US Amateur Radio - Technician (Element 2, 2014-2018) Practice Test

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US Amateur Radio - Technician (Element 2, 2014-2018) Practice Test

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1. - T1A12

Which of the following is a permissible use of the Amateur Radio Service?

Select	Answer
A	Broadcasting music and videos to friends
B	Allowing a person to conduct radio experiments and to communicate with other licensed hams around the world
C	Providing a way for amateur radio operators to earn additional income by using their stations to pass messages
D	Providing low-cost communications for start-up businesses

2. - T1B03

Which frequency is within the 6 meter band?

Select	Answer
A	28.50 MHz
B	222.15 MHz
C	49.00 MHz
D	52.525 MHz

3. - T1C05

Which of the following is a vanity call sign which a technician class amateur operator might select if available?

Select	Answer
A	All of these choices are correct
B	W1XX
C	K1XXX
D	KA1X

4. - T1D12

Under which of the following circumstances may an amateur radio station engage in broadcasting?

Select	Answer
A	Under no circumstances
B	At any time as long as the material being transmitted did not originate from a commercial broadcast station
C	At any time as long as no music is transmitted
D	When transmitting code practice, information bulletins, or transmissions necessary to provide emergency communications

5. - T1E11

Who does the FCC presume to be the control operator of an amateur station, unless documentation to the contrary is in the station records?

Select	Answer
A	The person operating the station equipment
B	The third party participant
C	The station custodian
D	The station licensee

6. - T1F03

When is an amateur station required to transmit its assigned call sign?

Select	Answer
A	At least once during each transmission
B	At least every 15 minutes during and at the end of a communication
C	At the beginning of each contact, and every 10 minutes thereafter
D	At least every 10 minutes during and at the end of a communication

7. - T2A12

Which of the following is a guideline to use when choosing an operating frequency for calling CQ?

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

8. - T2B09

Which of the following methods is encouraged by the FCC when identifying your station when using phone?

Select	Answer
A	Increase your signal to full power when identifying
B	Use of a phonetic alphabet
C	Send your call sign in CW as well as voice
D	Repeat your call sign three times

9. - T2C10

What is the preamble in a formal traffic message?

Select	Answer
A	The first paragraph of the message text
B	The information needed to track the message as it passes through the amateur radio traffic handling system
C	The message number
D	The priority handling indicator for the message

10. - T3A08

Which of the following is a likely cause of irregular fading of signals received by ionospheric reflection?

Select	Answer
A	Frequency shift due to Faraday rotation
B	Intermodulation distortion
C	Interference from thunderstorms
D	Random combining of signals arriving via different paths

11. - T3B10

What frequency range is referred to as HF?

Select	Answer
A	30 to 300 MHz
B	300 to 3000 MHz
C	300 to 3000 kHz
D	3 to 30 MHz

12. - T3C01

Why are direct (not via a repeater) UHF signals rarely heard from stations outside your local coverage area?

Select	Answer
A	UHF signals are usually not reflected by the ionosphere
B	They collide with trees and shrubbery and fade out
C	FCC regulations prohibit them from going more than 50 miles
D	They are too weak to go very far

13. - T4A09

Which of the following could you use to cure distorted audio caused by RF current flowing on the shield of a microphone cable?

Select	Answer
A	Ferrite choke
B	Preamplifier
C	Low-pass filter
D	Band-pass filter

14. - T4B05

Which of the following would reduce ignition interference to a receiver?

Select	Answer
A	Change frequency slightly
B	Use the RIT control
C	Turn on the noise blanker
D	Decrease the squelch setting

15. - T5A08

Which of the following is a good electrical insulator?

Select	Answer
A	Copper
B	Aluminum
C	Mercury
D	Glass

16. - T5B03

How many volts are equal to one kilovolt?

Select	Answer
A	One thousand volts
B	One one-thousandth of a volt
C	One million volts
D	One hundred volts

17. - T5C04

What is the basic unit of inductance?

Select	Answer
A	The ohm
B	The farad
C	The coulomb
D	The henry

18. - T5D11

What is the voltage across a 10-ohm resistor if a current of 1 ampere flows through it?

Select	Answer
A	1 volt
B	9 volts
C	11 volts
D	10 volts

19. - T6A01

What electrical component is used to oppose the flow of current in a DC circuit?

Select	Answer
A	Resistor
B	Voltmeter
C	Transformer
D	Inductor

20. - T6B07

What does the abbreviation LED stand for?

Select	Answer
A	Light Emitting Diode
B	Liquid Emission Detector
C	Long Echo Delay
D	Low Emission Diode

21. - T6C02

What is component 1 in figure T1?

Select	Answer
A	Transistor
B	Battery
C	Resistor
D	Connector

22. - T6D09

What is the name of a device that combines several semiconductors and other components into one package?

Select	Answer
A	Transformer
B	Transducer
C	Multi-pole relay
D	Integrated circuit

23. - T7A04

Which term describes the ability of a receiver to discriminate between multiple signals?

Select	Answer
A	Harmonic Distortion
B	Sensitivity
C	Discrimination ratio
D	Selectivity

24. - T7B02

What would cause a broadcast AM or FM radio to receive an amateur radio transmission unintentionally?

Select	Answer
A	The microphone gain of the transmitter is turned up too high
B	The deviation of an FM transmitter is set too low
C	The audio amplifier of the transmitter is overloaded
D	The receiver is unable to reject strong signals outside the AM or FM band

25. - T7C07

What happens to power lost in a feed line?

Select	Answer
A	It increases the SWR
B	It can cause distortion of your signal
C	It is converted into heat
D	It comes back into your transmitter and could cause damage

26. - T7D11

Which of the following precautions should be taken when measuring circuit resistance with an ohmmeter?

Select	Answer
A	Ensure that the circuit is not powered
B	Ensure that the circuit is grounded
C	Ensure that the applied voltages are correct
D	Ensure that the circuit is operating at the correct frequency

27. - T8A04

Which type of modulation is most commonly used for VHF and UHF voice repeaters?

Select	Answer
A	AM
B	SSB
C	FM
D	PSK

28. - T8B06

Which of the following are inputs to a satellite tracking program?

Select	Answer
A	The weight of the satellite
B	The Keplerian elements
C	All of these answers are correct
D	The last observed time of zero Doppler shift

29. - T8C03

What popular operating activity involves contacting as many stations as possible during a specified period of time?

Select	Answer
A	Net operations
B	Public service events
C	Contesting
D	Simulated emergency exercises

30. - T8D10

Which of the following can be used to transmit CW in the amateur bands?

Select	Answer
A	Electronic Keyer
B	Computer Keyboard
C	Straight Key
D	All of these choices are correct

31. - T9A12

What is a reason to use a properly mounted 5/8 wavelength antenna for VHF or UHF mobile service?

Select	Answer
A	It offers a lower angle of radiation and more gain than a 1/4 wavelength antenna and usually provides improved coverage
B	The 5/8 wavelength antenna offers a 10-times power gain over a 1/4 wavelength design
C	The 5/8 wavelength antenna completely eliminates distortion caused by reflected signals
D	It features a very high angle of radiation and is better for communicating via a repeater

32. - T9B09

What might cause erratic changes in SWR readings?

Select	Answer
A	A loose connection in an antenna or a feed line
B	The transmitter is being modulated
C	Interference from other stations is distorting your signal
D	The transmitter is being over-modulated

33. - T0A05

Why is it unwise to install a 20-ampere fuse in the place of a 5-ampere fuse?

Select	Answer
A	The power supply ripple would greatly increase
B	All of these choices are correct
C	Excessive current could cause a fire
D	The larger fuse would be likely to blow because it is rated for higher current

34. - T0B06

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

Select	Answer
A	The height of the power line above ground
B	So that if the antenna falls unexpectedly, no part of it can come closer than 10 feet to the power wires
C	1/2 wavelength at the operating frequency
D	Half the width of your property

35. - T0C13

If the averaging time for exposure is 6 minutes, how much power density is permitted if the signal is present for 3 minutes and absent for 3 minutes rather than being present for the entire 6 minutes?

Select	Answer
A	There is no adjustment allowed for shorter exposure times
B	3 times as much
C	2 times as much
D	1/2 as much

Figure T1