OIC-NW MARINA REVIEWER / QUIZ COMPETENCE 1 - PART 2 - Seaman Kowts

COMPETENCE 1 – Plan and Conduct a Passage and Determine Position

Results

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QUIZ START

#1. While on watch, you notice that the air temperature is dropping and is approaching the dew point. Which type of weather should be forecasted?

Hail

Heavy rain

Sleet

Fog

Incorrect!

#2. The part of a sextant mounted directly over the pivot of the index arm is the:

index mirror

horizon glass

micrometer drum

telescope

Incorrect!

#3. When adjusting a magnetic compass for error, a deviation table should be made:

before correcting for any deviation

after correcting for variation

after adjusting the fore- and-aft and athwartships permanent magnets

before the quadrantal correctors are placed on the compass

Incorrect!

#4. The purpose of the “set” hand on an aneroid barometer is to:

adjust the barometer

indicate any change in the reading of the barometer

provide a correction for height above sea level

provide a correction for temperature changes

Incorrect!

#5. Spring tides occur:

at the start of spring, when the Sun is nearly over the equator

only when the Sun and Moon are on the same side of the Earth and nearly in line

when the Sun and Moon are at approximately 90° to each other as seen from the Earth

when the Sun, Moon, and Earth are nearly in line, in any order

Incorrect!

#6. Fog is formed when:

the moisture in the air is condensed into small droplets

air is cooled to its dew point

the base of a cloud is on the ground

All of the above

Incorrect!

#7. What is NOT a side of the navigational triangle used in sight reduction?

Altitude

Zenith distance

Colatitude

Polar distance

Incorrect!

#8. The climate of the northern Gulf coast:

is humid and subtropical throughout the year

has an east coast marine type of climate

is a warm marine type of climate

varies from warm to subtropical

Incorrect!

#9. A double star is a star that:

has a declination equal to twice that of the Sun

comprises two stars that appear close together

is twice as bright as a single star

suddenly becomes much brighter and then fades

Incorrect!

#10. An empirical measure describing wind intensity based mainly on observed sea conditions.

Anemometer

Beaufort Scale

Wind Vane

Wind Speed

Incorrect!

#11. From those listed, which of the statement about the dip of a magnet is TRUE?

At the magnetic poles, the dip is least and the directive force is reduced

At the magnetic equator, the dip is maximum and the directive force the least

At the magnetic poles , the dip is least and the directive force is the greatest

At the magnetic equator, the dip is zero and the directive force greatest

Incorrect!

#12. In the Northern hemisphere which semicircle of a hurricane is the navigable semicircle?

Left

Right

Front

Back

Incorrect!

#13. Charts showing the coast of Mexico are produced by the United States:

National Geospatial- Intelligence Agency

Coast Guard

Naval Observatory

National Ocean Service

Incorrect!

#14. According to Buys Ballot’s law, when an observer in the Northern Hemisphere experiences a northeast wind the center of low pressure is located to the:

northeast

west-southwest

northwest

south-southeast

Incorrect!

#15. The belt of light and variable winds between the westerly wind belt and the northeast trade winds is called the:

subtropical high pressure belt

intertropical convergence zone

doldrum belt

polar frontal zone

Incorrect!

#16. Discounting slip, if your vessel is turning RPM for 10 knots and making good a speed of 10 knots, the current could be:

with you at 10 knots

against you at 10 knots

slack

with you at 2 knots

Incorrect!

#17. Denebola is found in what constellation?

Hydrus

Leo

Centaurus

Aquila

Incorrect!

#18. Which general weather conditions should you expect to find in a low pressure system?

Fair weather

Precipitation and cloudiness

Scattered clouds at high elevations

Gradual clearing and cooler temperatures

Incorrect!

#19. The temperature at which the air is saturated with water vapor and below which condensation of water vapor will occur is referred to as the:

precipitation point

vapor point

dew point

absolute humidity

Incorrect!

#20. You plot a fix using three lines of position and find they intersect in a triangle. The actual position of the vessel:

is outside of the triangle

may be anywhere in the triangle

may be inside or outside of the triangle

is the geometric center of the triangle

Incorrect!

#21. The error in a sextant altitude caused by refraction is greatest when the celestial body is:

high in the sky

near the horizon

rising

at or near transit

Incorrect!

#22. In the horizon system of coordinates what is equivalent to the declination of the equator system?

Nadir

Azimuth angle

Altitude

Zenith distance

Incorrect!

#23. To find a magnetic compass course from a true course you must apply:

deviation

deviation and variation

variation

magnetic anomalies (local disturbances)

Incorrect!

#24. Which publication should you check for complete information on Puget Sound weather conditions?

Sailing Directions

Light List

Coast Pilot

Chart of the area

Incorrect!

#25. Which type of GPS receiver has at least four channels to process information from several satellites simultaneously?

Sequential

Continuous

Multiplex

None of the above

Incorrect!

#26. What is the most important source of information to be used in correcting charts and keeping them up to date?

Fleet Guides

Notice to Mariners

Sailing Directions

Pilot Charts

Incorrect!

#27. When drawing a weather map and an isobar crosses a front, the isobar is drawn:

perpendicular to the front

kinked and pointing away from the low

kinked and pointing towards the low

kinked and pointing towards the high for a warm front only

Incorrect!

#28. When within 300 miles of a named tropical storm or hurricane, it is standard practice to send weather reports every:

8 hours

6 hours

3 hours

hour

Incorrect!

#29. Inferior conjunction is possible for:

Mars

Venus

Saturn

Jupiter

Incorrect!

#30. Monsoons are characterized by:

light, variable winds with little or no humidity

strong, gusty winds that blow from the same general direction all year

steady winds that reverse direction semiannually

strong, cyclonic winds that change direction to conform to the passage of an extreme low

Incorrect!

#31. A nautical mile is a distance of approximately how much greater than or less than a statute mile?

1/4 less

1/7 less

1/4 greater

1/7 greater

Incorrect!

#32. Anticyclones are usually characterized by:

dry, fair weather

high winds and cloudiness

gustiness and continuous precipitation

overcast skies

Incorrect!

#33. In North America the majority of the weather systems move from:

north to south

south to north

east to west

west to east

Incorrect!

#34. Gyrocompass repeaters reproduce the indications of the master gyrocompass. They are:

accurate only in the Polar regions

accurate electronic servomechanisms

hand operated

accurate only if the vessel is underway

Incorrect!

#35. For navigational purposes, each great circle on the Earth has a length of:

3,600 miles

5,400 miles

12,500 miles

21,600 miles

Incorrect!

Finish

There are 35 questions for the actual examination for Competence 1 for OIC-NW with a passing rate of 70%. This means that you are only allowed to make 10 mistakes.

DISCLAIMER

The questionnaires contained in this “reviewer” are extracted from the post released by MARINA on their official website and other review materials. Please note that Seaman Kowts is not affiliated with, endorsed by, or connected to the official website of MARINA. The information provided on this website is for general informational and educational purposes only and should not be relied upon as official or authoritative. If you require official information or services, please visit the official website or any relevant review center. We do not assume any responsibility or liability for any consequences resulting from the use of information or services provided on this website.

Results

#1. While on watch, you notice that the air temperature is dropping and is approaching the dew point. Which type of weather should be forecasted?

#2. The part of a sextant mounted directly over the pivot of the index arm is the:

#3. When adjusting a magnetic compass for error, a deviation table should be made:

#4. The purpose of the “set” hand on an aneroid barometer is to:

#5. Spring tides occur:

#6. Fog is formed when:

#7. What is NOT a side of the navigational triangle used in sight reduction?

#8. The climate of the northern Gulf coast:

#9. A double star is a star that:

#10. An empirical measure describing wind intensity based mainly on observed sea conditions.

#11. From those listed, which of the statement about the dip of a magnet is TRUE?

#12. In the Northern hemisphere which semicircle of a hurricane is the navigable semicircle?

#13. Charts showing the coast of Mexico are produced by the United States:

#14. According to Buys Ballot’s law, when an observer in the Northern Hemisphere experiences a northeast wind the center of low pressure is located to the:

#15. The belt of light and variable winds between the westerly wind belt and the northeast trade winds is called the:

#16. Discounting slip, if your vessel is turning RPM for 10 knots and making good a speed of 10 knots, the current could be:

#17. Denebola is found in what constellation?

#18. Which general weather conditions should you expect to find in a low pressure system?

#19. The temperature at which the air is saturated with water vapor and below which condensation of water vapor will occur is referred to as the:

#20. You plot a fix using three lines of position and find they intersect in a triangle. The actual position of the vessel:

#21. The error in a sextant altitude caused by refraction is greatest when the celestial body is:

#22. In the horizon system of coordinates what is equivalent to the declination of the equator system?

#23. To find a magnetic compass course from a true course you must apply:

#24. Which publication should you check for complete information on Puget Sound weather conditions?

#25. Which type of GPS receiver has at least four channels to process information from several satellites simultaneously?

#26. What is the most important source of information to be used in correcting charts and keeping them up to date?

#27. When drawing a weather map and an isobar crosses a front, the isobar is drawn:

#28. When within 300 miles of a named tropical storm or hurricane, it is standard practice to send weather reports every:

#29. Inferior conjunction is possible for:

#30. Monsoons are characterized by:

#31. A nautical mile is a distance of approximately how much greater than or less than a statute mile?

#32. Anticyclones are usually characterized by:

#33. In North America the majority of the weather systems move from:

#34. Gyrocompass repeaters reproduce the indications of the master gyrocompass. They are:

#35. For navigational purposes, each great circle on the Earth has a length of:

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