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. - T1A11

When is willful interference to other amateur radio stations permitted?

Select	Answer
A	Only during a contest
B	At any time, amateurs are not protected from willful interference
C	Only if the station being interfered with is expressing extreme religious or political views
D	At no time

2. - T1B04

Which amateur band are you using when your station is transmitting on 146.52 MHz?

Select	Answer
A	20 meter band
B	6 meter band
C	2 meter band
D	14 meter band

3. - T1C06

From which of the following locations may an FCC-licensed amateur station transmit, in addition to places where the FCC regulates communications?

Select	Answer
A	From any vessel or craft located in international waters and documented or registered in the United States
B	From within any country that is a member of the United Nations
C	From within any country that belongs to the International Telecommunications Union
D	From anywhere within in ITU Regions 2 and 3

4. - T1D11

When may an amateur station transmit without identifying?

Select	Answer
A	When transmitting signals to control a model craft
B	When the transmitted power level is below 1 watt
C	When the transmissions are unmodulated
D	When the transmissions are of a brief nature to make station adjustments

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	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
D	Any person over the age of 18

6. - T1F03

When is an amateur station required to transmit its assigned call sign?

Select	Answer
A	At least every 15 minutes during and at the end of a communication
B	At least once during each transmission
C	At the beginning of each contact, and every 10 minutes thereafter
D	At least every 10 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	146.520 MHz
B	446.000 MHz
C	145.000 MHz
D	432.100 MHz

8. - T2B04

Which of the following common problems might cause you to be able to hear but not access a repeater even when transmitting with the proper offset?

Select	Answer
A	The repeater receiver may require a CTCSS tone for access
B	The repeater receiver may require an audio tone burst for access
C	All of these choices are correct
D	The repeater receiver may require a DCS tone sequence for access

9. - T2C02

What is one way to recharge a 12-volt lead-acid station battery if the commercial power is out?

Select	Answer
A	Connect the battery in parallel with a vehicles battery and run the engine
B	Add acid to the battery
C	All of these choices are correct
D	Cool the battery in ice for several hours

10. - T3A06

What term is commonly used to describe the rapid fluttering sound sometimes heard from mobile stations that are moving while transmitting?

Select	Answer
A	Flip-flopping
B	Picket fencing
C	Pulsing
D	Frequency shifting

11. - T3B05

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

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

12. - T3C11

Why do VHF and UHF radio signals usually travel somewhat farther than the visual line of sight distance between two stations?

Select	Answer
A	Radio waves are blocked by dust particles
B	Radio waves are not blocked by dust particles
C	Radio signals move somewhat faster than the speed of light
D	The Earth seems less curved to radio waves than to light

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

14. - T4B09

Which of the following is an appropriate receive filter bandwidth to select in order to minimize noise and interference for SSB reception?

Select	Answer
A	5000 Hz
B	1000 Hz
C	2400 Hz
D	500 Hz

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. - T5B01

How many milliamperes is 1.5 amperes?

Select	Answer
A	15,000 milliamperes
B	1,500 milliamperes
C	15 milliamperes
D	150 milliamperes

17. - T5C13

What are the units of impedance?

Select	Answer
A	Amperes
B	Coulombs
C	Ohms
D	Volts

18. - T5D10

What is the voltage across a 2-ohm resistor if a current of 0.5 amperes flows through it?

Select	Answer
A	0.25 volts
B	2.5 volts
C	1.5 volts
D	1 volt

19. - T6A10

Which of the following battery types is rechargeable?

Select	Answer
A	All of these choices are correct
B	Lithium-ion
C	Lead-acid gel-cell
D	Nickel-metal hydride

20. - T6B01

What class of electronic components is capable of using a voltage or current signal to control current flow?

Select	Answer
A	Transistors
B	Resistors
C	Inductors
D	Capacitors

21. - T6C11

What is component 4 in figure T3?

Select	Answer
A	Transmitter
B	Ground
C	Dummy load
D	Antenna

22. - T6D10

What is the function of component 2 in Figure T1?

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

23. - T7A03

Which of the following is used to convert a radio signal from one frequency to another?

Select	Answer
A	Amplifier
B	Inverter
C	Phase splitter
D	Mixer

24. - T7B11

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

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

25. - T7C04

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

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

26. - T7D11

Which of the following precautions should be taken when measuring circuit resistance with an ohmmeter?

Select	Answer
A	Ensure that the circuit is grounded
B	Ensure that the circuit is operating at the correct frequency
C	Ensure that the applied voltages are correct
D	Ensure that the circuit is not powered

27. - T8A02

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

Select	Answer
A	Spread Spectrum
B	SSB
C	AM
D	FM

28. - T8B09

What causes spin fading when referring to satellite signals?

Select	Answer
A	Interfering signals within the satellite uplink band
B	Doppler shift of the received signal
C	Rotation of the satellite and its antennas
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	Send only the minimum information needed for proper identification and the contest exchange
B	Be sure to sign only the last two letters of your call if there is a pileup calling the station
C	All of these choices are correct
D	Work the station twice to be sure that you are in his log

30. - T8D10

Which of the following can be used to transmit CW in the amateur bands?

Select	Answer
A	Electronic Keyer
B	All of these choices are correct
C	Straight Key
D	Computer Keyboard

31. - T9A06

What type of antennas are the quad, Yagi, and dish?

Select	Answer
A	Loop antennas
B	Isotropic antennas
C	Non-resonant antennas
D	Directional antennas

32. - T9B10

What electrical difference exists between the smaller RG-58 and larger RG-8 coaxial cables?

Select	Answer
A	There is no significant difference between the two types
B	RG-58 cable has less loss at a given frequency
C	RG-8 cable has less loss at a given frequency
D	RG-58 cable can handle higher power levels

33. - T0A11

What kind of hazard might exist in a power supply when it is turned off and disconnected?

Select	Answer
A	Circulating currents inside the transformer might cause damage
B	Static electricity could damage the grounding system
C	You might receive an electric shock from the charged stored in large capacitors
D	The fuse might blow if you remove the cover

34. - T0B03

Under what circumstances is it safe to climb a tower without a helper or observer?

Select	Answer
A	When no mechanical work is being performed
B	Never
C	When no electrical work is being performed
D	When the work being done is not more than 20 feet above the ground

35. - T0C12

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

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

Figure T3

Figure T1