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. - T0A12

Which of the following precautions should be taken when measuring high voltages with a voltmeter?

Select	Answer
A	Ensure that the circuit is grounded through the voltmeter
B	Ensure that the voltmeter is set to the correct frequency
C	Ensure that the voltmeter and leads are rated for use at the voltages to be measured
D	Ensure that the voltmeter has very low impedance

2. - T0B07

Which of the following is an important safety rule to remember when using a crank-up tower?

Select	Answer
A	All these choices are correct
B	This type of tower must never be painted
C	This type of tower must never be grounded
D	This type of tower must not be climbed unless it is retracted, or mechanical safety locking devices have been installed

3. - T0C01

What type of radiation are radio signals?

Select	Answer
A	Alpha radiation
B	Non-ionizing radiation
C	Gamma radiation
D	Ionizing radiation

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. - T1B05

How may amateurs use the 219 to 220 MHz segment of 1.25 meter band?

Select	Answer
A	Fixed digital message forwarding systems only
B	Fast-scan television only
C	Emergency traffic only
D	Spread spectrum only

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. - T1D03

When is it permissible to transmit messages encoded to obscure their meaning?

Select	Answer
A	Only when transmitting control commands to space stations or radio control craft
B	Never
C	Only when transmitting certain approved digital codes
D	Only during contests

8. - T1E03

Who must designate the station control operator?

Select	Answer
A	The FCC
B	The station licensee
C	The frequency coordinator
D	Any licensed operator

9. - T1F06

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

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

10. - T2A02

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

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

11. - T2B13

What is the purpose of a squelch function?

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

12. - T2C05

What does the term “traffic” refer to in net operation?

Select	Answer
A	Requests to activate the net by a served agency
B	Messages exchanged by net stations
C	The number of stations checking in and out of a net
D	Operation by mobile or portable stations

13. - T3A06

What is the meaning of the term “picket fencing”?

Select	Answer
A	Local vs long-distance communications
B	Alternating transmissions during a net operation
C	A type of ground system used with vertical antennas
D	Rapid flutter on mobile signals due to multipath propagation

14. - T3B08

What frequency range is referred to as VHF?

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

15. - T3C05

Which of the following effects may allow radio signals to travel beyond obstructions between the transmitting and receiving stations?

Select	Answer
A	Doppler shift
B	Knife-edge diffraction
C	Faraday rotation
D	Quantum tunneling

16. - T4A10

What function is performed with a transceiver and a digital mode hot spot?

Select	Answer
A	RTTY encoding and decoding without a computer
B	High-speed digital communications for meteor scatter
C	FT8 digital communications via AFSK
D	Communication using digital voice or data systems via the internet

17. - T4B09

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

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

18. - T5A09

Which of the following describes alternating current?

Select	Answer
A	Current that alternates between a negative direction and zero
B	Current that alternates between positive and negative directions
C	Current that alternates between a positive direction and zero
D	All these answers are correct

19. - T5B07

Which is equal to 3.525 MHz?

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

20. - T5C08

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

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

21. - T5D10

What is the voltage across a 2-ohm resistor if a current of 0.5 amperes flows through it?

Select	Answer
A	1 volt
B	0.25 volts
C	2.5 volts
D	1.5 volts

22. - T6A03

What electrical parameter is controlled by a potentiometer?

Select	Answer
A	Capacitance
B	Resistance
C	Inductance
D	Field strength

23. - T6B03

Which of these components can be used as an electronic switch?

Select	Answer
A	Thermistor
B	Potentiometer
C	Transistor
D	Varistor

24. - T6C10

What is component 3 in figure T-3?

Select	Answer
A	Variable capacitor
B	Meter
C	Connector
D	Variable inductor

25. - T6D08

Which of the following is combined with an inductor to make a resonant circuit?

Select	Answer
A	Resistor
B	Potentiometer
C	Zener diode
D	Capacitor

26. - T7A06

What device converts the RF input and output of a transceiver to another band?

Select	Answer
A	Transverter
B	Low-pass filter
C	High-pass filter
D	Phase converter

27. - T7B03

Which of the following can cause radio frequency interference?

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

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. - T7D06

Which of the following can damage a multimeter?

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

30. - T8A11

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

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

31. - T8B09

What causes spin fading of satellite signals?

Select	Answer
A	Circular polarized noise interference radiated from the sun
B	Doppler shift of the received signal
C	Interfering signals within the satellite uplink band
D	Rotation of the satellite and its antennas

32. - T8C02

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

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

33. - T8D03

What kind of data can be transmitted by APRS?

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

34. - T9A07

What is a disadvantage of using a handheld VHF transceiver with a flexible antenna inside a vehicle?

Select	Answer
A	Signal strength is reduced due to the shielding effect of the vehicle
B	The SWR might decrease, decreasing the signal strength
C	The bandwidth of the antenna will decrease, increasing SWR
D	All these choices are correct

35. - T9B03

Why is coaxial cable the most common feed line for amateur radio antenna systems?

Select	Answer
A	It is easy to use and requires few special installation considerations
B	It has less loss than any other type of feed line
C	It is less expensive than any other type of feed line
D	It can handle more power than any other type of feed line

Figure T-3