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C1 - Plan and conduct a passage and determine position

9710070022

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JHERIC LEE CORTEZ GAMUROT

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1. What is the surest sign of the proximity of a tropical storm?
If the interruption on the barometer is 4 mb or more below normal.
If the interruption on the barometer is 3 mb or more below normal.
If the interruption on the barometer is 5 mb or more below normal.
If the interruption on the barometer is 2 mb or more below normal.

2. You are running parallel to the coast and plotting running fixes using bearings of the same landmark. For the running fix, you are making more speed than you have assumed. What would be your position in relation to the coast?
You are farther from the coast.
You are closer to the coast.
You are on the trackline ahead of the fix.
You are on the trackline behind the fix.

3. In navigation, what is meant by a bell?
A floating object which is anchored with a sound signal producing bell tones on fixed aid and by sea motion.on buoys.
A floating object which is anchored at a given position with a sound signal producing bell tones by means of hammer actuiated by electricity and by sea motion.
A sound signal producing tones by means of a hammer actuated by electricity.
A sound signal producing tones actuated by electricity.on fixed aids and by sea motion on buoys.

4. What is the line drawn on a chart through places that is synonymous with the Magnetic Equator?
Aclinic.
Isogonal
Isoclinical
Agonic

5. On a chart, cardinal marks of the compass indicates the position of a danger and the direction of the safe side. How would you determine a SOUTH cardinal mark?
It is painted black over yellow.
It is painted yellow over black..
It is painted black with yellow.bands.
It is painted yellow with black.bands.

6. At 1200H, you fix your position and change course to 315°T.At 1225H, you again fix your position, and it is 0.9 mile southwest of your DR position. Find the drift:
1.9 knots
1.7 knots
2.3 knots
2.1 knots

7. What phenomenom occurs of which can change the polarity of the magnetic properties of a vessel?
steaming from the north magnetic hemisphere to the south magnetic hemisphere
loading a homogenious cargo such as steel plate, iron bars, etc
being moored for a long time on one heading
being struct by lightning

8. Why should buoys be avoided in fixing the ship's position?
Buoys color may be faded by weather hence unreliable.
Buoys may be unlit hence unreliable.
Buoys position can be relocated hence unreliable.
Buoys characteristics might be changed hence unreliable

9. Which one of the following is the strength of field in which a unit magnetic pole would experience a force of one dyne?
Hyteresis.
Oersted.
Gauss.
Flux.

10. When the navigational channel passes under a fixed bridge, what would be the lights that mark the edges of the channel on the bridge?
Yellow lights.
Red lights.
Three white lights in a verical line.
Red lights on the LDB and green lights on the RDB.

11. If you are in the Northern Hemisphere as a general rule (Buy's Ballot Law), how would you determine the center of high pressure?
Faces the surface of the wind the center of high is in your back.
Faces the surface of the wind the center of high is toward your right.
Faces the surface of the wind the center of high is directly ahead.
Faces the surfaces of the wind the center of high pressure is in your left.

12. How would you prove your understanding of Relative Humidity?
The air temperature over dew point temperature x 100.
The actual amount of water vapor in a sample of air over the maximum amount of water vapor that the sample can contain x 100.
The actual amount of water vapor in a sample of air can contain over the actual amount of water vapor that the sample does contain x 100.
The air temperature over wet bulb temperature x 100.

13. How would you call a chart that has extensive corrections made and again printed?
Reprint
New edition
Revised edition
First edition

14. Which statement is CORRECT regarding thunderstorms?
During the building stage of a thunderstorm cell: the cloud contains upcurrents and downcurrents.
During the mature stage of a thunderstorm cell: the cloud contains upcurrents and downcurrents.
During the building stage of a thunderstorm cell: the cloud contains downcurrents only.
During the dissipating stage of a thunderstorm cell: the cloud contains upcurrents and downcurrents.

15. If you experience where there is no steering from remote control, what will be the MOST probable cause?
Problem in tele control system.
Breakdown of hydraulic pumps.
Malfunction of hydraulic by-pass valve in the pump.
Malfunction of transfer valve.

16. You are proceeding down a channel at night. It is marked by a range light which bears 185T. You steady up on a compass course of 180T with the range light in line dead ahead. What does this kind of situation indicate?
You must come right to get on the range.
Your maintained course is in error.
You are being affected by a southerly current.
Your compass has some easterly error.

17. What is your opinion regarding the best meteorological factors you should consider in planning an ocean passage?
A choice of route considering the possiblity of a long delay and/ or damage resulting from bad weather.
A choice of route that must be balanced between consideration of safety and time.
A choice of route favourable to the prevailing or seasonal winds.
A choice of route that has a much advantage as possible from currents which are favourable.

18. On certain type of charts where depth information is sufficiently precise, how may the soundings be expressed for deep draft vessels?
Soundings between 11 meters and 21 meters may be expressed in meters and decimeters.
Soundings between 21 meters and 31 meters may be expressed in meters and decimeters.
Soundings between 22 meters and 32 meters may be expressed in meters and decimeters.
Soundings between 31 meters and 41 meters may be expressed in meters and decimeters.

19. Your vessel's heading is 330° pgc and 345° psc with a 2°E gyro error. If there is a variation of 13°W, what is the deviation on this heading?
0°
4° E
3° W
3° E

20. How would you show your understanding of an echo sounder having a Pythagoras error?
The echo may be reflected a number of tmes between the keel and the sea bed, thereby giving multiple depth marks on the record.
This error is found when two transducers are used one for transmission and the other for reception.
If the density of the water varies with temperature and salinity, it will tend to form different layers.
The acoustic wave speed changes if temperatur, salinity or pressure changes therefore the depth recorded will be inaccurate.

21. What is precipitation?
The part of the water cycle when the sun heats up water, turning it from a liquid into water vapor.,
The part of the water cycle when clouds get heavy and can no longer hold the liquid water.
The part of the water cycle when the water vapor in the air gets cold.
The part of the water cycle wherein it falls from the sky to the earth as rain, snow, sleet or hail.

22. The dry bulb thermometer is 80°F and the wet bulb temperature is 74°F, what is the relative humidity?
69%
71%
70%
68%

23. How would you define alternating light?
A rhytmic light showing light of different colors.
A light showing different colors alternately.
A light showing alternating colors as observed in rhythm
A rhytmic light showing light of alternating colors.

24. At 1600H, you fix your position and change course to 315°T. At 1625H, you again fix your position, and it is 0.9 mile southwest of your DR position. Find the drift:
1.9 knots
2.3 knots
1.7 knots
2.1 knots

25. What is the light color (when fitted) of the Port hand lateral marks used in IALA Region A?
White
Yellow
Green
Red

26. What is the color of the South cardinal marks used in IALA Region A and Region B?
Black above yellow.
Black with a single broad horizontal yellow band.
Yellow above black.
Yellow with a single broad horizontal black band.

27. What is the variation of a compass if the True heading is 312° and the Magnetic heading is 298°?
14°W
14°E
28°W
28°E

28. How would you ensure the operational readiness of the steering system?
A vessel steering systems should be checked one hour before the pilot comes onboard..
A vessel steering systems should be checked one hour before departure.
A vessel steering systems should be checked within 12 hours before departure.
A vessel steering systems should be checked within 12 hours after departure.

29. How can you identify aids to navigation marking the intracoastal waterway?
By the letters after the aids number.
By yellow stripes, squares or triangles marked on them.
By the light characteristic and color for lighted aids.
White retroreflective material

30. Which one best describes Jet Stream?
It is a long narrow meandering current of high speed winds near the tropopause blowing from generally westerly direction and often exceeding a speed of 100 miles per hour,
It is a long narrow meandering current of high speed winds near the tropopause blowing from generally westerly direction and often exceeding a speed of 150 miles per hour,
It is a long narrow meandering current of high speed winds near the tropopause blowing from generally westerly direction and often exceeding a speed of 250 miles per hour,
It is a long narrow meandering current of high speed winds near the tropopause blowing from generally westerly direction and often exceeding a speed of 200 miles per hour,

31. A vessel is following a leading light to keep her within the middle of a narrow channel. The chart indicates the range to be 001degree. If she is "on range" what course she is steering?
True course 001 deg.
True course 002 deg.
True course 000 deg.
True course 359 deg.

32. What is the main reason NAVAREA warnings are cancelled?
A Navarea warning enforced list can be received through Sat C every week from which the officer can determine the notices that are to be cancelled.
A Navarea warning is superseded by a newer warning.
The Navarea coordinator cancels the message.
A Navarea warning self-cancelled as it had a set cancellation date.

33. What is the deviation of a compass if the Compass heading is 312° and the Magnetic heading is 297°?
15°E
30°E
15°W
30°W

34. Which of the following statements best described how does a snow is formed?
Snow is formed by the aggregation or joining together of ice crystal.
Snow is formed as it falls from towering cumulunimbus clouds.
Snow is formed in the event rain droplets deposited in the ground that are coldest.
Snow is formed when the temperature of the air is below 15Â° C or more below freezing point.

35. What is the line drawn on a chart through places having the same value of magnetic dip?
Agonic
Aclinic
Isoclinal
Isogonal

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