Ham Technician License Practice Quiz


• Percentage: 0%; Correct: 0; Total: 0 of 35

T0A04: What is the purpose of a fuse in an electrical circuit?

To prevent power supply ripple from damaging a circuit
To interrupt power in case of overload
To limit current to prevent shocks
All of these choices are correct

T0B06: What is the minimum safe distance from a power line to allow when installing an antenna?

Half the width of your property
The height of the power line above ground
1/2 wavelength at the operating frequency
So that if the antenna falls unexpectedly, no part of it can come closer than 10 feet to the power wires

T0C06: Which of the following is an acceptable method to determine that your station complies with FCC RF exposure regulations?

By calculation based on FCC OET Bulletin 65
By calculation based on computer modeling
By measurement of field strength using calibrated equipment
All of these choices are correct

T1A11: Which of the following stations transmits signals over the air from a remote receive site to a repeater for retransmission?

Beacon station
Relay station
Auxiliary station
Message forwarding station

T1B03: Which frequency is within the 6 meter band?

49.00 MHz
52.525 MHz
28.50 MHz
222.15 MHz

T1C02: Which of the following is a valid US amateur radio station call sign?

KMA3505
W3ABC
KDKA
11Q1176

T1D11: Which of the following types of communications are permitted in the Amateur Radio Service?

Brief transmissions to make station adjustments
Retransmission of entertainment programming from a commercial radio or TV station
Retransmission of entertainment material from a public radio or TV station
Communications on a regular basis that could reasonably be furnished alternatively through other radio services

T1E11: Who does the FCC presume to be the control operator of an amateur station, unless documentation to the contrary is in the station records?

The station custodian
The third party participant
The person operating the station equipment
The station licensee

T1F02: When using tactical identifiers, how often must your station transmit the station's FCC-assigned call sign?

Never, the tactical call is sufficient
Once during every hour
Every ten minutes
At the end of every communication

T2A05: What should you transmit when responding to a call of CQ?

CQ followed by the other station's call sign
Your call sign followed by the other station's call sign
The other station's call sign followed by your call sign
A signal report followed by your call sign

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?

The repeater receiver requires audio tone burst for access
The repeater receiver requires a CTCSS tone for access
The repeater receiver may require a DCS tone sequence for access
All of these choices are correct

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

T3A08: What is the cause of irregular fading of signals from distant stations during times of generally good reception?

Absorption of signals by the "D" layer of the ionosphere
Absorption of signals by the "E" layer of the ionosphere
Random combining of signals arriving via different path lengths
Intermodulation distortion in the local receiver

T3B11: What is the approximate velocity of a radio wave as it travels through free space?

3000 kilometers per second
300,000,000 meters per second
300,000 miles per hour
186,000 miles per hour

T3C11: Why do VHF and UHF radio signals usually travel somewhat farther than the visual line of sight distance between two stations?

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

T4A02: What could be used in place of a regular speaker to help you copy signals in a noisy area?

A video display
A low pass filter
A set of headphones
A boom microphone

T4B08: What is the advantage of having multiple receive bandwidth choices on a multimode transceiver?

Permits monitoring several modes at once
Permits noise or interference reduction by selecting a bandwidth matching the mode
Increases the number of frequencies that can be stored in memory
Increases the amount of offset between receive and transmit frequencies

T5A11: What is the basic unit of electromotive force?

The volt
The watt
The ampere
The ohm

T5B03: How many volts are equal to one kilovolt?

One one-thousandth of a volt
One hundred volts
One thousand volts
One million volts

T5C04: What is the basic unit of inductance?

The coulomb
The farad
The henry
The ohm

T5D07: What is the current flow in a circuit with an applied voltage of 120 volts and a resistance of 80 ohms?

9600 amperes
200 amperes
0.667 amperes
1.5 amperes

T6A02: What type of component is often used as an adjustable volume control?

Fixed resistor
Power resistor
Potentiometer
Transformer

T6B12: What is the term that describes a transistor's ability to amplify a signal?

Gain
Forward resistance
Forward voltage drop
On resistance

T6C10: What is component 3 in figure T3?

Connector
Meter
Variable capacitor
Variable inductor

T6D09: What is the name of a device that combines several semiconductors and other components into one package?

Transducer
Multi-pole relay
Integrated circuit
Transformer

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

T7C09: Which of the following is the most common cause for failure of coaxial cables?

Moisture contamination
Gamma rays
The velocity factor exceeds 1.0
Overloading

T7D01: Which instrument would you use to measure electric potential or electromotive force?

An ammeter
A voltmeter
A wavemeter
An ohmmeter

T8A03: Which type of voice modulation is most often used for long-distance or weak signal contacts on the VHF and UHF bands?

FM
AM
SSB
PM

T8B06: What can be used to determine the time period during which an amateur satellite or space station can be accessed?

A GPS receiver
A field strength meter
A telescope
A satellite tracking program

T8C01: Which of the following methods is used to locate sources of noise interference or jamming?

Echolocation
Doppler radar
Radio direction finding
Phase locking

T8D10: Which of the following can be used to transmit CW in the amateur bands?

Straight Key
Electronic Keyer
Computer Keyboard
All of these choices are correct

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

T9B06: Which of the following connectors is most suitable for frequencies above 400 MHz?

A UHF (PL-259/SO-239) connector
A Type N connector
An RS-213 connector
A DB-23 connector