FREE Ham Radio Technician I Questions And Answers

Question 1

What qualifies as a defining feature of the FT8 mode of the WSJT-X family?

Accepted Answer

Alpha, Bravo, Charlie, Delta

Answer

America, Boston, Canada, Denmark

Answer

Adam, Boy, Charles, David

Answer

Able, Baker, Charlie, Dog

Question 2

Which of the following things affects a parallel conductor antenna feed line's characteristic impedance?

Accepted Answer

The distance between the centers of the conductors and the radius of the conductors

Answer

The distance between the centers of the conductors and the length of the line

Answer

The frequency of the signal and the length of the line

Answer

The radius of the conductors and the frequency of the signal

Question 3

To transform signals of multiple frequencies into an intermediate frequency (IF), which mixer input is adjusted or tuned?

Accepted Answer

Local oscillator

Answer

Beat frequency oscillator

Answer

RF input

Answer

Image frequency

Question 4

What frequency range, with the displayed carrier frequency set to 7.178 MHz, is occupied by a 3 kHz LSB signal?

Accepted Answer

7.175 to 7.178 MHz

Answer

7.178 to 7.184 MHz

Answer

7.178 to 7.181 MHz

Answer

7.1765 to 7.1795 MHz

Question 5

When the displayed carrier frequency is set to 7.178 MHz, what frequency range is occupied by a 3 kHz LSB signal?

Accepted Answer

7.175 to 7.178 MHz

Answer

7.178 to 7.181 MHz

Answer

7.178 to 7.184 MHz

Answer

7.1765 to 7.1795 MHz

Question 6

What are the bipolar transistor's stable operating points when employed as a switch in a logic circuit?

Accepted Answer

Its saturation and cutoff regions

Answer

Its peak and valley current points

Answer

Its enhancement and depletion modes

Answer

Its active region (between the cutoff and saturation regions)

Question 7

Which of the following prevents alternating current from flowing via an inductor?

Accepted Answer

Reactance

Answer

Admittance

Answer

Conductance

Answer

Reluctance

Question 8

In a device powered by a 240 VAC single phase source, which wire(s) in a four-conductor connection should be connected to fuses or circuit breakers?

Accepted Answer

Only the two wires carrying voltage

Answer

Only the ground wire

Answer

Only the neutral wire

Answer

All wires

Question 9

What is the name of the broad outer circle where the reactance arcs end on the Smith charts shown in Figure E9-3?

Accepted Answer

Reactance axis

Answer

Prime axis

Answer

Impedance axis

Answer

Polar axis

Question 10

Tri-state logic: what is it?

Accepted Answer

Logic devices with, 0, 1, and high-impedance output states

Answer

Propriety logic devices manufactured by Tri-State Devices

Answer

Low-power logic devices designed to operate at 3 volts

Answer

Logic devices that utilize ternary math