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

2. - T0B03

Under what circumstances is it safe to climb a tower without a helper or observer?

Select	Answer
A	Never
B	When no mechanical work is being performed
C	When the work being done is not more than 20 feet above the ground
D	When no electrical work is being performed

3. - T0C04

What factors affect the RF exposure of people near an amateur station antenna?

Select	Answer
A	Radiation pattern of the antenna
B	All these choices are correct
C	Frequency and power level of the RF field
D	Distance from the antenna to a person

4. - T1A04

How many operator/primary station license grants may be held by any one person?

Select	Answer
A	One
B	No more than two
C	One for each permanent station location from which the person plans to operate
D	One for each band on which the person plans to operate

5. - T1B05

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

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

6. - T1C05

Which of the following is a valid Technician class call sign format?

Select	Answer
A	KA1X
B	All these choices are correct
C	W1XX
D	KF1XXX

7. - T1D07

What types of amateur stations can automatically retransmit the signals of other amateur stations?

Select	Answer
A	Repeater, auxiliary, or space stations
B	Beacon, repeater, or space stations
C	Earth, repeater, or space stations
D	Auxiliary, beacon, or Earth stations

8. - T1E03

Who must designate the station control operator?

Select	Answer
A	The frequency coordinator
B	Any licensed operator
C	The station licensee
D	The FCC

9. - T1F04

What language may you use for identification when operating in a phone sub-band?

Select	Answer
A	English
B	English, French, or Spanish
C	Any language recognized by the United Nations
D	Any language recognized by the ITU

10. - T2A08

What is the meaning of the procedural signal “CQ”?

Select	Answer
A	Calling any station
B	Only the called station should transmit
C	Test transmission, no reply expected
D	Call on the quarter hour

11. - T2B10

Which Q signal indicates that you are receiving interference from other stations?

Select	Answer
A	QRN
B	QTH
C	QRM
D	QSB

12. - T2C11

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

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

13. - T3A06

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

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

14. - T3B09

What frequency range is referred to as UHF?

Select	Answer
A	300 to 3000 kHz
B	30 to 300 MHz
C	30 to 300 kHz
D	300 to 3000 MHz

15. - T3C01

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

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

16. - T4A07

Which of the following connections is made between a computer and a transceiver to use computer software when operating digital modes?

Select	Answer
A	Computer “line in” to transceiver push-to-talk
B	Computer “line out” to transceiver push-to-talk
C	Computer “line out” to transceiver speaker connector
D	Computer “line in” to transceiver speaker connector

17. - T4B03

How is squelch adjusted so that a weak FM signal can be heard?

Select	Answer
A	Turn on the anti-squelch function
B	Enable squelch enhancement
C	Set the squelch threshold so that receiver output audio is on all the time
D	Turn up the audio level until it overcomes the squelch threshold

18. - T5A06

What is the unit of frequency?

Select	Answer
A	Henry
B	Farad
C	Hertz
D	Tesla

19. - T5B10

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

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

20. - T5C02

What is the unit of capacitance?

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

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	3 ohms
B	270 ohms
C	93 ohms
D	30 ohms

22. - T6A09

What electrical component is used to protect other circuit components from current overloads?

Select	Answer
A	Varactor
B	All these choices are correct
C	Thyratron
D	Fuse

23. - T6B07

What causes a light-emitting diode (LED) to emit light?

Select	Answer
A	Forward current
B	Reverse current
C	Inductively-coupled RF signal
D	Capacitively-coupled RF signal

24. - T6C02

What is component 1 in figure T-1?

Select	Answer
A	Resistor
B	Transistor
C	Connector
D	Battery

25. - T6D05

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

Select	Answer
A	Regulator
B	Oscillator
C	Filter
D	Phase inverter

26. - T7A10

What device increases the transmitted output power from a transceiver?

Select	Answer
A	An impedance network
B	An RF power amplifier
C	All these choices are correct
D	A voltage divider

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	Your batteries are running low
C	You are in a bad location
D	All these choices are correct

28. - T7C07

What happens to power lost in a feed line?

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

29. - T7D06

Which of the following can damage a multimeter?

Select	Answer
A	Attempting to measure voltage when using the resistance setting
B	Not allowing it to warm up properly
C	Attempting to measure resistance using the voltage setting
D	Failing to connect one of the probes to ground

30. - T8A12

Which of the following is a disadvantage of FM compared with single sideband?

Select	Answer
A	All these choices are correct
B	FM signals are harder to tune
C	Only one signal can be received at a time
D	Voice quality is poorer

31. - T8B07

What is Doppler shift in reference to satellite communications?

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

32. - T8C03

What operating activity involves contacting as many stations as possible during a specified period?

Select	Answer
A	Simulated emergency exercises
B	Contesting
C	Net operations
D	Public service events

33. - T8D08

Which of the following is included in packet radio transmissions?

Select	Answer
A	All these choices are correct
B	A header that contains the call sign of the station to which the information is being sent
C	A check sum that permits error detection
D	Automatic repeat request in case of error

34. - T9A05

Which of the following increases the resonant frequency of a dipole antenna?

Select	Answer
A	Shortening it
B	Adding capacitive loading to the ends of the radiating wires
C	Lengthening it
D	Inserting coils in series with radiating wires

35. - T9B11

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

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

Figure T-1