An echo sounder operates by measuring the time required for a______ .
A) sound pulse travels from a ship to the seafloor and back
B) radar beam to travel from a ship to the seafloor and back
C) light beam to travel from a satellite at a known altitude to the sea bottom and back
D) radar beam to travel from a harbor patrol boat to a fuzz- buster on a speeding yacht

Question

Quizplus · Accepted Answer

An echo sounder works by sending a sound pulse from a ship to the seafloor and then measuring the time it takes for the pulse to bounce back to the ship. This time can then be used to calculate the depth of the water. Options B, C, and D are incorrect as they refer to different types of technologies that are not used in echo sounding.

An Echo Sounder Operates by Measuring the Time Required for A______