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

2. - T0B04

Which of the following is an important safety precaution to observe when putting up an antenna tower?

Select	Answer
A	Look for and stay clear of any overhead electrical wires
B	Insulate the base of the tower to avoid lightning strikes
C	All these choices are correct
D	Wear a ground strap connected to your wrist at all times

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. - T1A03

What do the FCC rules state regarding the use of a phonetic alphabet for station identification in the Amateur Radio Service?

Select	Answer
A	It is encouraged
B	All these choices are correct
C	It is required when transmitting emergency messages
D	It is required when in contact with foreign stations

5. - T1B11

What is the maximum peak envelope power output for Technician class operators in their HF band segments?

Select	Answer
A	100 watts
B	10 watts
C	50 watts
D	200 watts

6. - T1C06

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

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

7. - T1D11

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

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

8. - T1E09

Which of the following are required for remote control operation?

Select	Answer
A	The control operator must be at the control point
B	The control operator must indirectly manipulate the controls
C	A control operator is required at all times
D	All these choices are correct

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 after written notification by the FCC of such inspection
C	At any time ten days after notification by the FCC of such an inspection
D	At any time upon request by an FCC representative

10. - T2A10

What is a band plan, beyond the privileges established by the FCC?

Select	Answer
A	A list of available net frequencies
B	A voluntary guideline for using different modes or activities within an amateur band
C	A list of operating schedules
D	A plan devised by a club to indicate frequency band usage

11. - T2B03

Which of the following describes a linked repeater network?

Select	Answer
A	Multiple repeaters with the same control operator
B	A system of repeaters linked by APRS
C	A single repeater with more than one receiver
D	A network of repeaters in which signals received by one repeater are transmitted by all the repeaters in the network

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	The address of the intended recipient
D	Information needed to track the message

13. - T3A12

What is the effect of fog and rain on signals in the 10 meter and 6 meter bands?

Select	Answer
A	Deflection
B	There is little effect
C	Range increase
D	Absorption

14. - T3B07

In addition to frequency, which of the following is used to identify amateur radio bands?

Select	Answer
A	The approximate wavelength in meters
B	Traditional letter/number designators
C	All these choices are correct
D	Channel numbers

15. - T3C01

Why are simplex UHF signals rarely heard beyond their radio horizon?

Select	Answer
A	FCC regulations prohibit them from going more than 50 miles
B	UHF signals are usually not propagated by the ionosphere
C	They are too weak to go very far
D	UHF signals are absorbed by the ionospheric D region

16. - T4A09

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

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

17. - T4B11

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

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

18. - T5A04

What are the units of electrical resistance?

Select	Answer
A	Siemens
B	Ohms
C	Mhos
D	Coulombs

19. - T5B13

Which is equal to 2425 MHz?

Select	Answer
A	2.425 GHz
B	0.002425 GHz
C	2425 GHz
D	24.25 GHz

20. - T5C10

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

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

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	8 ohms
B	18 ohms
C	13.5 ohms
D	0.125 ohms

22. - T6A11

Which of the following battery chemistries is not rechargeable?

Select	Answer
A	Lead-acid
B	Nickel-cadmium
C	Carbon-zinc
D	Lithium-ion

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	Battery
B	Ground symbol
C	Resistor
D	Transistor

25. - T6D07

Which of the following is commonly used as a visual indicator?

Select	Answer
A	Zener diode
B	FET
C	LED
D	Bipolar transistor

26. - T7A06

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

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

27. - T7B10

What might be a problem if you receive a report that your audio signal through an FM repeater is distorted or unintelligible?

Select	Answer
A	All these choices are correct
B	You are in a bad location
C	Your batteries are running low
D	Your transmitter is slightly off frequency

28. - T7C09

Which of the following causes failure of coaxial cables?

Select	Answer
A	Rapid fluctuation in transmitter output power
B	Moisture contamination
C	Solder flux contamination
D	Operation at 100% duty cycle for an extended period

29. - T7D02

How is a voltmeter connected to a component to measure applied voltage?

Select	Answer
A	In quadrature
B	In parallel
C	In phase
D	In series

30. - T8A10

What is the approximate bandwidth of AM fast-scan TV transmissions?

Select	Answer
A	About 3 MHz
B	About 6 MHz
C	About 1 MHz
D	More than 10 MHz

31. - T8B03

Which of the following are provided by satellite tracking programs?

Select	Answer
A	The apparent frequency of the satellite transmission, including effects of Doppler shift
B	The time, azimuth, and elevation of the start, maximum altitude, and end of a pass
C	Maps showing the real-time position of the satellite track over Earth
D	All these choices are correct

32. - T8C09

Which of the following protocols enables an amateur station to transmit through a repeater without using a radio to initiate the transmission?

Select	Answer
A	IRLP
B	D-STAR
C	DMR
D	EchoLink

33. - T8D01

Which of the following is a digital communications mode?

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

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 radiates at a very high angle
C	It eliminates distortion caused by reflected signals
D	It has 10 times the power gain of a 1/4 wavelength whip

35. - T9B08

Which of the following is a source of loss in coaxial feed line?

Select	Answer
A	All these choices are correct
B	Water intrusion into coaxial connectors
C	Multiple connectors in the line
D	High SWR

Figure T-1