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. - T1A04

Which of the following meets the FCC definition of harmful interference?

Select	Answer
A	That which seriously degrades, obstructs, or repeatedly interrupts a radio communication service operating in accordance with the Radio Regulations
B	Static from lightning storms
C	Radio transmissions that annoy users of a repeater
D	Unwanted radio transmissions that cause costly harm to radio station apparatus

2. - T1B05

Which 70 cm frequency is authorized to a Technician Class license holder operating in ITU Region 2?

Select	Answer
A	53.350 MHz
B	146.520 MHz
C	222.520 MHz
D	443.350 MHz

3. - T1C10

How soon after passing the examination for your first amateur radio license may you operate a transmitter on an amateur service frequency?

Select	Answer
A	As soon as your operator/station license grant appears in the FCCs license database
B	You must wait until you receive your license in the mail from the FCC
C	Immediately
D	30 days after the test date

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 $100.00 or less
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 less than its appraised value

5. - T1E09

What type of control is being used when the control operator is at the control point?

Select	Answer
A	Automatic control
B	Unattended control
C	Radio control
D	Local control

6. - T1F12

How many persons are required to be members of a club for a club station license to be issued by the FCC?

Select	Answer
A	At least 2
B	At least 5
C	At least 4
D	A trustee and 2 officers

7. - T2A06

What must an amateur operator do when making on-air transmissions to test equipment or antennas?

Select	Answer
A	Make test transmissions only after 10:00 p.m. local time
B	Notify the FCC of the test transmission
C	Properly identify the transmitting station
D	State the purpose of the test during the test procedure

8. - T2B07

What could cause your FM signal to interfere with stations on nearby frequencies?

Select	Answer
A	All of these choices are correct
B	Incorrect CTCSS Tone
C	SWR too high
D	Microphone gain too high, causing over-deviation

9. - T2C06

Which of the following is an accepted practice to get the immediate attention of a net control station when reporting an emergency?

Select	Answer
A	Begin your transmission by saying "Priority" or "Emergency" followed by your call sign
B	Press the push-to-talk button three times
C	Repeat the words SOS three times followed by the call sign of the reporting station
D	Play a pre-recorded emergency alert tone followed by your call sign

10. - T3A09

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

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

11. - T3B03

What are the two components of a radio wave?

Select	Answer
A	Voltage and current
B	Electric and magnetic fields
C	AC and DC
D	Ionizing and non-ionizing radiation

12. - T3C01

Why are direct (not via a repeater) UHF signals rarely heard from stations outside your local coverage area?

Select	Answer
A	They are too weak to go very far
B	UHF signals are usually not reflected by the ionosphere
C	FCC regulations prohibit them from going more than 50 miles
D	They collide with trees and shrubbery and fade out

13. - T4A05

Where should an in-line SWR meter be connected to monitor the standing wave ratio of the station antenna system?

Select	Answer
A	In series with the feed line, between the transmitter and antenna
B	In parallel with the push-to-talk line and the antenna
C	In series with the power supply cable, as close as possible to the radio
D	In series with the station's ground

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. - T5A01

Electrical current is measured in which of the following units?

Select	Answer
A	Amperes
B	Ohms
C	Volts
D	Watts

16. - T5B08

How many microfarads are 1,000,000 picofarads?

Select	Answer
A	1,000,000,000 microfarads
B	0.001 microfarads
C	1 microfarad
D	1000 microfarads

17. - T5C07

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

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

18. - T5D11

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

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

19. - T6A09

What electrical component is used to protect other circuit components from current overloads?

Select	Answer
A	Capacitor
B	All of these choices are correct
C	Inductor
D	Fuse

20. - T6B04

Which of the following components can be made of three layers of semiconductor material?

Select	Answer
A	Transistor
B	Alternator
C	Triode
D	Pentagrid converter

21. - T6C09

What is component 4 in figure T2?

Select	Answer
A	Double-pole switch
B	Potentiometer
C	Variable inductor
D	Transformer

22. - T6D01

Which of the following devices or circuits changes an alternating current into a varying direct current signal?

Select	Answer
A	Rectifier
B	Reflector
C	Amplifier
D	Transformer

23. - T7A11

Where is an RF preamplifier installed?

Select	Answer
A	At the output of the transmitter's power amplifier
B	Between a transmitter and antenna tuner
C	At the receiver's audio output
D	Between the antenna and receiver

24. - T7B09

What is a Part 15 device?

Select	Answer
A	A type of test set used to determine whether a transmitter is in compliance with FCC regulation 91.15
B	A type of amateur radio that can legally be used in the citizens band
C	A device for long distance communications using special codes sanctioned by the International Amateur Radio Union
D	An unlicensed device that may emit low powered radio signals on frequencies used by a licensed service

25. - T7C12

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

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

26. - T7D04

Which instrument is used to measure electric current?

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

27. - T8A01

Which of the following is a form of amplitude modulation?

Select	Answer
A	Phase shift keying
B	Single sideband
C	Spread-spectrum
D	Packet radio

28. - T8B01

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

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

29. - T8C02

Which of these items would be useful for a hidden transmitter hunt?

Select	Answer
A	Calibrated SWR meter
B	A calibrated noise bridge
C	A directional antenna
D	All of these choices are correct

30. - T8D09

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

Select	Answer
A	Baudot
B	Gray
C	Hamming
D	International Morse

31. - T9A05

How would you change a dipole antenna to make it resonant on a higher frequency?

Select	Answer
A	Shorten it
B	Lengthen it
C	Insert coils in series with radiating wires
D	Add capacitive loading to the ends of the radiating wires

32. - T9B09

What might cause erratic changes in SWR readings?

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

33. - T0A05

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

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

34. - T0B08

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

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

35. - T0C12

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

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

Figure T2