MCQ Questions Only

This quiz contains only multiple-choice questions with 1-indexed answers.

Question Answer Options
What does SONAR stand for? 1
  1. Sound Navigation And Ranging
  2. Sonic Navigation And Recording
  3. Sound Observation And Recognition
  4. Subsea Object Navigation And Reporting
Which maritime force first developed practical sonar? 3
  1. United States Navy
  2. German Kriegsmarine
  3. British Royal Navy
  4. French Marine Nationale
What environmental factor most affects sonar performance? 1
  1. Water temperature and salinity
  2. Moon phase
  3. Atmospheric pressure
  4. Time of day
Which type of sonar uses reflections to detect objects? 1
  1. Active sonar
  2. Passive sonar
  3. Side-scan sonar
  4. Doppler sonar
What is the primary function of a sonar transducer? 2
  1. Amplify electrical signals
  2. Convert electrical energy to sound waves
  3. Display sonar returns
  4. Filter background noise