UNIVERSIDAD DE MANILA
Arocerros St., Mehan Gardens, Manila
COLLEGE OF ENGINEERING AND TECHNOLOGY
Q & A
MILES O. CUARESMA
EK - 51
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.
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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