Ham Technician License Practice Quiz


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

T0A12: What kind of hazard might exist in a power supply when it is turned off and disconnected?

Static electricity could damage the grounding system
Circulating currents inside the transformer might cause damage
The fuse might blow if you remove the cover
You might receive an electric shock from stored charge in large capacitors

T0B01: When should members of a tower work team wear a hard hat and safety glasses?

At all times except when climbing the tower
At all times except when belted firmly to the tower
At all times when any work is being done on the tower
Only when the tower exceeds 30 feet in height

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

T1A07: What is the FCC Part 97 definition of telemetry?

An information bulletin issued by the FCC
A one-way transmission to initiate, modify or terminate functions of a device at a distance
A one-way transmission of measurements at a distance from the measuring instrument
An information bulletin from a VEC

T1B09: 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
To allow for transmitter frequency drift
All of these choices are correct

T1C06: From which of the following may an FCC-licensed amateur station transmit, in addition to places where the FCC regulates communications?

From within any country that belongs to the International Telecommunications Union
From within any country that is a member of the United Nations
From anywhere within in ITU Regions 2 and 3
From any vessel or craft located in international waters and documented or registered in the United States

T1D06: Which of the following types of transmissions are prohibited?

Transmissions that contain obscene or indecent words or language
Transmissions to establish one-way communications
Transmissions to establish model aircraft control
Transmissions for third party communications

T1E01: When must an amateur station have a control operator?

Only when the station is transmitting
Only when the station is being locally controlled
Only when the station is being remotely controlled
Only when the station is being automatically controlled

T1F06: Which of the following formats of a self-assigned indicator is acceptable when identifying using a phone transmission?

KL7CC stroke W3
KL7CC slant W3
KL7CC slash W3
All of these choices are correct

T2A04: What is an appropriate way to call another station on a repeater if you know the other station's call sign?

Say "break, break" then say the station's call sign
Say the station's call sign then identify with your call sign
Say "CQ" three times then the other station's call sign
Wait for the station to call "CQ" then answer it

T2B01: What is the term used to describe an amateur station that is transmitting and receiving on the same frequency?

Full duplex communication
Diplex communication
Simplex communication
Half duplex communication

T2C07: What should you do to minimize disruptions to an emergency traffic net once you have checked in?

Whenever the net frequency is quiet, announce your call sign and location
Move 5 kHz away from the net's frequency and use high power to ask other hams to keep clear of the net frequency
Do not transmit on the net frequency until asked to do so by the net control station
Wait until the net frequency is quiet, then ask for any emergency traffic for your area

T3A02: Why are UHF signals often more effective from inside buildings than VHF signals?

VHF signals lose power faster over distance
The shorter wavelength allows them to more easily penetrate the structure of buildings
This is incorrect; VHF works better than UHF inside buildings
UHF antennas are more efficient than VHF antennas

T3B03: What are the two components of a radio wave?

AC and DC
Voltage and current
Electric and magnetic fields
Ionizing and non-ionizing radiation

T3C02: Which of the following might be happening when VHF signals are being received from long distances?

Signals are being reflected from outer space
Signals are arriving by sub-surface ducting
Signals are being reflected by lightning storms in your area
Signals are being refracted from a sporadic E layer

T4A01: Which of the following is true concerning the microphone connectors on amateur transceivers?

All transceivers use the same microphone connector type
Some connectors include push-to-talk and voltages for powering the microphone
All transceivers using the same connector type are wired identically
Un-keyed connectors allow any microphone to be connected

T4B10: Which of the following is an appropriate receive filter to select in order to minimize noise and interference for CW reception?

500 Hz
1000 Hz
2400 Hz
5000 Hz

T5A09: What is the name for a current that reverses direction on a regular basis?

Alternating current
Direct current
Circular current
Vertical current

T5B10: What is the approximate amount of change, measured in decibels (dB), of a power decrease from 12 watts to 3 watts?

1 dB
3 dB
6 dB
9 dB

T5C11: How many amperes are flowing in a circuit when the applied voltage is 12 volts DC and the load is 120 watts?

0.1 amperes
10 amperes
12 amperes
132 amperes

T5D02: What formula is used to calculate voltage in a circuit?

Voltage (E) equals current (I) multiplied by resistance (R)
Voltage (E) equals current (I) divided by resistance (R)
Voltage (E) equals current (I) added to resistance (R)
Voltage (E) equals current (I) minus resistance (R)

T6A10: What is the nominal voltage of a fully charged nickel-cadmium cell?

1.0 volts
1.2 volts
1.5 volts
2.2 volts

T6B01: What class of electronic components is capable of using a voltage or current signal to control current flow?

Capacitors
Inductors
Resistors
Transistors

T6C06: What is component 6 in figure T2?

Resistor
Capacitor
Regulator IC
Transistor

T6D08: Which of the following is used together with an inductor to make a tuned circuit?

Resistor
Zener diode
Potentiometer
Capacitor

T7A10: What device increases the low-power output from a handheld transceiver?

A voltage divider
An RF power amplifier
An impedance network
A voltage regulator

T7B07: Which of the following may be useful in correcting a radio frequency interference problem?

Snap-on ferrite chokes
Low-pass and high-pass filters
Band-reject and band-pass filters
All of these choices are correct

T7C05: What is the approximate SWR value above which the protection circuits in most solid-state transmitters begin to reduce transmitter power?

2 to 1
1 to 2
6 to 1
10 to 1

T7D07: Which of the following measurements are commonly made using a multimeter?

SWR and RF power
Signal strength and noise
Impedance and reactance
Voltage and resistance

T8A02: What type of modulation is most commonly used for VHF packet radio transmissions?

FM
SSB
AM
Spread Spectrum

T8B08: What is meant by the statement that a satellite is operating in "mode U/V"?

The satellite uplink is in the 15 meter band and the downlink is in the 10 meter band
The satellite uplink is in the 70 cm band and the downlink is in the 2 meter band
The satellite operates using ultraviolet frequencies
The satellite frequencies are usually variable

T8C07: What is the maximum power allowed when transmitting telecommand signals to radio controlled models?

500 milliwatts
1 watt
25 watts
1500 watts

T8D06: What does the abbreviation PSK mean?

Pulse Shift Keying
Phase Shift Keying
Packet Short Keying
Phased Slide Keying

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

T9B01: Why is it important to have a low SWR in an antenna system that uses coaxial cable feedline?

To reduce television interference
To allow the efficient transfer of power and reduce losses
To prolong antenna life
All of these choices are correct