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

3. - T0C07

What hazard is created by touching an antenna during a transmission?

Select	Answer
A	RF burn to skin
B	All these choices are correct
C	Radiation poisoning
D	Electrocution

4. - T1A11

When is willful interference to other amateur radio stations permitted?

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

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

6. - T1C06

From which of the following locations may an FCC-licensed amateur station transmit?

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

7. - T1D11

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

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

8. - T1E08

Which of the following is an example of automatic control?

Select	Answer
A	Repeater operation
B	Using a computer or other device to identify automatically
C	Using a computer or other device to send CW automatically
D	Controlling a station over the internet

9. - T1F02

How often must you identify with your FCC-assigned call sign when using tactical call signs such as “Race Headquarters”?

Select	Answer
A	Never, the tactical call is sufficient
B	At the end of every transmission
C	Once during every hour
D	At the end of each communication and every ten minutes during a communication

10. - T2A04

What is an appropriate way to call another station on a repeater if you know the other station's call sign?

Select	Answer
A	Wait for the station to call CQ, then answer
B	Say "CQ" three times, then the other station's call sign
C	Say "break, break," then say the station's call sign
D	Say the station's call sign, then identify with your call sign

11. - T2B03

Which of the following describes a linked repeater network?

Select	Answer
A	A network of repeaters in which signals received by one repeater are transmitted by all the repeaters in the network
B	Multiple repeaters with the same control operator
C	A system of repeaters linked by APRS
D	A single repeater with more than one receiver

12. - T2C09

Are amateur station control operators ever permitted to operate outside the frequency privileges of their license class?

Select	Answer
A	Yes, but only when part of a FEMA emergency plan
B	Yes, but only in situations involving the immediate safety of human life or protection of property
C	No
D	Yes, but only when part of a RACES emergency plan

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	Right-hand circular
C	Vertical
D	Horizontal

14. - T3B09

What frequency range is referred to as UHF?

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

15. - T3C04

Which of the following types of propagation is most commonly associated with occasional strong signals on the 10, 6, and 2 meter bands from beyond the radio horizon?

Select	Answer
A	Backscatter
B	Sporadic E
C	D region absorption
D	Gray-line propagation

16. - T4A03

Why are short, heavy-gauge wires used for a transceiver’s DC power connection?

Select	Answer
A	All these choices are correct
B	To avoid RF interference
C	To provide a good counterpoise for the antenna
D	To minimize voltage drop when transmitting

17. - T4B09

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

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

18. - T5A08

Which of the following is a good electrical insulator?

Select	Answer
A	Copper
B	Mercury
C	Glass
D	Aluminum

19. - T5B03

Which is equal to one kilovolt?

Select	Answer
A	One one-thousandth of a volt
B	One thousand volts
C	One million volts
D	One hundred volts

20. - T5C12

What is impedance?

Select	Answer
A	The Q or Quality Factor of a component
B	The opposition to AC current flow
C	The power handling capability of a component
D	The inverse of resistance

21. - T5D05

What is the resistance of a circuit for which the applied voltage is 12 volts and the current flow is 1.5 amperes?

Select	Answer
A	0.125 ohms
B	13.5 ohms
C	18 ohms
D	8 ohms

22. - T6A12

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

Select	Answer
A	Single-pole double-throw
B	Double-pole single-throw
C	Single-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. - T6C02

What is component 1 in figure T-1?

Select	Answer
A	Transistor
B	Battery
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. - T7A07

What is the function of a transceiver’s PTT input?

Select	Answer
A	Input for a preamplifier tuning tone
B	Provides a transmit tuning tone when grounded
C	Switches transceiver from receive to transmit when grounded
D	Input for a key used to send CW

27. - T7B09

What should be the first step to resolve non-fiber optic cable TV interference caused by your amateur radio transmission?

Select	Answer
A	Be sure all TV feed line coaxial connectors are installed properly
B	Add a low-pass filter to the TV antenna input
C	Add a preamplifier to the TV antenna input
D	Add a high-pass filter to the TV antenna input

28. - T7C04

What reading on an SWR meter indicates a perfect impedance match between the antenna and the feed line?

Select	Answer
A	50:50
B	Zero
C	1:1
D	Full Scale

29. - T7D10

What reading indicates that an ohmmeter is connected across a large, discharged capacitor?

Select	Answer
A	Alternating between open and short circuit
B	Steady full-scale reading
C	Decreasing resistance with time
D	Increasing resistance with time

30. - T8A06

Which sideband is normally used for 10 meter HF, VHF, and UHF single-sideband communications?

Select	Answer
A	Suppressed sideband
B	Inverted sideband
C	Lower sideband
D	Upper sideband

31. - T8B06

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

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

32. - T8C02

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

Select	Answer
A	All these choices are correct
B	A directional antenna
C	A calibrated noise bridge
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	An analog fast-scan color TV signal
C	A Normal Transmission mode in Static Circuit
D	A special mode for satellite uplink

34. - T9A09

What is the approximate length, in inches, of a half-wavelength 6 meter dipole antenna?

Select	Answer
A	236
B	50
C	112
D	6

35. - T9B02

What is the most common impedance of coaxial cables used in amateur radio?

Select	Answer
A	12 ohms
B	50 ohms
C	600 ohms
D	8 ohms

Figure T-2

Figure T-1