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

2. - T0B03

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

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

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 is limited in range to a few feet
C	RF radiation is perfectly safe
D	RF radiation does not have sufficient energy to cause chemical changes in cells and damage DNA

4. - T1A05

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

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

5. - T1B06

On which HF bands does a Technician class operator have phone privileges?

Select	Answer
A	None
B	10 meter band only
C	80 meter, 40 meter, 15 meter, and 10 meter bands
D	30 meter band only

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	Communications incidental to conducting business or remarks of a personal nature
C	Only communications incidental to contest exchanges; all other communications are prohibited
D	Any communications that would be permitted by an international broadcast station

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

8. - T1E02

Who may be the control operator of a station communicating through an amateur satellite or space station?

Select	Answer
A	Only an Amateur Extra Class operator
B	A General class or higher licensee with a satellite operator certification
C	Any amateur allowed to transmit on the satellite uplink frequency
D	Only an Amateur Extra Class operator who is also an AMSAT member

9. - T1F03

When are you required to transmit your assigned call sign?

Select	Answer
A	At the beginning of each contact, and every 10 minutes thereafter
B	At least every 15 minutes during and at the end of a communication
C	At least every 10 minutes during and at the end of a communication
D	At least once during each transmission

10. - T2A12

What should you do before calling CQ?

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

11. - T2B13

What is the purpose of a squelch function?

Select	Answer
A	Reduce a CW transmitter's key clicks
B	Reduce interference from impulse noise
C	Mute the receiver audio when a signal is not present
D	Eliminate parasitic oscillations in an RF amplifier

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	All these choices are correct
D	Choose the regular net meeting time and frequency

13. - T3A07

What weather condition might decrease range at microwave frequencies?

Select	Answer
A	High winds
B	Precipitation
C	Low barometric pressure
D	Colder temperatures

14. - T3B10

What frequency range is referred to as HF?

Select	Answer
A	30 to 300 MHz
B	3 to 30 MHz
C	300 to 3000 MHz
D	300 to 3000 kHz

15. - T3C08

What causes tropospheric ducting?

Select	Answer
A	Updrafts from hurricanes and tornadoes
B	Temperature inversions in the atmosphere
C	Sunspots and solar flares
D	Discharges of lightning during electrical storms

16. - T4A04

How are the transceiver audio input and output connected in a station configured to operate using FT8?

Select	Answer
A	To a computer connected to the FT8converter.com website
B	To the audio input and output of a computer running WSJT-X software
C	To a computer running a terminal program and connected to a terminal node controller unit
D	To an FT8 conversion unit, a keyboard, and a computer monitor

17. - T4B05

What does the scanning function of an FM transceiver do?

Select	Answer
A	Checks for messages left on a digital bulletin board
B	Tunes through a range of frequencies to check for activity
C	Prevents interference to nearby repeaters
D	Checks incoming signal deviation

18. - T5A07

Why are metals generally good conductors of electricity?

Select	Answer
A	They have relatively high density
B	They have many free protons
C	All these choices are correct
D	They have many free electrons

19. - T5B04

Which is equal to one microvolt?

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

20. - T5C07

What is the abbreviation for megahertz?

Select	Answer
A	Mhz
B	MHz
C	MH
D	mh

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	18 ohms
B	8 ohms
C	0.125 ohms
D	13.5 ohms

22. - T6A09

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

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

23. - T6B04

Which of the following components can consist of three regions of semiconductor material?

Select	Answer
A	Pentagrid converter
B	Transistor
C	Alternator
D	Triode

24. - T6C08

What is component 9 in figure T-2?

Select	Answer
A	Variable transformer
B	Variable inductor
C	Variable capacitor
D	Variable resistor

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. - T7A09

What is the function of the SSB/CW-FM switch on a VHF power amplifier?

Select	Answer
A	Set the amplifier for proper operation in the selected mode
B	Change the frequency range of the amplifier to operate in the proper segment of the band
C	Reduce the received signal noise
D	Change the mode of the transmitted signal

27. - T7B03

Which of the following can cause radio frequency interference?

Select	Answer
A	Harmonics
B	Fundamental overload
C	All these choices are correct
D	Spurious emissions

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	A frequency counter
C	An antenna analyzer
D	A VTVM

29. - T7D08

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

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

30. - T8A02

What type of modulation is commonly used for VHF packet radio transmissions?

Select	Answer
A	PSK
B	AM
C	FM or PM
D	SSB

31. - T8B04

What mode of transmission is commonly used by amateur radio satellites?

Select	Answer
A	FM
B	CW/data
C	All these choices are correct
D	SSB

32. - T8C03

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

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

33. - T8D01

Which of the following is a digital communications mode?

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

34. - T9A10

In which direction does a half-wave dipole antenna radiate the strongest signal?

Select	Answer
A	Broadside to the antenna
B	Off the ends of the antenna
C	Equally in all directions
D	In the direction of the feed line

35. - T9B12

What is standing wave ratio (SWR)?

Select	Answer
A	A measure of how well a load is matched to a transmission line
B	An indication of the quality of your station’s ground connection
C	The transmitter efficiency ratio
D	The ratio of amplifier power output to input

Figure T-2