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. - T1A07

What is the FCC Part 97 definition of telemetry?

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

2. - T1B03

Which frequency is within the 6 meter band?

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

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

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 engaging in communications on behalf of their employer
B	When re-broadcasting weather alerts during a RACES net
C	When notifying other amateur operators of the availability for sale or trade of apparatus
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	All licensed amateurs who are present at the operation
B	The control operator and the station licensee are equally responsible
C	Only the station licensee
D	Only the control operator

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 10 minutes during and at the end of a communication
C	At the beginning of each contact, and every 10 minutes thereafter
D	At least every 15 minutes during and at the end of a communication

7. - T2A02

What is the national calling frequency for FM simplex operations in the 70 cm band?

Select	Answer
A	446.000 MHz
B	145.000 MHz
C	146.520 MHz
D	432.100 MHz

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	Carrier squelch
B	DTMF
C	Tone burst
D	CTCSS

9. - T2C01

When do the FCC rules NOT apply to the operation of an amateur station?

Select	Answer
A	When operating a RACES station
B	When operating under special ARES rules
C	Never, FCC rules always apply
D	When operating under special FEMA rules

10. - T3A04

What can happen if the antennas at opposite ends of a VHF or UHF line of sight radio link are not using the same polarization?

Select	Answer
A	Nothing significant will happen
B	Signals have an echo effect on voices
C	The modulation sidebands might become inverted
D	Signals could be significantly weaker

11. - T3B05

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

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

12. - T3C10

What is the radio horizon?

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

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 generating and decoding digital signals
C	For logging contacts and contact information
D	For sending and/or receiving CW

14. - T4B11

Which of the following describes the common meaning of the term "repeater offset"?

Select	Answer
A	The distance between the repeaters transmit and receive antennas
B	The time delay before the repeater timer resets
C	Matching the antenna impedance to the feed line impedance
D	The difference between the repeaters transmit and receive frequencies

15. - T5A10

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

Select	Answer
A	Resistance
B	Voltage
C	Current
D	Power

16. - T5B12

Which of the following frequencies is equal to 28,400 kHz?

Select	Answer
A	2.800 MHz
B	28.400 MHz
C	28.400 kHz
D	284.00 MHz

17. - T5C09

How much power is being used in a circuit when the applied voltage is 13.8 volts DC and the current is 10 amperes?

Select	Answer
A	23.8 watts
B	3.8 watts
C	138 watts
D	0.7 watts

18. - T5D03

What formula is used to calculate resistance in a circuit?

Select	Answer
A	Resistance (R) equals voltage (E) multiplied by current (I)
B	Resistance (R) equals voltage (E) minus current (I)
C	Resistance (R) equals voltage (E) divided by current (I)
D	Resistance (R) equals voltage (E) added to current (I)

19. - T6A02

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

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

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	Capacitors
C	Resistors
D	Transistors

21. - T6C10

What is component 3 in figure T3?

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

22. - T6D10

What is the function of component 2 in Figure T1?

Select	Answer
A	Convert electrical energy into radio waves
B	Control the flow of current
C	Give off light when current flows through it
D	Supply electrical energy

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. - T7B07

Which of the following may be useful in correcting a radio frequency interference problem?

Select	Answer
A	Band-reject and band-pass filters
B	Low-pass and high-pass filters
C	Snap-on ferrite chokes
D	All of these choices are correct

25. - T7C12

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

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

26. - T7D03

How is an ammeter usually connected to a circuit?

Select	Answer
A	In quadrature with the circuit
B	In series with the circuit
C	In phase with the circuit
D	In parallel with the circuit

27. - T8A03

Which type of voice mode is most often used for long-distance (weak signal) contacts on the VHF and UHF bands?

Select	Answer
A	FM
B	PM
C	DRM
D	SSB

28. - T8B04

Which amateur stations may make contact with an amateur station on the International Space Station using 2 meter and 70 cm band amateur radio frequencies?

Select	Answer
A	Any amateur holding a Technician or higher class license
B	Only members of amateur radio clubs at NASA facilities
C	Only the astronaut's family members who are hams
D	You cannot talk to the ISS on amateur radio frequencies

29. - T8C04

Which of the following is good procedure when contacting another station in a radio contest?

Select	Answer
A	All of these choices are correct
B	Work the station twice to be sure that you are in his log
C	Send only the minimum information needed for proper identification and the contest exchange
D	Be sure to sign only the last two letters of your call if there is a pileup calling the station

30. - T8D09

What code is used when sending CW in the amateur bands?

Select	Answer
A	International Morse
B	Gray
C	Baudot
D	Hamming

31. - T9A12

What is a reason to use a properly mounted 5/8 wavelength antenna for VHF or UHF mobile service?

Select	Answer
A	The 5/8 wavelength antenna completely eliminates distortion caused by reflected signals
B	The 5/8 wavelength antenna offers a 10-times power gain over a 1/4 wavelength design
C	It offers a lower angle of radiation and more gain than a 1/4 wavelength antenna and usually provides improved coverage
D	It features a very high angle of radiation and is better for communicating via a repeater

32. - T9B09

What might cause erratic changes in SWR readings?

Select	Answer
A	A loose connection in an antenna or a feed line
B	The transmitter is being over-modulated
C	Interference from other stations is distorting your signal
D	The transmitter is being modulated

33. - T0A02

How does current flowing through the body cause a health hazard?

Select	Answer
A	All of these choices are correct
B	It causes involuntary muscle contractions
C	By heating tissue
D	It disrupts the electrical functions of cells

34. - T0B08

What is considered to be a proper grounding method for a tower?

Select	Answer
A	A connection between the tower base and a cold water pipe
B	A single four-foot ground rod, driven into the ground no more than 12 inches from the base
C	A ferrite-core RF choke connected between the tower and ground
D	Separate eight-foot long ground rods for each tower leg, bonded to the tower and each other

35. - T0C05

Why do exposure limits vary with frequency?

Select	Answer
A	Higher frequency RF fields are transient in nature
B	Lower frequency RF fields have more energy than higher frequency fields
C	The human body absorbs more RF energy at some frequencies than at others
D	Lower frequency RF fields do not penetrate the human body

Figure T3

Figure T1