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

Question

Quizplus · Accepted Answer

Echo sounders operate by emitting sound pulses from a ship or survey towfish, which then travel to the seafloor and back. The time taken for this round trip is measured to determine the depth of the water.

An Echo Sounder Operates by Measuring the Time Required for A___________