Ham Technician License Practice Quiz


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

T0A01: Which is a commonly accepted value for the lowest voltage that can cause a dangerous electric shock?

12 volts
30 volts
120 volts
300 volts

T0B02: What is a good precaution to observe before climbing an antenna tower?

Make sure that you wear a grounded wrist strap
Remove all tower grounding connections
Put on a climbing harness and safety glasses
All of the these choices are correct

T0C05: Why do exposure limits vary with frequency?

Lower frequency RF fields have more energy than higher frequency fields
Lower frequency RF fields do not penetrate the human body
Higher frequency RF fields are transient in nature
The human body absorbs more RF energy at some frequencies than at others

T1A09: Who selects a Frequency Coordinator?

The FCC Office of Spectrum Management and Coordination Policy
The local chapter of the Office of National Council of Independent Frequency Coordinators
Amateur operators in a local or regional area whose stations are eligible to be auxiliary or repeater stations
FCC Regional Field Office

T1B03: Which frequency is within the 6 meter band?

49.00 MHz
52.525 MHz
28.50 MHz
222.15 MHz

T1C04: When are you allowed to operate your amateur station in a foreign country?

When the foreign country authorizes it
When there is a mutual agreement allowing third party communications
When authorization permits amateur communications in a foreign language
When you are communicating with non-licensed individuals in another country

T1D04: What is the only time an amateur station is authorized to transmit music?

When incidental to an authorized retransmission of manned spacecraft communications
When the music produces no spurious emissions
When the purpose is to interfere with an illegal transmission
When the music is transmitted above 1280 MHz

T1E10: What type of control is used when the control operator is not at the station location but can indirectly manipulate the operating adjustments of a station?

Local
Remote
Automatic
Unattended

T1F12: How many persons are required to be members of a club for a club station license to be issued by the FCC?

At least 5
At least 4
A trustee and 2 officers
At least 2

T2A10: What is a band plan, beyond the privileges established by the FCC?

A voluntary guideline for using different modes or activities within an amateur band
A mandated list of operating schedules
A list of scheduled net frequencies
A plan devised by a club to use a frequency band during a contest

T2B08: What is the proper course of action if your station's transmission unintentionally interferes with another station?

Rotate your antenna slightly
Properly identify your transmission and move to a different frequency
Increase power
Change antenna polarization

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

T3A09: Which of the following is a common effect of "skip" reflections between the Earth and the ionosphere?

The sidebands become reversed at each reflection
The polarization of the original signal is randomized
The apparent frequency of the received signal is shifted by a random amount
Signals at frequencies above 30 MHz become stronger with each reflection

T3B09: What are the frequency limits of the UHF spectrum?

30 to 300 kHz
30 to 300 MHz
300 to 3000 kHz
300 to 3000 MHz

T3C07: What band is best suited to communicating via meteor scatter?

10 meters
6 meters
2 meters
70 cm

T4A09: Which would you use to reduce RF current flowing on the shield of an audio cable?

Band-pass filter
Low-pass filter
Preamplifier
Ferrite choke

T4B09: Which of the following is an appropriate receive filter to select in order to minimize noise and interference for SSB reception?

500 Hz
1000 Hz
2400 Hz
5000 Hz

T5A06: How much voltage does a mobile transceiver usually require?

About 12 volts
About 30 volts
About 120 volts
About 240 volts

T5B11: What is the approximate amount of change, measured in decibels (dB), of a power increase from 20 watts to 200 watts?

10 dB
12 dB
18 dB
28 dB

T5C07: What is a usual name for electromagnetic waves that travel through space?

Gravity waves
Sound waves
Radio waves
Pressure waves

T5D10: What is the voltage across a 2-ohm resistor if a current of 0.5 amperes flows through it?

1 volt
0.25 volts
2.5 volts
1.5 volts

T6A08: What electrical component is used to connect or disconnect electrical circuits?

Zener Diode
Switch
Inductor
Variable resistor

T6B11: Which semiconductor component has a gate electrode?

Bipolar transistor
Field effect transistor
Silicon diode
Bridge rectifier

T6C05: What is component 4 in figure T1?

Resistor
Transistor
Battery
Ground symbol

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

T7A05: What is the function of block 1 if figure T4 is a simple CW transmitter?

Reactance modulator
Product detector
Low-pass filter
Oscillator

T7B04: What is the most likely cause of interference to a non-cordless telephone from a nearby transmitter?

Harmonics from the transmitter
The telephone is inadvertently acting as a radio receiver
Poor station grounding
Improper transmitter adjustment

T7C01: What is the primary purpose of a dummy load?

To prevent the radiation of signals when making tests
To prevent over-modulation of your transmitter
To improve the radiation from your antenna
To improve the signal to noise ratio of your receiver

T7D05: What instrument is used to measure resistance?

An oscilloscope
A spectrum analyzer
A noise bridge
An ohmmeter

T8A09: What is the approximate bandwidth of a VHF repeater FM phone signal?

Less than 500 Hz
About 150 kHz
Between 5 and 15 kHz
Between 50 and 125 kHz

T8B05: What is a satellite beacon?

The primary transmit antenna on the satellite
An indicator light that that shows where to point your antenna
A reflective surface on the satellite
A transmission from a space station that contains information about a satellite

T8C09: How might you obtain a list of active nodes that use VoIP?

From the FCC Rulebook
From your local emergency coordinator
From a repeater directory
From the local repeater frequency coordinator

T8D09: What code is used when sending CW in the amateur bands?

Baudot
Hamming
International Morse
Gray

T9A03: Which of the following describes a simple dipole mounted so the conductor is parallel to the Earth's surface?

A ground wave antenna
A horizontally polarized antenna
A rhombic antenna
A vertically polarized antenna

T9B07: Which of the following is true of PL-259 type coax connectors?

They are good for UHF frequencies
They are water tight
The are commonly used at HF frequencies
They are a bayonet type connector