Practice Exam

T1E07

1. When the control operator is not the station licensee, who is responsible for the proper operation of the station?

• A. The control operator and the station licensee
• B. All licensed amateurs who are present at the operation
• C. Only the control operator
• D. Only the station licensee

T7A06

2. What device converts the RF input and output of a transceiver to another band?

• A. Low-pass filter
• B. High-pass filter
• C. Transverter
• D. Phase converter

T1A11

3. When is willful interference to other amateur radio stations permitted?

• A. At no time
• B. When making short test transmissions
• C. At any time, stations in the Amateur Radio Service are not protected from willful interference
• D. To stop another amateur station that is breaking the FCC rules

T9A09

4. What is the approximate length, in inches, of a half-wavelength 6 meter dipole antenna?

• A. 112
• B. 236
• C. 6
• D. 50

T5D11

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

• A. 1 volt
• B. 10 volts
• C. 9 volts
• D. 11 volts

T0C09

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

• A. All these choices are correct
• B. By making sure your antennas have low SWR
• C. By informing the FCC of any changes made in your station
• D. By re-evaluating the station whenever an item in the transmitter or antenna system is changed

T4A02

7. Which of the following should be considered when selecting an accessory SWR meter?

• A. All these choices are correct
• B. The distance that the meter will be located from the antenna
• C. The frequency and power level at which the measurements will be made
• D. The types of modulation being used at the station

T8B02

8. What is the impact of using excessive effective radiated power on a satellite uplink?

• A. Blocking access by other users
• B. Possibility of rebooting the satellite control computer
• C. Overloading the satellite batteries
• D. Possibility of commanding the satellite to an improper mode

T8C09

9. Which of the following protocols enables an amateur station to transmit through a repeater without using a radio to initiate the transmission?

• A. DMR
• B. D-STAR
• C. EchoLink
• D. IRLP

T7D11

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

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

T2C11

11. What is meant by "check" in a radiogram header?

• A. A box on the message form that indicates that the message was received and/or relayed
• B. The call sign of the originating station
• C. A list of stations that have relayed the message
• D. The number of words or word equivalents in the text portion of the message

T3A12

12. What is the effect of fog and rain on signals in the 10 meter and 6 meter bands?

• A. Absorption
• B. Range increase
• C. There is little effect
• D. Deflection

T8A09

13. What is the approximate bandwidth of a VHF repeater FM voice signal?

• A. Between 10 and 15 kHz
• B. Between 50 and 125 kHz
• C. About 150 kHz
• D. Less than 500 Hz

T6C01

14. What is the name of an electrical wiring diagram that uses standard component symbols?

• A. Connector pinout
• B. Flow chart
• C. Bill of materials
• D. Schematic

T6A08

15. What is the function of an SPDT switch?

• A. A single circuit is switched between one of two other circuits
• B. A single circuit is opened or closed
• C. Two circuits are each switched between one of two other circuits
• D. Two circuits are opened or closed

T5C07

16. What is the abbreviation for megahertz?

• A. MH
• B. mh
• C. Mhz
• D. MHz

T7B04

17. Which of the following could you use to cure distorted audio caused by RF current on the shield of a microphone cable?

• A. Band-pass filter
• B. Preamplifier
• C. Ferrite choke
• D. Low-pass filter

T0A07

18. Where should a lightning arrester be installed in a coaxial feed line?

• A. At the output connector of a transceiver
• B. At the antenna feed point
• C. On a grounded panel near where feed lines enter the building
• D. At the ac power service panel

T1F08

19. What is the definition of third party communications?

• A. A message from a control operator to another amateur station control operator on behalf of another person
• B. Operation when the transmitting equipment is licensed to a person other than the control operator
• C. Amateur radio communications where three stations are in communications with one another
• D. Temporary authorization for an unlicensed person to transmit on the amateur bands for technical experiments

T2A11

20. What term describes an amateur station that is transmitting and receiving on the same frequency?

• A. Full duplex
• B. Simplex
• C. Multiplex
• D. Diplex

T7C03

21. What does a dummy load consist of?

• A. A non-inductive resistor mounted on a heat sink
• B. A 50-ohm reactance used to terminate a transmission line
• C. A high-gain amplifier and a TR switch
• D. A low-voltage power supply and a DC relay

T0B08

22. Which is a proper grounding method for a tower?

• A. A single four-foot ground rod, driven into the ground no more than 12 inches from the base
• 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. Separate eight-foot ground rods for each tower leg, bonded to the tower and each other

T4B09

23. How is a specific group of stations selected on a digital voice transceiver?

• A. By retrieving the frequencies from transceiver memory
• B. By activating automatic identification
• C. By entering the group's identification code
• D. By enabling the group's CTCSS tone

T9B11

24. Which of the following types of feed line has the lowest loss at VHF and UHF?

• A. Multi-conductor unbalanced cable
• B. 50-ohm flexible coax
• C. 75-ohm flexible coax
• D. Air-insulated hardline

T1B12

25. Except for some specific restrictions, what is the maximum peak envelope power output for Technician class operators using frequencies above 30 MHz?

• A. 50 watts
• B. 1500 watts
• C. 100 watts
• D. 500 watts

T5B13

26. Which is equal to 2425 MHz?

• A. 2425 GHz
• B. 2.425 GHz
• C. 24.25 GHz
• D. 0.002425 GHz

T6D03

27. Which of the following is a reason to use shielded wire?

• A. To prevent coupling of unwanted signals to or from the wire
• B. To increase the current carrying capability of the wire
• C. To decrease the resistance of DC power connections
• D. To couple the wire to other signals

T5A09

28. Which of the following describes alternating current?

• A. Current that alternates between a positive direction and zero
• B. Current that alternates between positive and negative directions
• C. Current that alternates between a negative direction and zero
• D. All these answers are correct

T3C02

29. What is a characteristic of HF communication compared with communications on VHF and higher frequencies?

• A. HF antennas are generally smaller
• B. Long-distance ionospheric propagation is far more common on HF
• C. HF accommodates wider bandwidth signals
• D. There is less atmospheric interference (static) on HF

T3B01

30. What is the relationship between the electric and magnetic fields of an electromagnetic wave?

• A. They are in parallel
• B. They revolve in opposite directions
• C. They travel at different speeds
• D. They are at right angles

T6B05

31. What type of transistor has a gate, drain, and source?

• A. Varistor
• B. Tesla-effect
• C. Bipolar junction
• D. Field-effect

T1C09

32. What is the grace period for renewal if an amateur license expires?

• A. Three years
• B. Five years
• C. Two years
• D. Ten years

T2B12

33. What is the purpose of the color code used on DMR repeater systems?

• A. Defines the frequency pair to use
• B. Defines the minimum signal level required for access
• C. Identifies the codec used
• D. Must match the repeater color code for access

T1D03

34. When is it permissible to transmit messages encoded to obscure their meaning?

• A. Never
• B. Only when transmitting control commands to space stations or radio control craft
• C. Only during contests
• D. Only when transmitting certain approved digital codes

T8D02

35. What is a "talkgroup" on a DMR repeater?

• A. A net that meets at a specified time
• B. A protocol that increases the signal-to-noise ratio when multiple repeaters are linked together
• C. A way for groups of users to share a channel at different times without hearing other users on the channel
• D. A group of operators sharing common interests