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	Touching both terminals with the hands can cause electrical shock
B	RF emissions from a nearby transmitter can cause the electrolyte to emit poison gas
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	Insulate the base of the tower to avoid lightning strikes
B	Look for and stay clear of any overhead electrical wires
C	Wear a ground strap connected to your wrist at all times
D	All these choices are correct

3. - T0C12

How does RF radiation differ from ionizing radiation (radioactivity)?

Select	Answer
A	RF radiation can only be detected with an RF dosimeter
B	RF radiation does not have sufficient energy to cause chemical changes in cells and damage DNA
C	RF radiation is perfectly safe
D	RF radiation is limited in range to a few feet

4. - T1A05

What proves that the FCC has issued an operator/primary license grant?

Select	Answer
A	A printed copy of the certificate of successful completion of examination
B	The license appears in the FCC ULS database
C	An email notification from the NCVEC granting the license
D	All these choices are correct

5. - T1B12

Except for some specific restrictions, what is the maximum peak envelope power output for Technician class operators using frequencies above 30 MHz?

Select	Answer
A	500 watts
B	50 watts
C	1500 watts
D	100 watts

6. - T1C02

Who may select a desired call sign under the vanity call sign rules?

Select	Answer
A	Only a licensed amateur who has been licensed continuously for more than 10 years
B	Any licensed amateur
C	Only a licensed amateur with an Amateur Extra Class license
D	Only a licensed amateur with a General or Amateur Extra Class license

7. - T1D08

In which of the following circumstances may the control operator of an amateur station receive compensation for operating that station?

Select	Answer
A	All these choices are correct
B	When the communication is related to the sale of amateur equipment by the control operator's employer
C	When the communication is made to obtain emergency information for a local broadcast station
D	When the communication is incidental to classroom instruction at an educational institution

8. - T1E07

When the control operator is not the station licensee, who is responsible for the proper operation of the station?

Select	Answer
A	Only the station licensee
B	All licensed amateurs who are present at the operation
C	Only the control operator
D	The control operator and the station licensee

9. - T1F11

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

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

10. - T2A11

What term describes an amateur station that is transmitting and receiving on the same frequency?

Select	Answer
A	Multiplex
B	Full duplex
C	Simplex
D	Diplex

11. - T2B06

What type of signaling uses pairs of audio tones?

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

12. - T2C10

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

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

13. - T3A03

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

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

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 energy in the magnetic field to the energy in the electric field
C	The ratio of the velocity to the wavelength
D	The orientation of the electric field

15. - T3C03

What is a characteristic of VHF signals received via auroral backscatter?

Select	Answer
A	They are often received from 10,000 miles or more
B	They are generally strongest when your antenna is aimed west
C	They are distorted and signal strength varies considerably
D	They occur only during winter nighttime hours

16. - T4A06

What signals are used in a computer-radio interface for digital mode operation?

Select	Answer
A	NMEA GPS location and DC power
B	Antenna and RF power
C	Receive and transmit mode, status, and location
D	Receive audio, transmit audio, and transmitter keying

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 activating automatic identification
D	By enabling the group’s CTCSS tone

18. - T5A08

Which of the following is a good electrical insulator?

Select	Answer
A	Mercury
B	Glass
C	Aluminum
D	Copper

19. - T5B08

Which is equal to 1,000,000 picofarads?

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

20. - T5C08

What is the formula used to calculate electrical power (P) in a DC circuit?

Select	Answer
A	P = E – I
B	P = I  E
C	P = E / I
D	P = I + E

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	270 ohms
B	3 ohms
C	93 ohms
D	30 ohms

22. - T6A12

What type of switch is represented by component 3 in figure T-2?

Select	Answer
A	Single-pole double-throw
B	Single-pole single-throw
C	Double-pole single-throw
D	Double-pole double-throw

23. - T6B02

What electronic component allows current to flow in only one direction?

Select	Answer
A	Fuse
B	Driven element
C	Diode
D	Resistor

24. - T6C04

What is component 3 in figure T-1?

Select	Answer
A	Resistor
B	Lamp
C	Transistor
D	Ground symbol

25. - T6D01

Which of the following devices or circuits changes an alternating current into a varying direct current signal?

Select	Answer
A	Transformer
B	Rectifier
C	Reflector
D	Amplifier

26. - T7A03

Which of the following is used to convert a signal from one frequency to another?

Select	Answer
A	Amplifier
B	Phase splitter
C	Mixer
D	Inverter

27. - T7B08

What should you do if something in a neighbor’s home is causing harmful interference to your amateur station?

Select	Answer
A	Politely inform your neighbor that FCC rules prohibit the use of devices that cause interference
B	Work with your neighbor to identify the offending device
C	All these choices are correct
D	Make sure your station meets the standards of good amateur practice

28. - T7C06

What does an SWR reading of 4:1 indicate?

Select	Answer
A	Good impedance match
B	Impedance mismatch
C	Loss of -4 dB
D	Gain of +4 dB

29. - T7D08

Which of the following types of solder should not be used for radio and electronic applications?

Select	Answer
A	Acid-core solder
B	Tin-copper solder
C	Lead-tin solder
D	Rosin-core solder

30. - T8A11

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

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

31. - T8B09

What causes spin fading of satellite signals?

Select	Answer
A	Rotation of the satellite and its antennas
B	Doppler shift of the received signal
C	Interfering signals within the satellite uplink band
D	Circular polarized noise interference radiated from the sun

32. - T8C04

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

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

33. - T8D01

Which of the following is a digital communications mode?

Select	Answer
A	All these choices are correct
B	Packet radio
C	FT8
D	IEEE 802.11

34. - T9A08

What is the approximate length, in inches, of a quarter-wavelength vertical antenna for 146 MHz?

Select	Answer
A	19
B	12
C	50
D	112

35. - T9B10

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

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

Figure T-2

Figure T-1