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. - T1A14

What must you do if you are operating on the 23 cm band and learn that you are interfering with a radiolocation station outside the United States?

Select	Answer
A	Establish contact with the radiolocation station and ask them to change frequency
B	Nothing, because this band is allocated exclusively to the amateur service
C	Stop operating or take steps to eliminate the harmful interference
D	Change to CW mode, because this would not likely cause interference

2. - T1B11

What emission modes are permitted in the mode-restricted sub-bands at 50.0 to 50.1 MHz and 144.0 to 144.1 MHz?

Select	Answer
A	SSB only
B	CW and RTTY
C	CW only
D	CW and SSB

3. - T1C04

When are you allowed to operate your amateur station in a foreign country?

Select	Answer
A	When the foreign country authorizes it
B	When you are communicating with non-licensed individuals in another country
C	When authorization permits amateur communications in a foreign language
D	When there is a mutual agreement allowing third party communications

4. - T1D12

Under which of the following circumstances may an amateur radio station engage in broadcasting?

Select	Answer
A	At any time as long as no music is transmitted
B	Under no circumstances
C	At any time as long as the material being transmitted did not originate from a commercial broadcast station
D	When transmitting code practice, information bulletins, or transmissions necessary to provide emergency communications

5. - T1E02

Who may a station licensee designate to be the control operator of an amateur station?

Select	Answer
A	Any family member of the station licensee
B	Any U.S. citizen or registered alien
C	Any person over the age of 18
D	Only a person for whom an amateur operator/primary station license grant appears in the FCC database or who is authorized for alien reciprocal operation

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 stroke W3
C	All of these choices are correct
D	KL7CC slash W3

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

8. - T2B06

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

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

9. - T2C10

What is the preamble in a formal traffic message?

Select	Answer
A	The first paragraph of the message text
B	The priority handling indicator for the message
C	The information needed to track the message as it passes through the amateur radio traffic handling system
D	The message number

10. - T3A11

Which part of the atmosphere enables the propagation of radio signals around the world?

Select	Answer
A	The magnetosphere
B	The stratosphere
C	The troposphere
D	The ionosphere

11. - T3B11

What is the approximate velocity of a radio wave as it travels through free space?

Select	Answer
A	186,000 miles per hour
B	3000 kilometers per second
C	300,000,000 meters per second
D	300,000 miles per hour

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

13. - T4A07

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

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

14. - T4B04

What is a way to enable quick access to a favorite frequency on your transceiver?

Select	Answer
A	Store the frequency in a memory channel
B	Use the scan mode to select the desired frequency
C	Enable the CTCSS tones
D	Disable the CTCSS tones

15. - T5A10

Which term describes the rate at which electrical energy is used?

Select	Answer
A	Resistance
B	Power
C	Current
D	Voltage

16. - T5B03

How many volts are equal to one kilovolt?

Select	Answer
A	One one-thousandth of a volt
B	One hundred volts
C	One million volts
D	One thousand volts

17. - T5C12

What is meant by the term impedance?

Select	Answer
A	It is the inverse of resistance
B	It is a measure of the Q or Quality Factor of a component
C	It is a measure of the power handling capability of a component
D	It is a measure of the opposition to AC current flow in a circuit

18. - T5D09

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

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

19. - T6A02

What type of component is often used as an adjustable volume control?

Select	Answer
A	Potentiometer
B	Fixed resistor
C	Power resistor
D	Transformer

20. - T6B12

What is the term that describes a transistor's ability to amplify a signal?

Select	Answer
A	Forward voltage drop
B	Gain
C	Forward resistance
D	On resistance

21. - T6C07

What is component 8 in figure T2?

Select	Answer
A	Resistor
B	Regulator IC
C	Light emitting diode
D	Inductor

22. - T6D04

Which of the following can be used to display signal strength on a numeric scale?

Select	Answer
A	Potentiometer
B	Meter
C	Transistor
D	Relay

23. - T7A01

Which term describes the ability of a receiver to detect the presence of a signal?

Select	Answer
A	Sensitivity
B	Linearity
C	Total Harmonic Distortion
D	Selectivity

24. - T7B01

What can you do if you are told your FM handheld or mobile transceiver is over-deviating?

Select	Answer
A	Change to a higher power level
B	Talk farther away from the microphone
C	Talk louder into the microphone
D	Let the transceiver cool off

25. - T7C12

Which of the following is a common use of coaxial cable?

Select	Answer
A	Carrying RF signals between a radio and antenna
B	Securing masts, tubing, and other cylindrical objects on towers
C	Connecting data signals from a TNC to a computer
D	Carrying dc power from a vehicle battery to a mobile radio

26. - T7D06

Which of the following might damage a multimeter?

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

27. - T8A02

What type of modulation is most commonly used for VHF packet radio transmissions?

Select	Answer
A	AM
B	SSB
C	Spread Spectrum
D	FM

28. - T8B01

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

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

29. - T8C12

What is meant by Voice Over Internet Protocol (VoIP) as used in amateur radio?

Select	Answer
A	A set of guidelines for working DX during contests using Internet access
B	A technique for measuring the modulation quality of a transmitter using remote sites monitored via the Internet
C	A method of delivering voice communications over the Internet using digital techniques
D	A set of rules specifying how to identify your station when linked over the Internet to another station

30. - T8D08

Which of the following may be included in packet transmissions?

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

31. - T9A03

Which of the following describes a simple dipole mounted so the conductor is parallel to the Earth's surface?

Select	Answer
A	A ground wave antenna
B	A rhombic antenna
C	A horizontally polarized antenna
D	A vertically polarized antenna

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. - T0A05

Why is it unwise to install a 20-ampere fuse in the place of a 5-ampere fuse?

Select	Answer
A	The larger fuse would be likely to blow because it is rated for higher current
B	The power supply ripple would greatly increase
C	All of these choices are correct
D	Excessive current could cause a fire

34. - T0B12

Which of the following is good practice when installing ground wires on a tower for lightning protection?

Select	Answer
A	Ensure that connections are short and direct
B	All of these choices are correct
C	Put a loop in the ground connection to prevent water damage to the ground system
D	Make sure that all bends in the ground wires are clean, right angle bends

35. - T0C03

What is the maximum power level that an amateur radio station may use at VHF frequencies before an RF exposure evaluation is required?

Select	Answer
A	1500 watts PEP transmitter output
B	50 watts PEP reflected power
C	1 watt forward power
D	50 watts PEP at the antenna

Figure T2