Navigational Aids

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UNIVERSIDAD DE MANILA
Arocerros St., Mehan Gardens, Manila

COLLEGE OF ENGINEERING AND TECHNOLOGY

NAVIGATIONAL AIDS
Q & A

Submitted by:
MILES O. CUARESMA
EK - 51

Submitted to:
ENGR. R. MELGAREJO

Questions and Answers

Introduction to Navigation:

1. __________ is the art of science of determining the ship or aircraft’s position and of conducting a ship or aircraft from one position to another. A: Navigation

2. ___________ is any sort of marker which aids the traveller in navigation. A: Navigational Aid

3. A method of navigation by which the position of the ship is calculated from the direction and rate of progress through the water from the latest well – determined position is called ______. A: Dead Reckoning

4. A method of navigation which employs the use of various electronic devices is called __________. A: Electronic Navigation

5. The _______ is the planet which we are most familiar. It is where we live and is said to be the only planet where people can exist. A: Earth

6. It is the intended direction of travel of a ship through water. A: Course

7. ______ is a floatation device that is used to warn danger. It is sometimes anchored or allowed to drift. A: Buoy

8. ___________ is a man made permanent fixture having a light of certain characteristics and is usually watched. A: Lighthouse

9. Meridians used as the origin of measurement of longitude, the meridian of Greenwich England. A: Prime Meridian

10. ______ is the diameter by which the earth rotates.
A: Axis

Fundamentals of Electronic Navigation:

1. __________ is a method of navigation which employs the use of various electronic devices. A: Electronic Navigation

2. An electronic device where it receives signals and weather information. A: Radio Receiver

3. RDF stands for _________________.
A: Radio Direction Finder

4. It has a receiver and a loop antenna which has directional properties. A: RDF

5. LONAR stands for ________________.
A: Long Range Navigation

6. SONAR stands for ________________.
A: Sonic Ranging

7. RADAR stands for ________________.
A: Radio Direction and Ranging

8. _________ is the application of radio frequencies to determine a position on the earth. A: Radio Navigation

9. The use of radar to determine position relative to known objects. A: Radar Navigation

10. Refers to the use of satellite navigation systems.
A: Satellite Navigation

Basic Operation and Components of a RDF

1. RDF stands for _________________.
A: Radio Direction Finder

2. It has a receiver and a loop antenna which has directional properties. A: RDF

3. He Patented the First RDF system in 1902.
A: John Stone

4. RDF is used primarily in ______ and _______ navigation.
A: Aircraft and Marine Navigation

5. ADF stands for ______________.
A: Automatic Direction Finder.

6. It automatically and continuously displays the relative bearing from the ship or aircraft to a suitable radio station. A: ADF

7. _________ are considered transmitters for air and sea navigation and is equivalent to a lighthouse. A: Beacons

8. Radio signals travel in __________ during the day which is picked up by the RDF. A: Omnidirectional

9. RDF is compared to a _________ which was really useful during the World War II. A: Compass

10. RDF propagates ____________ in very long distances.
A: Low Frequency / LF

RDF Position Finding, Different type of Direction Finding

1. It has a receiver and a loop antenna which has directional properties. A: RDF

2. Radio signals travel in __________ during the day which is picked up by the RDF....
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