US Amateur Radio - Technician (Element 2, 2022-2026) Practice Test

Anonymous User

US Amateur Radio - Technician (Element 2, 2022-2026) Practice Test

Logging in (or registering) will help the system to select questions that you need to focus on.

1. - T0A08

Where should a fuse or circuit breaker be installed in a 120V AC power circuit?

Select	Answer
A	In parallel with the hot conductor only
B	In series with the hot and neutral conductors
C	In series with the hot conductor only
D	In parallel with the hot and neutral conductors

2. - T0B06

What is the minimum safe distance from a power line to allow when installing an antenna?

Select	Answer
A	Enough so that if the antenna falls, no part of it can come closer than 10 feet to the power wires
B	The height of the power line above ground
C	1/2 wavelength at the operating frequency
D	Add the height of the antenna to the height of the power line and multiply by a factor of 1.5

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

4. - T1A10

What is the Radio Amateur Civil Emergency Service (RACES)?

Select	Answer
A	A radio service using amateur stations for emergency management or civil defense communications
B	All these choices are correct
C	An emergency service using amateur operators certified by a civil defense organization as being enrolled in that organization
D	A radio service using amateur frequencies for emergency management or civil defense communications

5. - T1B02

Which amateurs may contact the International Space Station (ISS) on VHF bands?

Select	Answer
A	Any amateur holding a Technician class or higher license
B	Any amateur holding a Technician class or higher license who has applied for and received approval from NASA
C	Any amateur holding a General class or higher license
D	Any amateur holding a General class or higher license who has applied for and received approval from NASA

6. - T1C09

What is the grace period for renewal if an amateur license expires?

Select	Answer
A	Three years
B	Five years
C	Ten years
D	Two years

7. - T1D05

When may amateur radio operators use their stations to notify other amateurs of the availability of equipment for sale or trade?

Select	Answer
A	Never
B	When selling amateur radio equipment and not on a regular basis
C	When no profit is made on the sale
D	When the equipment is not the personal property of either the station licensee, or the control operator, or their close relatives

8. - T1E05

What is an amateur station’s control point?

Select	Answer
A	The location at which the control operator function is performed
B	The mailing address of the station licensee
C	The location of the station’s transmitting antenna
D	The location of the station’s transmitting apparatus

9. - T1F01

When must the station and its records be available for FCC inspection?

Select	Answer
A	Only when presented with a valid warrant by an FCC official or government agent
B	At any time ten days after notification by the FCC of such an inspection
C	At any time after written notification by the FCC of such inspection
D	At any time upon request by an FCC representative

10. - T2A09

Which of the following indicates that a station is listening on a repeater and looking for a contact?

Select	Answer
A	The repeater call sign followed by the station’s call sign
B	“QSY” followed by your call sign
C	“CQ CQ” followed by the repeater’s call sign
D	The station’s call sign followed by the word “monitoring”

11. - T2B01

How is a VHF/UHF transceiver’s “reverse” function used?

Select	Answer
A	To increase power output
B	To listen on a repeater’s output frequency
C	To listen on a repeater’s input frequency
D	To reduce power output

12. - T2C10

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

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

13. - T3A02

What is the effect of vegetation on UHF and microwave signals?

Select	Answer
A	Knife-edge diffraction
B	Polarization rotation
C	Absorption
D	Amplification

14. - T3B06

What is the formula for converting frequency to approximate wavelength in meters?

Select	Answer
A	Wavelength in meters equals frequency in megahertz divided by 300
B	Wavelength in meters equals frequency in hertz multiplied by 300
C	Wavelength in meters equals 300 divided by frequency in megahertz
D	Wavelength in meters equals frequency in hertz divided by 300

15. - T3C08

What causes tropospheric ducting?

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

16. - T4A08

Which of the following conductors is preferred for bonding at RF?

Select	Answer
A	Flat copper strap
B	Twisted-pair cable
C	Copper braid removed from coaxial cable
D	Steel wire

17. - T4B07

What does a DMR “code plug” contain?

Select	Answer
A	The codec for digitizing audio
B	Your call sign in CW for automatic identification
C	Access information for repeaters and talkgroups
D	The DMR software version

18. - T5A01

Electrical current is measured in which of the following units?

Select	Answer
A	Watts
B	Ohms
C	Volts
D	Amperes

19. - T5B06

Which is equal to 3000 milliamperes?

Select	Answer
A	0.003 amperes
B	0.3 amperes
C	3,000,000 amperes
D	3 amperes

20. - T5C07

What is the abbreviation for megahertz?

Select	Answer
A	Mhz
B	MHz
C	mh
D	MH

21. - T5D14

In which type of circuit is voltage the same across all components?

Select	Answer
A	Parallel
B	Branch
C	Resonant
D	Series

22. - T6A04

What electrical component stores energy in an electric field?

Select	Answer
A	Capacitor
B	Inductor
C	Diode
D	Varistor

23. - T6B08

What does the abbreviation FET stand for?

Select	Answer
A	Frequency Emission Transmitter
B	Fast Electron Transistor
C	Field Effect Transistor
D	Free Electron Transmitter

24. - T6C05

What is component 4 in figure T-1?

Select	Answer
A	Ground symbol
B	Resistor
C	Transistor
D	Battery

25. - T6D02

What is a relay?

Select	Answer
A	An electrically-controlled switch
B	An inverting amplifier
C	A current controlled amplifier
D	A pass transistor

26. - T7A08

Which of the following describes combining speech with an RF carrier signal?

Select	Answer
A	Low-pass filtering
B	Impedance matching
C	Modulation
D	Oscillation

27. - T7B05

How can fundamental overload of a non-amateur radio or TV receiver by an amateur signal be reduced or eliminated?

Select	Answer
A	Block the amateur signal with a filter at the antenna input of the affected receiver
B	Switch the transmitter from FM to SSB
C	Switch the transmitter to a narrow-band mode
D	Block the interfering signal with a filter on the amateur transmitter

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	1:1
C	Full Scale
D	Zero

29. - T7D06

Which of the following can damage a multimeter?

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

30. - T8A01

Which of the following is a form of amplitude modulation?

Select	Answer
A	Phase shift keying (PSK)
B	Single sideband
C	Spread spectrum
D	Packet radio

31. - T8B04

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

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

32. - T8C02

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

Select	Answer
A	A directional antenna
B	All these choices are correct
C	A calibrated noise bridge
D	Calibrated SWR meter

33. - T8D02

What is a “talkgroup” on a DMR repeater?

Select	Answer
A	A net that meets at a specified time
B	A group of operators sharing common interests
C	A protocol that increases the signal-to-noise ratio when multiple repeaters are linked together
D	A way for groups of users to share a channel at different times without hearing other users on the channel

34. - T9A05

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

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

35. - T9B12

What is standing wave ratio (SWR)?

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

Figure T-1