UE-201 ES-1

A Hydrographic Survey is the water equivalent of a ___________ survey

• Control Survey

• Geodetic Survey

• Topographic Survey

• None of these

__________ is the study of beds or floors of water bodies, including the ocean, rivers, streams and lakes

• Limnology
• Oceanometry

• Entomology
• Bathymetry

The objectives of Hydrographic Survey include ___________

• Vertical Control

• Horizontal Control

• Determination of the bed profile

• Location of all irregularities

The vertical distance between the waterline and the bottom of the ship is known as

• Draft

• Draft limit

• Sounding

• Datum

The full form of LiDAR is _____________

• Light Detection and Ranging

• Light Distance and Response

• Light Data and Radiation

• None of these

The full form of SONAR is ___________

• Sound Navigation and Ranging

• Satellite Navigation and Ranging

• Satellite Navigation and Radar

• None of these

___________ is a geographic information system used for nautical navigation that complies with International Maritime Organization (IMO) regulations

• ENC

• ECDIS

• None of these

• IHO

Reducing the soundings/ depth measurements to a datum is called _________

• Horizontal Control

• Vertical Control

• Profiling

• Position-fixing

The most common chart datums are ___________

• Highest astronomical tide

• Lowest astronomical tide

• Mean higher high water

• Mean lower low water

• Mean low water

__________ is a type of Tide

• Neap

• Spring

• Diurnal

• Semi-diurnal

• All of these