HYDROGRAPHIC SURVEY - Practice Mode

1) What is the measurment of depth below the water surface?
Correct Answer: Sounding
2) Which survey uses the sounding boat
Correct Answer: Hyrographic
3) What is the weight attached to the lead line in Hydrographic survey
Correct Answer: Sounding lead
4) What is the use of Fatho meter ?
Correct Answer: Ocean sounding
5) What is the weight of sounding level in kg?
Correct Answer: 4 to 12