HYDROGRAPHIC SURVEY MCQs 13 min Score: 0 Attempted: 0/13 Subscribe 1. Branch of surveying which deals with bodies of water such as lake, sea & river etc. is called: (A) Hydrographic survey (B) Chain survey (C) Compass survey (D) Cadastral survey 2. Hydrographic survey is carried out for mapping of: (A) Water bodies (B) Plain areas (C) Mountainous areas (D) Boundaries 3. The process of measurement of depth below the water surface is called: (A) Sounding (B) Levelling (C) Ranging (D) Gauging 4. Propeller is the part of an instrument used in hydrographic survey: (A) Fathometer (B) Pilot tube (C) Current meter (D) Sounding machine 5. In hydrographic survey current meter is used to measure: (A) Velocity of water (B) Current of water (C) Area of water (D) Discharge of water 6. Another name of fathometer is: (A) Transducer (B) Rotameter (C) Echo-meter (D) Current meter 7. Pole used to determine sounding is called: (A) Sounding rod (B) Ranging rod (C) Offset rod (D) Depth pole 8. Length of sounding rod varies from: (A) 7 to 10 m (B) 5 to 8 m (C) 9 to 12 m (D) 11 to 14 m 9. Lead line is used for measuring: (A) Sounding (B) Levelling (C) Bearing (D) Horizontal distance 10. In hydrographic survey, float is used to determine: (A) Quality of water (B) Depth of water (C) Velocity of water (D) Volume of water 11. An instrument used to measure depth of sea water is called: (A) Lead line (B) Sounding rod (C) Echo sounder (D) Current meter 12. The quantity of water flowing through a channel per unit time is called: (A) Mass rate flow (B) Discharge (C) Viscosity (D) Volume 13. Unit of discharge is: (A) m/sec (B) cum/sec
