draw of the equipment
B	Multiply the square of the current rating of the battery by the input resistance of the equipment
C	Multiply the watts per hour consumed by the equipment by the battery power rating
D	Divide the watt-hour rating of the battery by the peak power consumption of the equipment

17. - T4B09

How is a specific group of stations selected on a digital voice transceiver?

Select	Answer
A	By entering the group’s identification code
B	By retrieving the frequencies from transceiver memory
C	By enabling the group’s CTCSS tone
D	By activating automatic identification

18. - T5A10

Which term describes the rate at which electrical energy is used?

Select	Answer
A	Voltage
B	Power
C	Current
D	Resistance

19. - T5B07

Which is equal to 3.525 MHz?

Select	Answer
A	3,525,000 kHz
B	3525 kHz
C	0.003525 kHz
D	35.25 kHz

20. - T5C09

How much power is delivered by a voltage of 13.8 volts DC and a current of 10 amperes?

Select	Answer
A	0.7 watts
B	3.8 watts
C	23.8 watts
D	138 watts

21. - T5D04

What is the resistance of a circuit in which a current of 3 amperes flows when connected to 90 volts?

Select	Answer
A	93 ohms
B	270 ohms
C	3 ohms
D	30 ohms

22. - T6A04

What electrical component stores energy in an electric field?

Select	Answer
A	Varistor
B	Inductor
C	Diode
D	Capacitor

23. - T6B09

What are the names for the electrodes of a diode?

Select	Answer
A	Anode and cathode
B	Source and drain
C	Plus and minus
D	Gate and base

24. - T6C10

What is component 3 in figure T-3?

Select	Answer
A	Variable capacitor
B	Meter
C	Connector
D	Variable inductor

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 increase the current carrying capability of the wire
C	To prevent coupling of unwanted signals to or from the wire
D	To decrease the resistance of DC power connections

26. - T7A01

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

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

27. - T7B10

What might be a problem if you receive a report that your audio signal through an FM repeater is distorted or unintelligible?

Select	Answer
A	Your transmitter is slightly off frequency
B	All these choices are correct
C	You are in a bad location
D	Your batteries are running low

28. - T7C09

Which of the following causes failure of coaxial cables?

Select	Answer
A	Operation at 100% duty cycle for an extended period
B	Moisture contamination
C	Solder flux contamination
D	Rapid fluctuation in transmitter output power

29. - T7D09

What is the characteristic appearance of a cold tin-lead solder joint?

Select	Answer
A	Dark black spots
B	A bright or shiny surface
C	A rough or lumpy surface
D	Excessive solder

30. - T8A11

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

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

31. - T8B06

Which of the following are inputs to a satellite tracking program?

Select	Answer
A	The Keplerian elements
B	The satellite transmitted power
C	The last observed time of zero Doppler shift
D	All these choices are correct

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	All these choices are correct
D	Calibrated SWR meter

33. - T8D04

What type of transmission is indicated by the term "NTSC?"

Select	Answer
A	A frame compression scheme for TV signals
B	A special mode for satellite uplink
C	A Normal Transmission mode in Static Circuit
D	An analog fast-scan color TV signal

34. - T9A04

What is a disadvantage of the short, flexible antenna supplied with most handheld radio transceivers, compared to a full-sized quarter-wave antenna?

Select	Answer
A	It transmits only circularly polarized signals
B	It has low efficiency
C	All these choices are correct
D	It is mechanically fragile

35. - T9B11

Which of the following types of feed line has the lowest loss at VHF and UHF?

Select	Answer
A	50-ohm flexible coax
B	Air-insulated hardline
C	75-ohm flexible coax
D	Multi-conductor unbalanced cable

Figure T-3