HYDROGRAPHIC SURVEY - Practice Mode

1) Which tide gauge gives a graphical record?

Float gauge Staff gauge Self registering gauges weight gauge

Correct Answer: Self registering gauges

2) What is the least count of board of staff gauge?

5 to 10 cm 5 to 10m 1 - 5 cm 1 - 5 m

Correct Answer: 5 to 10 cm

3) Which is works on the principle of transmitting sound waves from ship's bottom?

Current meter Lagrangian Eco sounder Altimeter

Correct Answer: Eco sounder

4) What is the use of eco sounder?

To determine the depth of water To measure the velocity of water To determine the height of tide To measure the intensity of tide

Correct Answer: To determine the depth of water

5) Which device is used for determining the depth of the sea bed ?

Lagrangian Altimeter Current Meter Eco Sounder

Correct Answer: Eco Sounder

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