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. - T1A13

What is the FCC Part 97 definition of telecommand?

Select	Answer
A	An instruction bulletin issued by the FCC
B	A one-way transmission to initiate, modify or terminate functions of a device at a distance
C	A one-way radio transmission of measurements at a distance from the measuring instrument
D	An instruction from a VEC

2. - T1B03

Which frequency is within the 6 meter band?

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

3. - T1C02

Which of the following is a valid US amateur radio station call sign?

Select	Answer
A	KDKA
B	11Q1176
C	W3ABC
D	KMA3505

4. - T1D04

What is the only time an amateur station is authorized to transmit music?

Select	Answer
A	When the purpose is to interfere with an illegal transmission
B	When the music is transmitted above 1280 MHz
C	When incidental to an authorized retransmission of manned spacecraft communications
D	When the music produces no spurious emissions

5. - T1E12

When, under normal circumstances, may a Technician Class licensee be the control operator of a station operating in an exclusive Extra Class operator segment of the amateur bands?

Select	Answer
A	When operating a special event station
B	When using a club station whose trustee is an Extra Class operator licensee
C	At no time
D	As part of a multi-operator contest team

6. - T1F11

To which foreign stations do the FCC rules authorize the transmission of non-emergency third party communications?

Select	Answer
A	Those in ITU Regions 2 and 3 only
B	Those in ITU Region 3 only
C	Those in ITU Region 2 only
D	Any station whose government permits such communications

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 words Hello test followed by your call sign
B	The letters QSY followed by your call sign
C	The repeater call sign followed by your call sign
D	Your 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	CTCSS
B	Tone burst
C	DTMF
D	Carrier squelch

9. - T2C12

What is the Amateur Radio Emergency Service (ARES)?

Select	Answer
A	A training program that provides licensing courses for those interested in obtaining an amateur license to use during emergencies
B	Licensed amateurs who have voluntarily registered their qualifications and equipment for communications duty in the public service
C	Licensed amateurs who are members of the military and who voluntarily agreed to provide message handling services in the case of an emergency
D	A training program that certifies amateur operators for membership in the Radio Amateur Civil Emergency Service

10. - T3A03

What antenna polarization is normally used for long-distance weak-signal CW and SSB contacts using the VHF and UHF bands?

Select	Answer
A	Left-hand circular
B	Vertical
C	Horizontal
D	Right-hand circular

11. - T3B01

What is the name for the distance a radio wave travels during one complete cycle?

Select	Answer
A	Wave speed
B	Waveform
C	Wave spread
D	Wavelength

12. - T3C05

Which of the following effects might cause radio signals to be heard despite obstructions between the transmitting and receiving stations?

Select	Answer
A	Doppler shift
B	Quantum tunneling
C	Knife-edge diffraction
D	Faraday rotation

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

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 protect an antenna from lightning
D	To keep received audio relatively constant

15. - T5A08

Which of the following is a good electrical insulator?

Select	Answer
A	Aluminum
B	Glass
C	Copper
D	Mercury

16. - T5B05

Which of the following is equivalent to 500 milliwatts?

Select	Answer
A	0.02 watts
B	5 watts
C	0.5 watts
D	50 watts

17. - T5C04

What is the basic unit of inductance?

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

18. - T5D07

What is the current flow in a circuit with an applied voltage of 120 volts and a resistance of 80 ohms?

Select	Answer
A	9600 amperes
B	200 amperes
C	0.667 amperes
D	1.5 amperes

19. - T6A05

What type of electrical component consists of two or more conductive surfaces separated by an insulator?

Select	Answer
A	Potentiometer
B	Oscillator
C	Capacitor
D	Resistor

20. - T6B11

What at are the three electrodes of a field effect transistor?

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

21. - T6C10

What is component 3 in figure T3?

Select	Answer
A	Connector
B	Variable inductor
C	Meter
D	Variable capacitor

22. - T6D07

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

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

23. - T7A05

What is the name of a circuit that generates a signal of a desired frequency?

Select	Answer
A	Low-pass filter
B	Reactance modulator
C	Oscillator
D	Product detector

24. - T7B03

Which of the following may be a cause of radio frequency interference?

Select	Answer
A	Harmonics
B	Spurious emissions
C	Fundamental overload
D	All of these choices are correct

25. - T7C11

What is a disadvantage of air core coaxial cable when compared to foam or solid dielectric types?

Select	Answer
A	It cannot be used at below freezing temperatures
B	It requires special techniques to prevent water absorption
C	It has more loss per foot
D	It cannot be used for VHF or UHF antennas

26. - T7D06

Which of the following might damage a multimeter?

Select	Answer
A	Attempting to measure voltage when using the resistance setting
B	Measuring a voltage too small for the chosen scale
C	Leaving the meter in the milliamps position overnight
D	Not allowing it to warm up properly

27. - T8A08

What is the approximate bandwidth of a single sideband voice signal?

Select	Answer
A	3 kHz
B	15 kHz
C	6 kHz
D	1 kHz

28. - T8B06

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

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

29. - T8C03

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

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

30. - T8D01

Which of the following is an example of a digital communications method?

Select	Answer
A	PSK31
B	MFSK
C	All of these choices are correct
D	Packet

31. - T9A09

What is the approximate length, in inches, of a 6 meter 1/2-wavelength wire dipole antenna?

Select	Answer
A	50
B	112
C	236
D	6

32. - T9B06

Which of the following connectors is most suitable for frequencies above 400 MHz?

Select	Answer
A	An RS-213 connector
B	A Type N connector
C	A UHF (PL-259/SO-239) connector
D	A DB-25 connector

33. - T0A06

What is a good way to guard against electrical shock at your station?

Select	Answer
A	Use a circuit protected by a ground-fault interrupter
B	All of these choices are correct
C	Use three-wire cords and plugs for all AC powered equipment
D	Connect all AC powered station equipment to a common safety ground

34. - T0B10

Which of the following is true concerning grounding conductors used for lightning protection?

Select	Answer
A	Sharp bends must be avoided
B	Wires must be carefully routed with precise right-angle bends
C	Only non-insulated wire must be used
D	Common grounds must be avoided

35. - T0C07

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

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

Figure T3