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. - T1A06

Which of the following services are protected from interference by amateur signals under all circumstances?

Select	Answer
A	Citizens Radio Service
B	Radionavigation Service
C	Land Mobile Radio Service
D	Broadcast Service

2. - T1B08

Which of the following is a result of the fact that the amateur service is secondary in some portions of the 70 cm band?

Select	Answer
A	U.S. amateurs must give foreign amateur stations priority in those portions
B	Digital transmissions are not permitted on 70 cm
C	International communications are not permitted on 70 cm
D	U.S. amateurs may find non-amateur stations in the bands, and must avoid interfering with them

3. - T1C06

From which of the following locations may an FCC-licensed amateur station transmit, in addition to places where the FCC regulates communications?

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

4. - T1D05

When may amateur radio operators use their stations to notify other amateurs of the availability of equipment for sale or trade?

Select	Answer
A	When the asking price is $100.00 or less
B	When the equipment is normally used in an amateur station and such activity is not conducted on a regular basis
C	When the asking price is less than its appraised value
D	When the equipment is not the personal property of either the station licensee or the control operator or their close relatives

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. - T1F05

What method of call sign identification is required for a station transmitting phone signals?

Select	Answer
A	Send the call sign followed by the indicator RPT
B	Send the call sign using only phone emission
C	Send the call sign using CW or phone emission
D	Send the call sign followed by the indicator R

7. - T2A04

What is an appropriate way to call another station on a repeater if you know the other station's call sign?

Select	Answer
A	Wait for the station to call CQ then answer it
B	Say the station's call sign then identify with your call sign
C	Say CQ three times then the other station's call sign
D	Say break, break then say the station's call sign

8. - T2B02

What is the term used to describe the use of a sub-audible tone transmitted with normal voice audio to open the squelch of a receiver?

Select	Answer
A	DTMF
B	Carrier squelch
C	Tone burst
D	CTCSS

9. - T2C07

Which of the following is an accepted practice for an amateur operator who has checked into an emergency traffic net?

Select	Answer
A	All of the choices are correct
B	Remain on frequency without transmitting until asked to do so by the net control station
C	Provided that the frequency is quiet, announce the station call sign and location every 5 minutes
D	Move 5 kHz away from the net's frequency and use high power to ask other hams to keep clear of the net frequency

10. - T3A02

Why are UHF signals often more effective from inside buildings than VHF signals?

Select	Answer
A	VHF signals lose power faster over distance
B	The shorter wavelength allows them to more easily penetrate the structure of buildings
C	This is incorrect; VHF works better than UHF inside buildings
D	UHF antennas are more efficient than VHF antennas

11. - T3B05

How does the wavelength of a radio wave relate to its frequency?

Select	Answer
A	The wavelength depends on the bandwidth of the signal
B	The wavelength gets shorter as the frequency increases
C	There is no relationship between wavelength and frequency
D	The wavelength gets longer as the frequency increases

12. - T3C01

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

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

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	Band-pass filter
B	Preamplifier
C	Ferrite choke
D	Low-pass filter

14. - T4B10

Which of the following is an appropriate receive filter bandwidth to select in order to minimize noise and interference for CW reception?

Select	Answer
A	2400 Hz
B	1000 Hz
C	500 Hz
D	5000 Hz

15. - T5A08

Which of the following is a good electrical insulator?

Select	Answer
A	Mercury
B	Glass
C	Copper
D	Aluminum

16. - T5B10

What is the approximate amount of change, measured in decibels (dB), of a power decrease from 12 watts to 3 watts?

Select	Answer
A	-6 dB
B	-1 dB
C	-9 dB
D	-3 dB

17. - T5C01

What is the ability to store energy in an electric field called?

Select	Answer
A	Capacitance
B	Resistance
C	Inductance
D	Tolerance

18. - T5D10

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

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

19. - T6A03

What electrical parameter is controlled by a potentiometer?

Select	Answer
A	Field strength
B	Inductance
C	Resistance
D	Capacitance

20. - T6B10

What are the three electrodes of a PNP or NPN transistor?

Select	Answer
A	Cathode, drift cavity, and collector
B	Source, gate, and drain
C	Cathode, grid, and plate
D	Emitter, base, and collector

21. - T6C06

What is component 6 in figure T2?

Select	Answer
A	Capacitor
B	Regulator IC
C	Resistor
D	Transistor

22. - T6D01

Which of the following devices or circuits changes an alternating current into a varying direct current signal?

Select	Answer
A	Transformer
B	Rectifier
C	Amplifier
D	Reflector

23. - T7A08

Which of the following describes combining speech with an RF carrier signal?-

Select	Answer
A	Low-pass filtering
B	Oscillation
C	Modulation
D	Impedance matching

24. - T7B02

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

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

25. - T7C04

What reading on an SWR meter indicates a perfect impedance match between the antenna and the feed line?

Select	Answer
A	10 to 1
B	1 to 3
C	1 to 1
D	2 to 1

26. - T7D12

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

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

27. - T8A04

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

Select	Answer
A	FM
B	PSK
C	AM
D	SSB

28. - T8B02

How much transmitter power should be used on the uplink frequency of an amateur satellite or space station?

Select	Answer
A	Never more than 1 watt
B	The minimum amount of power needed to complete the contact
C	No more than half the rating of your linear amplifier
D	The maximum power of your transmitter

29. - T8C07

What is the maximum power allowed when transmitting telecommand signals to radio controlled models?

Select	Answer
A	1 watt
B	1500 watts
C	500 milliwatts
D	25 watts

30. - T8D10

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

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

31. - T9A02

Which of the following is true regarding vertical antennas?

Select	Answer
A	The phase is inverted
B	The electric field is perpendicular to the Earth
C	The magnetic field is perpendicular to the Earth
D	The phase is reversed

32. - T9B10

What electrical difference exists between the smaller RG-58 and larger RG-8 coaxial cables?

Select	Answer
A	There is no significant difference between the two types
B	RG-58 cable can handle higher power levels
C	RG-58 cable has less loss at a given frequency
D	RG-8 cable has less loss at a given frequency

33. - T0A01

Which of the following is a safety hazard of a 12-volt storage battery?

Select	Answer
A	RF emissions from the battery
B	All of these choices are correct
C	Touching both terminals with the hands can cause electrical shock
D	Shorting the terminals can cause burns, fire, or an explosion

34. - T0B01

When should members of a tower work team wear a hard hat and safety glasses?

Select	Answer
A	At all times when any work is being done on the tower
B	Only when the tower exceeds 30 feet in height
C	At all times except when climbing the tower
D	At all times except when belted firmly to the tower

35. - T0C07

What could happen if a person accidentally touched your antenna while you were transmitting?

Select	Answer
A	They might receive a painful RF burn
B	Touching the antenna could cause television interference
C	They might develop radiation poisoning
D	All of these choices are correct

Figure T2