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	Shorting the terminals can cause burns, fire, or an explosion
D	All these choices are correct

2. - T0B05

What is the purpose of a safety wire through a turnbuckle used to tension guy lines?

Select	Answer
A	Prevent loosening of the turnbuckle from vibration
B	Provide an ability to measure for proper tensioning
C	Provide a ground path for lightning strikes
D	Secure the guy line if the turnbuckle breaks

3. - T0C02

At which of the following frequencies does maximum permissible exposure have the lowest value?

Select	Answer
A	3.5 MHz
B	50 MHz
C	440 MHz
D	1296 MHz

4. - T1A02

Which agency regulates and enforces the rules for the Amateur Radio Service in the United States?

Select	Answer
A	FEMA
B	The FCC
C	Homeland Security
D	All these choices are correct

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

6. - T1C06

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

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

7. - T1D11

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

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

8. - T1E06

When, under normal circumstances, may a Technician class licensee be the control operator of a station operating in an Amateur Extra Class band segment?

Select	Answer
A	When designated as the control operator by an Amateur Extra Class licensee
B	At no time
C	As part of a multi-operator contest team
D	When using a club station whose trustee holds an Amateur Extra Class license

9. - T1F06

Which of the following self-assigned indicators are acceptable when using a phone transmission?

Select	Answer
A	All these choices are correct
B	KL7CC slant W3
C	KL7CC slash W3
D	KL7CC stroke W3

10. - T2A02

What is the national calling frequency for FM simplex operations in the 2 meter band?

Select	Answer
A	146.520 MHz
B	432.100 MHz
C	145.000 MHz
D	446.000 MHz

11. - T2B12

What is the purpose of the color code used on DMR repeater systems?

Select	Answer
A	Must match the repeater color code for access
B	Identifies the codec used
C	Defines the minimum signal level required for access
D	Defines the frequency pair to use

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	FCC rules always apply
C	When operating under special ARES rules
D	When operating a RACES station

13. - T3A09

Which of the following results from the fact that signals propagated by the ionosphere are elliptically polarized?

Select	Answer
A	Both the transmitting and receiving antennas must be of the same polarization
B	Either vertically or horizontally polarized antennas may be used for transmission or reception
C	Digital modes are unusable
D	FM voice is unusable

14. - T3B04

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

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

16. - T4A09

How can you determine the length of time that equipment can be powered from a battery?

Select	Answer
A	Multiply the square of the current rating of the battery by the input resistance of the equipment
B	Divide the battery ampere-hour rating by the average current draw of the equipment
C	Divide the watt-hour rating of the battery by the peak power consumption of the equipment
D	Multiply the watts per hour consumed by the equipment by the battery power rating

17. - T4B08

What is the advantage of having multiple receive bandwidth choices on a multimode transceiver?

Select	Answer
A	Permits monitoring several modes at once by selecting a separate filter for each mode
B	Increases the number of frequencies that can be stored in memory
C	Increases the amount of offset between receive and transmit frequencies
D	Permits noise or interference reduction by selecting a bandwidth matching the mode

18. - T5A11

What type of current flow is opposed by resistance?

Select	Answer
A	All these choices are correct
B	RF current
C	Direct current
D	Alternating current

19. - T5B11

Which decibel value represents a power increase from 20 watts to 200 watts?

Select	Answer
A	12 dB
B	10 dB
C	18 dB
D	28 dB

20. - T5C08

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

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

21. - T5D13

In which type of circuit is DC current the same through all components?

Select	Answer
A	Parallel
B	Series
C	Branch
D	Resonant

22. - T6A06

What type of electrical component stores energy in a magnetic field?

Select	Answer
A	Inductor
B	Varistor
C	Capacitor
D	Diode

23. - T6B02

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

Select	Answer
A	Diode
B	Resistor
C	Fuse
D	Driven element

24. - T6C05

What is component 4 in figure T-1?

Select	Answer
A	Battery
B	Transistor
C	Resistor
D	Ground symbol

25. - T6D02

What is a relay?

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

26. - T7A01

Which term describes the ability of a receiver to detect the presence of a signal?

Select	Answer
A	Total Harmonic Distortion
B	Selectivity
C	Linearity
D	Sensitivity

27. - T7B11

What is a symptom of RF feedback in a transmitter or transceiver?

Select	Answer
A	Excessive SWR at the antenna connection
B	Reports of garbled, distorted, or unintelligible voice transmissions
C	Frequent blowing of power supply fuses
D	The transmitter will not stay on the desired frequency

28. - T7C06

What does an SWR reading of 4:1 indicate?

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

29. - T7D04

Which instrument is used to measure electric current?

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

30. - T8A11

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

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

31. - T8B04

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

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

32. - T8C11

What is an amateur radio station that connects other amateur stations to the internet?

Select	Answer
A	A digipeater
B	A repeater
C	A gateway
D	A beacon

33. - T8D04

What type of transmission is indicated by the term "NTSC?"

Select	Answer
A	An analog fast-scan color TV signal
B	A Normal Transmission mode in Static Circuit
C	A frame compression scheme for TV signals
D	A special mode for satellite uplink

34. - T9A12

What is an advantage of a 5/8 wavelength whip antenna for VHF or UHF mobile service?

Select	Answer
A	It has more gain than a 1/4-wavelength antenna
B	It eliminates distortion caused by reflected signals
C	It radiates at a very high angle
D	It has 10 times the power gain of a 1/4 wavelength whip

35. - T9B07

Which of the following is true of PL-259 type coax connectors?

Select	Answer
A	They are a bayonet-type connector
B	They are commonly used at HF and VHF frequencies
C	They are preferred for microwave operation
D	They are watertight

Figure T-1