Ham Technician License Practice Quiz
• Percentage: 0%; Correct: 0; Total: 0 of 35
T0A02: How does current flowing through the body cause a health hazard?
By heating tissue
It disrupts the electrical functions of cells
It causes involuntary muscle contractions
All of these choices are correct
T0B11: Which of the following establishes grounding requirements for an amateur radio tower or antenna?
FCC Part 97 Rules
Local electrical codes
FAA tower lighting regulations
Underwriters Laboratories' recommended practices
T0C08: Which of the following actions might amateur operators take to prevent exposure to RF radiation in excess of FCC-supplied limits?
Relocate the transmitter
Increase the duty cycle
All of these choices are correct
T1A08: Which of the following entities recommends transmit/receive channels and other parameters for auxiliary and repeater stations?
Frequency Spectrum Manager
FCC Regional Field Office
International Telecommunications Union
T1B08: What do the FCC rules mean when an amateur frequency band is said to be available on a secondary basis?
Secondary users of a frequency have equal rights to operate
Amateurs are only allowed to use the frequency at night
Amateurs may not cause harmful interference to primary users
Secondary users are not allowed on amateur bands
T1C01: Which type of call sign has a single letter in both the prefix and suffix?
T1D03: When is the transmission of codes or ciphers allowed to hide the meaning of a message transmitted by an amateur station?
Only during contests
Only when operating mobile
Only when transmitting control commands to space stations or radio control craft
Only when frequencies above 1280 MHz are used
T1E02: Who is eligible to be the control operator of an amateur station?
Only a person holding an amateur service license from any country that belongs to the United Nations
Only a citizen of the United States
Only a person over the age of 18
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
T1F01: What type of identification is being used when identifying a station on the air as 'Race Headquarters'?
T2A07: Which of the following is true when making a test transmission?
Station identification is not required if the transmission is less than 15 seconds
Station identification is not required if the transmission is less than 1 watt
Station identification is required only if your station can be heard
Station identification is required at least every ten minutes during the test and at the end
T2B02: What is the term used to describe the use of a sub-audible tone transmitted with normal voice audio to open the squelch of a receiver?
T2C09: When may an amateur station use any means of radio communications at its disposal for essential communications in connection with immediate safety of human life and protection of property?
Only when FEMA authorizes it by declaring an emergency
When normal communications systems are not available
Only when RACES authorizes it by declaring an emergency
Only when authorized by the local MARS program director
T3A04: What can happen if the antennas at opposite ends of a VHF or UHF line of sight radio link are not using the same polarization?
The modulation sidebands might become inverted
Signals could be significantly weaker
Signals have an echo effect on voices
Nothing significant will happen
T3B07: What property of radio waves is often used to identify the different frequency bands?
The approximate wavelength
The magnetic intensity of waves
The time it takes for waves to travel one mile
The voltage standing wave ratio of waves
T3C09: What is generally the best time for long-distance 10 meter band propagation?
During daylight hours
During nighttime hours
When there are coronal mass ejections
Whenever the solar flux is low
T4A05: What type of filter should be connected to a TV receiver as the first step in trying to prevent RF overload from a nearby 2 meter transmitter?
T4B10: Which of the following is an appropriate receive filter to select in order to minimize noise and interference for CW reception?
T5A11: What is the basic unit of electromotive force?
T5B04: How many volts are equal to one microvolt?
One one-millionth of a volt
One million volts
One thousand kilovolts
One one-thousandth of a volt
T5C05: What is the unit of frequency?
T5D08: What is the current flowing through a 100-ohm resistor connected across 200 volts?
T6A03: What electrical parameter is controlled by a potentiometer?
T6B07: What does the abbreviation "LED" stand for?
Low Emission Diode
Light Emitting Diode
Liquid Emission Detector
Long Echo Delay
T6C09: What is component 4 in figure T2?
T6D11: Which of the following is a common use of coaxial cable?
Carry dc power from a vehicle battery to a mobile radio
Carry RF signals between a radio and antenna
Secure masts, tubing, and other cylindrical objects on towers
Connect data signals from a TNC to a computer
T7A09: Which of the following devices is most useful for VHF weak-signal communication?
A quarter-wave vertical antenna
A multi-mode VHF transceiver
An omni-directional antenna
A mobile VHF FM transceiver
T7B05: What is a logical first step when attempting to cure a radio frequency interference problem in a nearby telephone?
Install a low-pass filter at the transmitter
Install a high-pass filter at the transmitter
Install an RF filter at the telephone
Improve station grounding
T7C03: What, in general terms, is standing wave ratio (SWR)?
A measure of how well a load is matched to a transmission line
The ratio of high to low impedance in a feedline
The transmitter efficiency ratio
An indication of the quality of your station's ground connection
T7D02: What is the correct way to connect a voltmeter to a circuit?
In series with the circuit
In parallel with the circuit
In quadrature with the circuit
In phase with the circuit
T8A10: What is the typical bandwidth of analog fast-scan TV transmissions on the 70 cm band?
More than 10 MHz
About 6 MHz
About 3 MHz
About 1 MHz
T8B03: Which of the following can be done using an amateur radio satellite?
Talk to amateur radio operators in other countries
Get global positioning information
Make telephone calls
All of these choices are correct
T8C08: What is required in place of on-air station identification when sending signals to a radio control model using amateur frequencies?
Voice identification must be transmitted every 10 minutes
Morse code ID must be sent once per hour
A label indicating the licensee's name, call sign and address must be affixed to the transmitter
A flag must be affixed to the transmitter antenna with the station call sign in 1 inch high letters or larger
T8D06: What does the abbreviation PSK mean?
Pulse Shift Keying
Phase Shift Keying
Packet Short Keying
Phased Slide Keying
T9A11: What is meant by the gain of an antenna?
The additional power that is added to the transmitter power
The additional power that is lost in the antenna when transmitting on a higher frequency
The increase in signal strength in a specified direction when compared to a reference antenna
The increase in impedance on receive or transmit compared to a reference antenna
T9B04: What does an antenna tuner do?
It matches the antenna system impedance to the transceiver's output impedance
It helps a receiver automatically tune in weak stations
It allows an antenna to be used on both transmit and receive
It automatically selects the proper antenna for the frequency band being used