HYDROGRAPHIC SURVEY - Practice Mode

1) What is the measurment of depth below the water surface?

Level Bench mark Sounding Reduced level

Correct Answer: Sounding

2) Which survey uses the sounding boat

Tacheometry Levelling Theodolite Hyrographic

Correct Answer: Hyrographic

Explanation:

Actuator is a device converts hydraulic energy into mechanical energy.

3) What is the weight attached to the lead line in Hydrographic survey

Fatho meter Sounding lead Sounding rod Sounding boat

Correct Answer: Sounding lead

Explanation:

According to Pascal’s law, the intensity of pressure at any point in a fluid at rest is same in all directions.
Hydraulic brakes works on the principle of Pascal's law.

4) What is the use of Fatho meter ?

Ocean sounding Ocean levelling Wind measuring Ranging

Correct Answer: Ocean sounding

5) What is the weight of sounding level in kg?

4 to 12 4 to 8 4 to 6 4 to 10

Correct Answer: 4 to 12

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