Ship Radar Endorsement Practice Test: FCC Element 8
Every question in the FCC Element 8 pool, word for word, with the 12 drawings. The real test is 50 of these, one from each key topic, and you need 38 right. It adds the ship radar endorsement to your license.
The real test: 50 questions. 38 right (76%) passes.
Here: 300 questions. FCC Commercial Element 8 Question Pool (Ship RADAR Techniques), approved 25 June 2009, US government work. Free.
The exam takes one question from each group of the pool, so the count per topic is fixed.
10 sample questions
Choose the most correct statement containing the parameters which control the size of the target echo.
A.Transmitted power, antenna effective area, transmit and receive losses, RADAR cross section of the target, range to target.
B.Height of antenna, power radiated, size of target, receiver gain, pulse width.
C.Power radiated, antenna gain, size of target, shape of target, pulse width, receiver gain.
D.Magnetron gain, antenna gain, size of target, range to target, wave-guide loss.
Show answer
A. Transmitted power, antenna effective area, transmit and receive losses, RADAR cross section of the target, range to target.
8-1A1 · RADAR Principles
The magnetron is used to:
A.Generate the output signal at the proper operating frequency.
B.Determine the shape and width of the transmitted pulses.
C.Modulate the pulse signal.
D.Determine the pulse repetition rate.
Show answer
A. Generate the output signal at the proper operating frequency.
8-11B1 · Transmitting Systems
Which of the following statements is true?
A.The front end of the receiver does not provide any amplification to the RADAR signal.
B.The mixer provides a gain of at least 6 db.
C.The I.F. amplifier is always a high gain, narrow bandwidth amplifier.
D.None of the above.
Show answer
A. The front end of the receiver does not provide any amplification to the RADAR signal.
8-19C1 · Receiving Systems
Modern liquid crystal displays have a pixel count of:
A.Greater than 200 pixels per inch.
B.Greater than 50 pixels per inch.
C.Can have no more than 125 pixels per inch.
D.Can implement 1,000 pixels per inch.
Show answer
A. Greater than 200 pixels per inch.
8-29D1 · Display & Control Systems
Slotted waveguide arrays, when fed from one end exhibit:
A.Frequency scan.
B.High VSWR.
C.Poor performance in rain.
D.A narrow elevation beam.
Show answer
A. Frequency scan.
8-39E1 · Antenna Systems
When you examine the RADAR you notice that there is no target video in the center of the CRT. The blank spot gets smaller in diameter as you increase the range scale. What operator front panel control could be misadjusted?
A.TUNE.
B.Sensitivity Time Control (STC).
C.Anti-Clutter Rain (ACR).
D.False Target Elimination (FTE).
Show answer
B. Sensitivity Time Control (STC).
8-44F1 · Installation, Maintenance & Repair
Which of the following has NO effect on the maximum range capability?
A.Carrier frequency.
B.Recovery time.
C.Pulse repetition frequency.
D.Receiver sensitivity.
Show answer
B. Recovery time.
8-1A2 · RADAR Principles
The purpose of the modulator is to:
A.Transmit the high voltage pulses to the antenna.
B.Provide high voltage pulses of the proper shape and width to the magnetron.
C.Adjust the pulse repetition rate.
D.Tune the Magnetron to the proper frequency.
Show answer
B. Provide high voltage pulses of the proper shape and width to the magnetron.
8-11B2 · Transmitting Systems
Logarithmic receivers:
A.Can't be damaged.
B.Can't be saturated.
C.Should not be used in RADAR systems.
D.Have low sensitivity.
Show answer
B. Can't be saturated.
8-19C2 · Receiving Systems
Voltages used in CRT anode circuits are in what range of value?