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

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 6 meter, 2 meter, and 70 cm bands
B	The 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. - T1C09

What is the grace period following the expiration of an amateur license within which the license may be renewed?

Select	Answer
A	Five years
B	Two years
C	Ten years
D	Three years

4. - T1D05

When may amateur radio operators use their stations to notify other amateurs of the availability of equipment for sale or trade?

Select	Answer
A	When the asking price is less than its appraised value
B	When the equipment is normally used in an amateur station and such activity is not conducted on a regular basis
C	When the equipment is not the personal property of either the station licensee or the control operator or their close relatives
D	When the asking price is $100.00 or less

5. - T1E03

Who must designate the station control operator?

Select	Answer
A	The FCC
B	The ITU
C	The station licensee
D	The frequency coordinator

6. - T1F10

Who is accountable should a repeater inadvertently retransmit communications that violate the FCC rules?

Select	Answer
A	Both the originating station and the repeater owner
B	The control operator of the originating station
C	The control operator of the repeater
D	The owner of the repeater

7. - T2A02

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

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

8. - T2B13

Which of the following is true of the use of SSB phone in amateur bands above 50 MHz?

Select	Answer
A	It is permitted only on when power is limited to no more than 100 watts
B	It is permitted only by holders of a General Class or higher license
C	It is permitted in at least some portion of all the amateur bands above 50 MHz
D	It is permitted only on repeaters

9. - T2C10

What is the preamble in a formal traffic message?

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

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	Either vertically or horizontally polarized antennas may be used for transmission or reception
C	FM voice is unusable
D	Both the transmitting and receiving antennas must be of the same polarization

11. - T3B08

What are the frequency limits of the VHF spectrum?

Select	Answer
A	300 to 3000 kHz
B	30 to 300 kHz
C	300 to 3000 MHz
D	30 to 300 MHz

12. - T3C10

What is the radio horizon?

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

13. - T4A02

How might a computer be used as part of an amateur radio station?

Select	Answer
A	For generating and decoding digital signals
B	All of these choices are correct
C	For logging contacts and contact information
D	For sending and/or receiving CW

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	Disable the CTCSS tones
C	Use the scan mode to select the desired frequency
D	Enable the CTCSS tones

15. - T5A12

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

Select	Answer
A	Pulse rate
B	Wavelength
C	Frequency
D	Speed

16. - T5B07

If a frequency readout calibrated in megahertz shows a reading of 3.525 MHz, what would it show if it were calibrated in kilohertz?

Select	Answer
A	35.25 kHz
B	3,525,000 kHz
C	3525 kHz
D	0.003525 kHz

17. - T5C05

What is the unit of frequency?

Select	Answer
A	Henry
B	Farad
C	Hertz
D	Tesla

18. - T5D11

What is the voltage across a 10-ohm resistor if a current of 1 ampere flows through it?

Select	Answer
A	9 volts
B	10 volts
C	1 volt
D	11 volts

19. - T6A02

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

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

20. - T6B09

What are the names of the two electrodes of a diode?

Select	Answer
A	Source and drain
B	Gate and base
C	Plus and minus
D	Anode and cathode

21. - T6C06

What is component 6 in figure T2?

Select	Answer
A	Capacitor
B	Transistor
C	Resistor
D	Regulator IC

22. - T6D04

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

Select	Answer
A	Meter
B	Potentiometer
C	Relay
D	Transistor

23. - T7A09

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

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

24. - T7B01

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

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

25. - T7C04

What reading on an SWR meter indicates a perfect impedance match between the antenna and the feed line?

Select	Answer
A	1 to 1
B	1 to 3
C	10 to 1
D	2 to 1

26. - T7D03

How is an ammeter usually connected to a circuit?

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

27. - T8A06

Which sideband is normally used for 10 meter HF, VHF and UHF single-sideband communications?

Select	Answer
A	Lower sideband
B	Suppressed sideband
C	Upper sideband
D	Inverted sideband

28. - T8B09

What causes spin fading when referring to satellite signals?

Select	Answer
A	Rotation of the satellite and its antennas
B	Doppler shift of the received signal
C	Interfering signals within the satellite uplink band
D	Circular polarized noise interference radiated from the sun

29. - T8C04

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

Select	Answer
A	Be sure to sign only the last two letters of your call if there is a pileup calling the station
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	All of these choices are correct

30. - T8D09

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

Select	Answer
A	International Morse
B	Baudot
C	Hamming
D	Gray

31. - T9A08

What is the approximate length, in inches, of a quarter-wavelength vertical antenna for 146 MHz?

Select	Answer
A	19
B	12
C	50
D	112

32. - T9B07

Which of the following is true of PL-259 type coax connectors?

Select	Answer
A	They are commonly used at HF frequencies
B	They are water tight
C	They are a bayonet type connector
D	They are preferred for microwave operation

33. - T0A05

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

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

34. - T0B04

Which of the following is an important safety precaution to observe when putting up an antenna tower?

Select	Answer
A	Insulate the base of the tower to avoid lightning strikes
B	All of these choices are correct
C	Look for and stay clear of any overhead electrical wires
D	Wear a ground strap connected to your wrist at all times

35. - T0C10

Why is duty cycle one of the factors used to determine safe RF radiation exposure levels?

Select	Answer
A	It affects the average exposure of people to radiation
B	It takes into account the thermal effects of the final amplifier
C	It takes into account the antenna feed line loss
D	It affects the peak exposure of people to radiation

Figure T2