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

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	CW and RTTY
B	CW and SSB
C	CW only
D	SSB only

3. - T1C05

Which of the following is a vanity call sign which a technician class amateur operator might select if available?

Select	Answer
A	KA1X
B	W1XX
C	K1XXX
D	All of these choices are correct

4. - T1D11

When may an amateur station transmit without identifying?

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

5. - T1E04

What determines the transmitting privileges of an amateur station?

Select	Answer
A	The class of operator license held by the control operator
B	The frequency authorized by the frequency coordinator
C	The highest class of operator license held by anyone on the premises
D	The class of operator license held by the station licensee

6. - T1F05

What method of call sign identification is required for a station transmitting phone signals?

Select	Answer
A	Send the call sign followed by the indicator R
B	Send the call sign using CW or phone emission
C	Send the call sign using only phone emission
D	Send the call sign followed by the indicator RPT

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

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

9. - T2C05

Which of the following describes the Radio Amateur Civil Emergency Service (RACES)?

Select	Answer
A	A radio service using amateur stations for emergency management or civil defense communications
B	A radio service using amateur frequencies for emergency management or civil defense communications
C	All of these choices are correct
D	An emergency service using amateur operators certified by a civil defense organization as being enrolled in that organization

10. - T3A05

When using a directional antenna, how might your station be able to access a distant repeater if buildings or obstructions are blocking the direct line of sight path?

Select	Answer
A	Change from vertical to horizontal polarization
B	Try the long path
C	Try to find a path that reflects signals to the repeater
D	Increase the antenna SWR

11. - T3B04

How fast does a radio wave travel through free space?

Select	Answer
A	At the speed of light
B	At the speed of sound
C	Its speed increases as the frequency increases
D	Its speed is inversely proportional to its wavelength

12. - T3C04

Which of the following propagation types is most commonly associated with occasional strong over-the-horizon signals on the 10, 6, and 2 meter bands?

Select	Answer
A	D layer absorption
B	Sporadic E
C	Backscatter
D	Gray-line propagation

13. - T4A01

Which of the following is true concerning the microphone connectors on amateur transceivers?

Select	Answer
A	Un-keyed connectors allow any microphone to be connected
B	All transceivers using the same connector type are wired identically
C	Some connectors include push-to-talk and voltages for powering the microphone
D	All transceivers use the same microphone connector type

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. - T5A08

Which of the following is a good electrical insulator?

Select	Answer
A	Aluminum
B	Copper
C	Glass
D	Mercury

16. - T5B11

What is the approximate amount of change, measured in decibels (dB), of a power increase from 20 watts to 200 watts?

Select	Answer
A	18 dB
B	10 dB
C	12 dB
D	28 dB

17. - T5C01

What is the ability to store energy in an electric field called?

Select	Answer
A	Tolerance
B	Resistance
C	Inductance
D	Capacitance

18. - T5D02

What formula is used to calculate voltage in a circuit?

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

19. - T6A09

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

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

20. - T6B06

How is the cathode lead of a semiconductor diode usually identified?

Select	Answer
A	With a stripe
B	With the word cathode
C	All of these choices are correct
D	With the letter C

21. - T6C08

What is component 9 in figure T2?

Select	Answer
A	Variable resistor
B	Variable inductor
C	Variable capacitor
D	Variable transformer

22. - T6D05

What type of circuit controls the amount of voltage from a power supply?

Select	Answer
A	Oscillator
B	Phase inverter
C	Filter
D	Regulator

23. - T7A07

What is meant by term PTT?

Select	Answer
A	Precise tone transmissions used to limit repeater access to only certain signals
B	Pre-transmission tuning to reduce transmitter harmonic emission
C	A primary transformer tuner use to match antennas
D	The push to talk function which switches between receive and transmit

24. - T7B06

Which of the following actions should you take if a neighbor tells you that your stations transmissions are interfering with their radio or TV reception?

Select	Answer
A	Tell them that your license gives you the right to transmit and nothing can be done to reduce the interference
B	Make sure that your station is functioning properly and that it does not cause interference to your own radio or television when it is tuned to the same channel
C	Immediately turn off your transmitter and contact the nearest FCC office for assistance
D	Install a harmonic doubler on the output of your transmitter and tune it until the interference is eliminated

25. - T7C07

What happens to power lost in a feed line?

Select	Answer
A	It can cause distortion of your signal
B	It is converted into heat
C	It increases the SWR
D	It comes back into your transmitter and could cause damage

26. - T7D11

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

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

27. - T8A06

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

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

28. - T8B10

What do the initials LEO tell you about an amateur satellite?

Select	Answer
A	The satellite uses Light Emitting Optics
B	The satellite battery is in Low Energy Operation mode
C	The satellite is in a Low Earth Orbit
D	The satellite is performing a Lunar Ejection Orbit maneuver

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

30. - T8D09

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

Select	Answer
A	Gray
B	Baudot
C	International Morse
D	Hamming

31. - T9A04

What is a disadvantage of the rubber duck antenna supplied with most handheld radio transceivers?

Select	Answer
A	If the rubber end cap is lost it will unravel very quickly
B	It transmits a circularly polarized signal
C	It does not transmit or receive as effectively as a full-sized antenna
D	All of these choices are correct

32. - T9B08

Why should coax connectors exposed to the weather be sealed against water intrusion?

Select	Answer
A	To prevent an increase in feed line loss
B	To prevent interference to telephones
C	To keep the jacket from becoming loose
D	All of these choices are correct

33. - T0A10

What can happen if a lead-acid storage battery is charged or discharged too quickly?

Select	Answer
A	All of these choices are correct
B	The battery could overheat and give off flammable gas or explode
C	The voltage can become reversed
D	The memory effect will reduce the capacity of the battery

34. - T0B09

Why should you avoid attaching an antenna to a utility pole?

Select	Answer
A	The antenna will not work properly because of induced voltages
B	The antenna could contact high-voltage power wires
C	The utility company will charge you an extra monthly fee
D	All of these choices are correct

35. - T0C09

How can you make sure your station stays in compliance with RF safety regulations?

Select	Answer
A	By re-evaluating the station whenever an item of equipment is changed
B	All of these choices are correct
C	By informing the FCC of any changes made in your station
D	By making sure your antennas have low SWR

Figure T2