HYDROGRAPHIC SURVEY - Quiz

1) Which tide gauge gives a graphical record?

Float gauge Staff gauge Self registering gauges weight gauge

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

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

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

Current meter Lagrangian Eco sounder Altimeter

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

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

Lagrangian Altimeter Current Meter Eco Sounder