stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Ham Radio - Technician Quiz Flashcards | StudBud
Explore
/
Ham Radio - Technician Quiz
Ham Radio - Technician Quiz
35 terms
·
StudBud Administration
·
57 plays
Imported from external platform
Flashcards
35 cards
F
Practice quiz
P
Host live
L
Questions
35
Answers
1
What is the function of an SPDT switch?
Two circuits are each switched between one of two other circuits
Two circuits are opened or closed
A single circuit is opened or closed
A single circuit is switched between one of two other circuits
2
What is the normal term for an FCC-issued amateur radio license?
Five years
Eight years
Life
Ten years
3
What is the approximate bandwidth of a typical single sideband (SSB) voice signal?
15 kHz
3 kHz
1 kHz
6 kHz
4
What is a good way to guard against electrical shock at your station?
Connect all AC powered station equipment to a common safety ground
All these choices are correct
Install mechanical interlocks in high-voltage circuits
Use three-wire cords and plugs for all AC powered equipment
5
Who is accountable if a repeater inadvertently retransmits communications that violate the FCC rules?
The owner of the repeater
The control operator of the originating station
Both the originating station and the repeater owner
The control operator of the repeater
6
Which protocols enables an amateur station to transmit through a repeater w/o using a radio to initiate the transmission
D-STAR
EchoLink
DMR
IRLP
7
Which of the following is a good electrical insulator?
Glass
Aluminum
Copper
Mercury
8
Which is a proper grounding method for a tower?
Separate 8 ft ground rods for each tower leg, bonded to tower & each other
A ferrite-core RF choke connected between the tower and ground
Single 4 ft ground rod, driven into ground no more than 12 in. from base
A connection between the tower base and a cold water pipe
9
What is a likely cause of irregular fading of signals propagated by the ionosphere?
Frequency shift due to Faraday rotation
Random combining of signals arriving via different paths
Interference from thunderstorms
Intermodulation distortion
10
Why should you not set your transmit frequency to be exactly at the edge of an amateur band or sub-band?
To allow for calibration error in the transmitter frequency display
So that modulation sidebands do not extend beyond the band edge
All these choices are correct
To allow for transmitter frequency drift
11
Which of the following is a source of loss in coaxial feed line?
High SWR
Multiple connectors in the line
All these choices are correct
Water intrusion into coaxial connectors
12
What is component 6 in figure T-2?
Transistor
Regulator IC
Resistor
Capacitor
13
Which of the following is combined with an inductor to make a resonant circuit?
Capacitor
Resistor
Potentiometer
Zener diode
14
Which of the following can reduce overload of a VHF transceiver by a nearby commercial FM station?
Installing an RF preamplifier
Installing a band-reject filter
Using double-shielded coaxial cable
Installing bypass capacitors on the microphone cable
15
How is a specific group of stations selected on a digital voice transceiver?
By enabling the group’s CTCSS tone
By retrieving the frequencies from transceiver memory
By activating automatic identification
By entering the group’s identification code
16
Which of the following is included in packet radio transmissions?
All these choices are correct
A check sum that permits error detection
Header that contains call sign of the station to which info is being sent
Automatic repeat request in case of error
17
What is the resistance of a circuit that draws 4 amperes from a 12-volt source?
16 ohms
3 ohms
48 ohms
8 ohms
18
What types of amateur stations can automatically retransmit the signals of other amateur stations?
Auxiliary, beacon, or Earth stations
Earth, repeater, or space stations
Repeater, auxiliary, or space stations
Beacon, repeater, or space stations
19
What is the meaning of the procedural signal “CQ”?
Calling any station
Only the called station should transmit
Test transmission, no reply expected
Call on the quarter hour
20
Which of the following actions can reduce exposure to RF radiation?
Relocate antennas
Relocate the transmitter
All these choices are correct
Increase the duty cycle
21
What is meant by the statement that a satellite is operating in U/V mode?
The satellite operates using ultraviolet frequencies
Satellite uplink in 70 centimeter band & the downlink is in 2 meter band
The satellite frequencies are usually variable
Satellite uplink in 15 meter band & the downlink is in 10 meter band
22
How much power is delivered by a voltage of 13.8 volts DC and a current of 10 amperes?
3.8 watts
0.7 watts
23.8 watts
138 watts
23
What causes tropospheric ducting?
Discharges of lightning during electrical storms
Temperature inversions in the atmosphere
Sunspots and solar flares
Updrafts from hurricanes and tornadoes
24
Which of the following describes combining speech with an RF carrier signal?
Impedance matching
Modulation
Low-pass filtering
Oscillation
25
What is the approximate length, in inches, of a quarter-wavelength vertical antenna for 146 MHz?
19
112
12
50
26
Which is equal to 1,000,000 picofarads?
1000 microfarads
1,000,000,000 microfarads
0.001 microfarads
1 microfarad
27
What does the abbreviation FET stand for?
Field Effect Transistor
Frequency Emission Transmitter
Free Electron Transmitter
Fast Electron Transistor
28
Which of the following is an example of automatic control?
Using a computer or other device to identify automatically
Controlling a station over the internet
Using a computer or other device to send CW automatically
Repeater operation
29
Which of the following applies when two stations transmitting on the same frequency interfere with each other?
Interference is inevitable, so no action is required
Use subaudible tones so both stations can share the frequency
Both stations should choose another frequency to avoid conflict
The stations should negotiate continued use of the frequency
30
Which instrument can be used to determine SWR?
Ohmmeter
Directional wattmeter
Voltmeter
Iambic pentameter
31
What frequency range is referred to as VHF?
30 kHz to 300 kHz
30 MHz to 300 MHz
300 MHz to 3000 MHz
300 kHz to 3000 kHz
32
Which entities recommends transmit/receive channels and other parameters for auxiliary and repeater stations?
International Telecommunication Union
FCC Regional Field Office
Volunteer Frequency Coordinator recognized by local amateurs
Frequency Spectrum Manager appointed by the FCC
33
Which of the following is a characteristic of good traffic handling?
All these choices are correct
Making decisions as to whether messages are worthy of relay or delivery
Passing messages exactly as received
Ensuring that any newsworthy messages are relayed to the news media
34
Which of the following types of solder should not be used for radio and electronic applications?
Rosin-core solder
Lead-tin solder
Acid-core solder
Tin-copper solder
35
Which of the following conductors is preferred for bonding at RF?
Twisted-pair cable
Steel wire
Flat copper strap
Copper braid removed from coaxial cable
