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. - T0A07

Where should a lightning arrester be installed in a coaxial feed line?

Select	Answer
A	At the ac power service panel
B	At the antenna feed point
C	On a grounded panel near where feed lines enter the building
D	At the output connector of a transceiver

2. - T0B09

Why should you avoid attaching an antenna to a utility pole?

Select	Answer
A	The antenna could contact high-voltage power lines
B	The 60 Hz radiations from the feed line may increase the SWR
C	All these choices are correct
D	The antenna will not work properly because of induced voltages

3. - T0C12

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

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

4. - T1A07

What is the FCC Part 97 definition of a space station?

Select	Answer
A	A manned satellite orbiting Earth
B	Any satellite orbiting Earth
C	An amateur station located more than 50 km above Earth's surface
D	An amateur station using amateur radio satellites for relay of signals

5. - T1B07

Which of the following VHF/UHF band segments are limited to CW only?

Select	Answer
A	All these choices are correct
B	219 MHz to 220 MHz and 420.0 MHz to 420.1 MHz
C	902.0 MHz to 902.1 MHz
D	50.0 MHz to 50.1 MHz and 144.0 MHz to 144.1 MHz

6. - T1C11

If your license has expired and is still within the allowable grace period, may you continue to transmit on the amateur radio bands?

Select	Answer
A	Yes, for up to one year
B	Yes, as soon as you apply for renewal
C	No, you must wait until the license has been renewed
D	Yes, for up to two years

7. - T1D09

When may amateur stations transmit information in support of broadcasting, program production, or news gathering, assuming no other means is available?

Select	Answer
A	When such communications are directly related to the immediate safety of human life or protection of property
B	Where noncommercial programming is gathered and supplied exclusively to the National Public Radio network
C	When broadcasting communications to or from the space shuttle
D	Never

8. - T1E01

When may an amateur station transmit without a control operator?

Select	Answer
A	When the station licensee is away and another licensed amateur is using the station
B	Never
C	When the transmitting station is an auxiliary station
D	When using automatic control, such as in the case of a repeater

9. - T1F11

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

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

10. - T2A12

What should you do before calling CQ?

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

11. - T2B09

Why are simplex channels designated in the VHF/UHF band plans?

Select	Answer
A	So stations within range of each other can communicate without tying up a repeater
B	So stations with simple transmitters can access the repeater without automated offset
C	For contest operation
D	For working DX only

12. - T2C01

When do FCC rules NOT apply to the operation of an amateur station?

Select	Answer
A	When operating under special FEMA rules
B	When operating a RACES station
C	When operating under special ARES rules
D	FCC rules always apply

13. - T3A01

Why do VHF signal strengths sometimes vary greatly when the antenna is moved only a few feet?

Select	Answer
A	Multipath propagation cancels or reinforces signals
B	All these choices are correct
C	The signal path encounters different concentrations of water vapor
D	VHF ionospheric propagation is very sensitive to path length

14. - T3B04

What is the velocity of a radio wave traveling through free space?

Select	Answer
A	Speed that increases as the frequency increases
B	Speed of sound
C	Speed of light
D	Speed inversely proportional to its wavelength

15. - T3C03

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

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

16. - T4A01

Which of the following is an appropriate power supply rating for a typical 50 watt output mobile FM transceiver?

Select	Answer
A	24.0 volts at 12 amperes
B	13.8 volts at 4 amperes
C	13.8 volts at 12 amperes
D	24.0 volts at 4 amperes

17. - T4B11

Which of the following must be programmed into a D-STAR digital transceiver before transmitting?

Select	Answer
A	All these choices are correct
B	Your output power
C	Your call sign
D	The codec type being used

18. - T5A04

What are the units of electrical resistance?

Select	Answer
A	Mhos
B	Coulombs
C	Siemens
D	Ohms

19. - T5B07

Which is equal to 3.525 MHz?

Select	Answer
A	35.25 kHz
B	3,525,000 kHz
C	0.003525 kHz
D	3525 kHz

20. - T5C10

How much power is delivered by a voltage of 12 volts DC and a current of 2.5 amperes?

Select	Answer
A	0.208 watts
B	4.8 watts
C	14.5 watts
D	30 watts

21. - T5D06

What is the resistance of a circuit that draws 4 amperes from a 12-volt source?

Select	Answer
A	48 ohms
B	8 ohms
C	16 ohms
D	3 ohms

22. - T6A07

What electrical component is typically constructed as a coil of wire?

Select	Answer
A	Inductor
B	Capacitor
C	Diode
D	Switch

23. - T6B10

Which of the following can provide power gain?

Select	Answer
A	Transformer
B	Resistor
C	Transistor
D	Reactor

24. - T6C09

What is component 4 in figure T-2?

Select	Answer
A	Transformer
B	Potentiometer
C	Variable inductor
D	Double-pole switch

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

27. - T7B07

Which of the following can reduce overload of a VHF transceiver by a nearby commercial FM station?

Select	Answer
A	Installing a band-reject filter
B	Using double-shielded coaxial cable
C	Installing an RF preamplifier
D	Installing bypass capacitors on the microphone cable

28. - T7C08

Which instrument can be used to determine SWR?

Select	Answer
A	Voltmeter
B	Directional wattmeter
C	Ohmmeter
D	Iambic pentameter

29. - T7D01

Which instrument would you use to measure electric potential?

Select	Answer
A	An ammeter
B	An ohmmeter
C	A wavemeter
D	A voltmeter

30. - T8A02

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

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

31. - T8B01

What telemetry information is typically transmitted by satellite beacons?

Select	Answer
A	All these choices are correct
B	The signal strength of received signals
C	Time of day accurate to plus or minus 1/10 second
D	Health and status of the satellite

32. - T8C05

What is a grid locator?

Select	Answer
A	An instrument for radio direction finding
B	A letter-number designator assigned to a geographic location
C	A letter-number designator assigned to an azimuth and elevation
D	An instrument for neutralizing a final amplifier

33. - T8D03

What kind of data can be transmitted by APRS?

Select	Answer
A	Text messages
B	GPS position data
C	All these choices are correct
D	Weather data

34. - T9A10

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

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

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