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

2. - T1B13

Which emission may be used between 219 and 220 MHz?

Select	Answer
A	Data
B	Spread spectrum
C	Fast-scan television
D	SSB voice

3. - T1C07

What may result when correspondence from the FCC is returned as undeliverable because the grantee failed to provide the correct mailing address?

Select	Answer
A	A reduction of one rank in operator class
B	Revocation of the station license or suspension of the operator license
C	Require the licensee to be re-examined
D	Fine or imprisonment

4. - T1D06

What, if any, are the restrictions concerning transmission of language that may be considered indecent or obscene?

Select	Answer
A	The FCC maintains a list of words that are not permitted to be used on amateur frequencies
B	There is no such prohibition
C	The ITU maintains a list of words that are not permitted to be used on amateur frequencies
D	Any such language is prohibited

5. - T1E10

Which of the following is an example of remote control as defined in Part 97?

Select	Answer
A	Controlling a model aircraft, boat or car by amateur radio
B	Repeater operation
C	Operating the station over the Internet
D	All of these choices are correct

6. - T1F06

Which of the following formats of a self-assigned indicator is acceptable when identifying using a phone transmission?

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

7. - T2A09

What brief statement is often transmitted in place of CQ to indicate that you are listening on a repeater?

Select	Answer
A	The repeater call sign followed by your call sign
B	Your call sign
C	The letters QSY followed by your call sign
D	The words Hello test followed by your call sign

8. - T2B03

Which of the following describes the muting of receiver audio controlled solely by the presence or absence of an RF signal?

Select	Answer
A	Carrier squelch
B	Modulated carrier
C	CTCSS
D	Tone squelch

9. - T2C05

Which of the following describes the Radio Amateur Civil Emergency Service (RACES)?

Select	Answer
A	A radio service using amateur frequencies for emergency management or civil defense communications
B	All of these choices are correct
C	A radio service using amateur stations for emergency management or civil defense communications
D	An emergency service using amateur operators certified by a civil defense organization as being enrolled in that organization

10. - T3A09

Which of the following results from the fact that skip signals refracted from the ionosphere are elliptically polarized?

Select	Answer
A	Digital modes are unusable
B	FM voice is unusable
C	Both the transmitting and receiving antennas must be of the same polarization
D	Either vertically or horizontally polarized antennas may be used for transmission or reception

11. - T3B02

What property of a radio wave is used to describe its polarization?

Select	Answer
A	The orientation of the electric field
B	The ratio of the energy in the magnetic field to the energy in the electric field
C	The ratio of the velocity to the wavelength
D	The orientation of the magnetic field

12. - T3C10

What is the radio horizon?

Select	Answer
A	The distance from the ground to a horizontally mounted antenna
B	The distance over which two stations can communicate by direct path
C	The shortest distance between two points on the Earth's surface
D	The farthest point you can see when standing at the base of your antenna tower

13. - T4A07

How is a computers sound card used when conducting digital communications using a computer?

Select	Answer
A	The sound card records the audio frequency for video display
B	All of these choices are correct
C	The sound card provides audio to the microphone input and converts received audio to digital form
D	The sound card communicates between the computer CPU and the video display

14. - T4B03

What is the purpose of the squelch control on a transceiver?

Select	Answer
A	To set the transmitter power level
B	To adjust the automatic gain control
C	To set the highest level of volume desired
D	To mute receiver output noise when no signal is being received

15. - T5A01

Electrical current is measured in which of the following units?

Select	Answer
A	Watts
B	Amperes
C	Ohms
D	Volts

16. - T5B02

What is another way to specify a radio signal frequency of 1,500,000 hertz?

Select	Answer
A	1500 MHz
B	15 GHz
C	1500 kHz
D	150 kHz

17. - T5C04

What is the basic unit of inductance?

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

18. - T5D08

What is the current flowing through a 100-ohm resistor connected across 200 volts?

Select	Answer
A	0.5 amperes
B	2 amperes
C	20,000 amperes
D	100 amperes

19. - T6A06

What type of electrical component stores energy in a magnetic field?

Select	Answer
A	Capacitor
B	Inductor
C	Resistor
D	Diode

20. - T6B01

What class of electronic components is capable of using a voltage or current signal to control current flow?

Select	Answer
A	Inductors
B	Transistors
C	Capacitors
D	Resistors

21. - T6C12

What do the symbols on an electrical circuit schematic diagram represent?

Select	Answer
A	Digital codes
B	Electrical components
C	Logic states
D	Traffic nodes

22. - T6D02

What best describes a relay?

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

23. - T7A09

Which of the following devices is most useful for VHF weak-signal communication?

Select	Answer
A	An omni-directional antenna
B	A quarter-wave vertical antenna
C	A multi-mode VHF transceiver
D	A mobile VHF FM transceiver

24. - T7B05

How can overload of a non-amateur radio or TV receiver by an amateur signal be reduced or eliminated?

Select	Answer
A	Switch the transmitter to a narrow-band mode
B	Block the amateur signal with a filter at the antenna input of the affected receiver
C	Block the interfering signal with a filter on the amateur transmitter
D	Switch the transmitter from FM to SSB

25. - T7C10

Why should the outer jacket of coaxial cable be resistant to ultraviolet light?

Select	Answer
A	Ultraviolet resistant jackets prevent harmonic radiation
B	Ultraviolet light can damage the jacket and allow water to enter the cable
C	Ultraviolet light can increase losses in the cables jacket
D	Ultraviolet and RF signals can mix together, causing interference

26. - T7D10

What is probably happening when an ohmmeter, connected across an unpowered circuit, initially indicates a low resistance and then shows increasing resistance with time?

Select	Answer
A	The circuit contains a large capacitor
B	The circuit is a relaxation oscillator
C	The circuit contains a large inductor
D	The ohmmeter is defective

27. - T8A11

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

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

28. - T8B01

Who may be the control operator of a station communicating through an amateur satellite or space station?

Select	Answer
A	A General Class licensee or higher licensee who has a satellite operator certification
B	Only an Amateur Extra Class operator
C	Any amateur whose license privileges allow them to transmit on the satellite uplink frequency
D	Only an Amateur Extra Class operator who is also an AMSAT member

29. - T8C10

How do you select a specific IRLP node when using a portable transceiver?

Select	Answer
A	Use the keypad to transmit the IRLP node ID
B	Access the repeater autopatch
C	Choose the correct DSC tone
D	Choose a specific CTCSS tone

30. - T8D02

What does the term APRS mean?

Select	Answer
A	Automatic Packet Reporting System
B	Auto Planning Radio Set-up
C	Advanced Polar Radio System
D	Associated Public Radio Station

31. - T9A13

Why are VHF or UHF mobile antennas often mounted in the center of the vehicle roof?

Select	Answer
A	Roof mounts have the lowest possible SWR of any mounting configuration
B	A roof mounted antenna normally provides the most uniform radiation pattern
C	Only roof mounting can guarantee a vertically polarized signal
D	Roof mounted antennas are always the easiest to install

32. - T9B01

Why is it important to have a low SWR in an antenna system that uses coaxial cable feed line?

Select	Answer
A	To prolong antenna life
B	To reduce television interference
C	All of these choices are correct
D	To allow the efficient transfer of power and reduce losses

33. - T0A04

What is the purpose of a fuse in an electrical circuit?

Select	Answer
A	To limit current to prevent shocks
B	To prevent power supply ripple from damaging a circuit
C	To interrupt power in case of overload
D	All of these choices are correct

34. - T0B09

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

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

35. - T0C04

What factors affect the RF exposure of people near an amateur station antenna?

Select	Answer
A	Frequency and power level of the RF field
B	Distance from the antenna to a person
C	All of these choices are correct
D	Radiation pattern of the antenna