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

2. - T1B10

Which of the bands above 30 MHz that are available to Technician Class operators have mode-restricted sub-bands?

Select	Answer
A	The 2 meter and 70 cm bands
B	The 6 meter, 2 meter, and 70 cm bands
C	The 2 meter and 13 cm bands
D	The 6 meter, 2 meter, and 1.25 meter bands

3. - T1C11

If your license has expired and is still within the allowable grace period, may you continue to operate a transmitter on amateur service frequencies?

Select	Answer
A	Yes, but only during authorized nets
B	Yes, but only if you identify using the suffix GP
C	Yes, for up to two years
D	No, transmitting is not allowed until the FCC license database shows that the license has been renewed

4. - T1D03

When is the transmission of codes or ciphers that hide the meaning of a message allowed by an amateur station?

Select	Answer
A	Only when frequencies above 1280 MHz are used
B	Only during contests
C	Only when transmitting control commands to space stations or radio control craft
D	Only when operating mobile

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

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

7. - T2A01

What is the most common repeater frequency offset in the 2 meter band?

Select	Answer
A	Only plus 600 kHz
B	Minus 500 kHz
C	Plus or minus 600 kHz
D	Plus 500 kHz

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	Modulated carrier
B	CTCSS
C	Tone squelch
D	Carrier squelch

9. - T2C12

What is the Amateur Radio Emergency Service (ARES)?

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

10. - T3A09

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

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

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. - T3C03

What is a characteristic of VHF signals received via auroral reflection?

Select	Answer
A	These types of signals occur only during winter nighttime hours
B	The signals exhibit rapid fluctuations of strength and often sound distorted
C	Signals from distances of 10,000 or more miles are common
D	These types of signals are generally strongest when your antenna is aimed west

13. - T4A10

What is the source of a high-pitched whine that varies with engine speed in a mobile transceivers receive audio?

Select	Answer
A	Anti-lock braking system controllers
B	The ignition system
C	The alternator
D	The electric fuel pump

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	500 Hz
B	1000 Hz
C	2400 Hz
D	5000 Hz

15. - T5A12

What term describes the number of times per second that an alternating current reverses direction?

Select	Answer
A	Frequency
B	Speed
C	Pulse rate
D	Wavelength

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	-9 dB
B	-3 dB
C	-6 dB
D	-1 dB

17. - T5C07

What is a usual name for electromagnetic waves that travel through space?

Select	Answer
A	Radio waves
B	Sound waves
C	Pressure waves
D	Gravity waves

18. - T5D12

What is the voltage across a 10-ohm resistor if a current of 2 amperes flows through it?

Select	Answer
A	20 volts
B	8 volts
C	0.2 volts
D	12 volts

19. - T6A03

What electrical parameter is controlled by a potentiometer?

Select	Answer
A	Inductance
B	Capacitance
C	Field strength
D	Resistance

20. - T6B05

Which of the following electronic components can amplify signals?

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

21. - T6C10

What is component 3 in figure T3?

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

22. - T6D05

What type of circuit controls the amount of voltage from a power supply?

Select	Answer
A	Phase inverter
B	Filter
C	Oscillator
D	Regulator

23. - T7A07

What is meant by term PTT?

Select	Answer
A	The push to talk function which switches between receive and transmit
B	Precise tone transmissions used to limit repeater access to only certain signals
C	Pre-transmission tuning to reduce transmitter harmonic emission
D	A primary transformer tuner use to match antennas

24. - T7B11

What is a symptom of RF feedback in a transmitter or transceiver?

Select	Answer
A	Frequent blowing of power supply fuses
B	Excessive SWR at the antenna connection
C	Reports of garbled, distorted, or unintelligible transmissions
D	The transmitter will not stay on the desired frequency

25. - T7C01

What is the primary purpose of a dummy load?

Select	Answer
A	To improve the radiation from your antenna
B	To improve the signal to noise ratio of your receiver
C	To prevent over-modulation of your transmitter
D	To prevent the radiation of signals when making tests

26. - T7D04

Which instrument is used to measure electric current?

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

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. - T8B06

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

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

29. - T8C06

How is access to an IRLP node accomplished?

Select	Answer
A	By using CTCSS tone codes
B	By obtaining a password which is sent via voice to the node
C	By using DTMF signals
D	By entering the proper Internet password

30. - T8D08

Which of the following may be included in packet transmissions?

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

31. - T9A11

What is meant by the gain of an antenna?

Select	Answer
A	The increase in signal strength in a specified direction when compared to a reference antenna
B	The additional power that is added to the transmitter power
C	The increase in impedance on receive or transmit compared to a reference antenna
D	The additional power that is lost in the antenna when transmitting on a higher frequency

32. - T9B06

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

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

33. - T0A06

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

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

34. - T0B01

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

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

35. - T0C12

How does RF radiation differ from ionizing radiation (radioactivity)?

Select	Answer
A	RF radiation can only be detected with an RF dosimeter
B	RF radiation is limited in range to a few feet
C	RF radiation does not have sufficient energy to cause genetic damage
D	RF radiation is perfectly safe

Figure T3