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. - T1A08

Which of the following entities recommends transmit/receive channels and other parameters for auxiliary and repeater stations?

Select	Answer
A	Frequency Spectrum Manager
B	Frequency Coordinator
C	International Telecommunications Union
D	FCC Regional Field Office

2. - T1B07

What amateur band are you using if you are transmitting on 223.50 MHz?

Select	Answer
A	10 meter band
B	15 meter band
C	1.25 meter band
D	2 meter band

3. - T1C03

What types of international communications are permitted by an FCC-licensed amateur station?

Select	Answer
A	Communications incidental to conducting business or remarks of a personal nature
B	Only communications incidental to contest exchanges, all other communications are prohibited
C	Any communications that would be permitted by an international broadcast station
D	Communications incidental to the purposes of the amateur service and remarks of a personal character

4. - T1D08

In which of the following circumstances may the control operator of an amateur station receive compensation for operating the station?

Select	Answer
A	When re-broadcasting weather alerts during a RACES net
B	When notifying other amateur operators of the availability for sale or trade of apparatus
C	When engaging in communications on behalf of their employer
D	When the communication is incidental to classroom instruction at an educational institution

5. - T1E07

When the control operator is not the station licensee, who is responsible for the proper operation of the station?

Select	Answer
A	The control operator and the station licensee are equally responsible
B	Only the control operator
C	All licensed amateurs who are present at the operation
D	Only 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 least every 10 minutes during and at the end of a communication
D	At the beginning of each contact, and every 10 minutes thereafter

7. - T2A06

What must an amateur operator do when making on-air transmissions to test equipment or antennas?

Select	Answer
A	Make test transmissions only after 10:00 p.m. local time
B	Properly identify the transmitting station
C	Notify the FCC of the test transmission
D	State the purpose of the test during the test procedure

8. - T2B06

What happens when the deviation of an FM transmitter is increased?

Select	Answer
A	Its signal occupies more bandwidth
B	Its output power and bandwidth increases
C	Asymmetric modulation occurs
D	Its output power increases

9. - T2C02

What is one way to recharge a 12-volt lead-acid station battery if the commercial power is out?

Select	Answer
A	All of these choices are correct
B	Add acid to the battery
C	Connect the battery in parallel with a vehicles battery and run the engine
D	Cool the battery in ice for several hours

10. - T3A08

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

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

11. - T3B05

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

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

12. - T3C09

What is generally the best time for long-distance 10 meter band propagation via the F layer?

Select	Answer
A	From dawn to shortly after sunset during periods of low sunspot activity
B	From shortly after sunset to dawn during periods of high sunspot activity
C	From shortly after sunset to dawn during periods of low sunspot activity
D	From dawn to shortly after sunset during periods of high sunspot activity

13. - T4A02

How might a computer be used as part of an amateur radio station?

Select	Answer
A	All of these choices are correct
B	For logging contacts and contact information
C	For sending and/or receiving CW
D	For generating and decoding digital signals

14. - T4B12

What is the function of automatic gain control or AGC?

Select	Answer
A	To eliminate RF on the station cabling
B	An asymmetric goniometer control used for antenna matching
C	To keep received audio relatively constant
D	To protect an antenna from lightning

15. - T5A09

What is the name for a current that reverses direction on a regular basis?

Select	Answer
A	Direct current
B	Vertical current
C	Alternating current
D	Circular current

16. - T5B07

If a frequency readout calibrated in megahertz shows a reading of 3.525 MHz, what would it show if it were calibrated in kilohertz?

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

17. - T5C05

What is the unit of frequency?

Select	Answer
A	Tesla
B	Farad
C	Henry
D	Hertz

18. - T5D09

What is the current flowing through a 24-ohm resistor connected across 240 volts?

Select	Answer
A	0.1 amperes
B	24,000 amperes
C	10 amperes
D	216 amperes

19. - T6A10

Which of the following battery types is rechargeable?

Select	Answer
A	Nickel-metal hydride
B	Lead-acid gel-cell
C	All of these choices are correct
D	Lithium-ion

20. - T6B05

Which of the following electronic components can amplify signals?

Select	Answer
A	Transistor
B	Multi-cell battery
C	Electrolytic capacitor
D	Variable resistor

21. - T6C03

What is component 2 in figure T1?

Select	Answer
A	Transistor
B	Indicator lamp
C	Resistor
D	Connector

22. - T6D02

What best describes a relay?

Select	Answer
A	A current controlled amplifier
B	A pass transistor
C	A switch controlled by an electromagnet
D	An optical sensor

23. - T7A08

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

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

24. - T7B10

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

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

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. - T7D04

Which instrument is used to measure electric current?

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

27. - T8A09

What is the approximate bandwidth of a VHF repeater FM phone signal?

Select	Answer
A	Between 10 and 15 kHz
B	Between 50 and 125 kHz
C	About 150 kHz
D	Less than 500 Hz

28. - T8B07

With regard to satellite communications, what is Doppler shift?

Select	Answer
A	A special digital communications mode for some satellites
B	A change in the satellite orbit
C	An observed change in signal frequency caused by relative motion between the satellite and the earth station
D	A mode where the satellite receives signals on one band and transmits on another

29. - T8C09

How might you obtain a list of active nodes that use VoIP?

Select	Answer
A	From your local emergency coordinator
B	From the FCC Rulebook
C	From a repeater directory
D	From the local repeater frequency coordinator

30. - T8D08

Which of the following may be included in packet transmissions?

Select	Answer
A	All of these choices are correct
B	A check sum which permits error detection
C	Automatic repeat request in case of error
D	A header which contains the call sign of the station to which the information is being sent

31. - T9A06

What type of antennas are the quad, Yagi, and dish?

Select	Answer
A	Non-resonant antennas
B	Loop antennas
C	Directional antennas
D	Isotropic antennas

32. - T9B11

Which of the following types of feed line has the lowest loss at VHF and UHF?

Select	Answer
A	Air-insulated hard line
B	Multi-conductor unbalanced cable
C	75-ohm flexible coax
D	50-ohm flexible coax

33. - 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	Shorting the terminals can cause burns, fire, or an explosion
C	All of these choices are correct
D	RF emissions from the battery

34. - T0B09

Why should you avoid attaching an antenna to a utility pole?

Select	Answer
A	The utility company will charge you an extra monthly fee
B	All of these choices are correct
C	The antenna could contact high-voltage power wires
D	The antenna will not work properly because of induced voltages

35. - T0C10

Why is duty cycle one of the factors used to determine safe RF radiation exposure levels?

Select	Answer
A	It takes into account the thermal effects of the final amplifier
B	It affects the peak exposure of people to radiation
C	It affects the average exposure of people to radiation
D	It takes into account the antenna feed line loss

Figure T1