GROL General Radiotelephone 2

Question 1

What is the formula for calculating the wavelength of a radio signal in free space?

Accepted Answer

λ = c / f

Answer

λ = f × c

Answer

λ = f / c

Answer

λ = c × f²

Question 2

Which type of modulation is most susceptible to atmospheric noise and static interference?

Accepted Answer

Amplitude Modulation (AM)

Answer

Frequency Modulation (FM)

Answer

Single Sideband (SSB)

Answer

Phase Modulation (PM)

Question 3

In a series resonant circuit, what happens to impedance at the resonant frequency?

Accepted Answer

Impedance is at minimum

Answer

Impedance is at maximum

Answer

Impedance equals zero

Answer

Impedance equals the reactance

Question 4

What is the function of a limiter stage in an FM receiver?

Accepted Answer

Removes amplitude variations from the IF signal

Answer

Amplifies weak signals to a usable level

Answer

Converts FM to AM before detection

Answer

Selects the desired station frequency

Question 5

Which FCC license is required to operate a ship station's MF/HF Single Sideband radio?

Accepted Answer

General Radiotelephone Operator License (GROL)

Answer

Technician Class Amateur License

Answer

Marine Radio Operator Permit (MROP)

Answer

Restricted Radiotelephone Operator Permit

Question 6

What term describes the ratio of output power to input power in a transistor amplifier, expressed in decibels?

Accepted Answer

Gain

Answer

Efficiency

Answer

Power factor

Answer

Standing wave ratio

Question 7

A transmitter produces 100 watts into a 50-ohm load. What is the RMS voltage across the load?

Accepted Answer

100 V

Answer

50 V

Answer

70.7 V

Answer

141.4 V