OIC-NW MARINA REVIEWER / QUIZ COMPETENCE 1 - PART 4 - Seaman Kowts

COMPETENCE 1 – Plan and Conduct a Passage and Determine Position

Results

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QUIZ START

#1. A steep barometric gradient indicates:

calms

light winds

strong winds

precipitation

Incorrect!

#2. Why are low altitude sun sights not generally used?

Errors due to unusual refraction may exist

Sextants may have large errors at small angles of elevation

Modern sight reduction tables are not complete for low altitudes below 5°

The glare on the horizon causes irradiation errors

Incorrect!

#3. In the horizon system of coordinates what is equivalent to the poles on the Earth?

Celestial poles

Zenith, nadir

Ecliptic poles

Nodes

Incorrect!

#4. A great circle will intersect the equator at how many degrees of longitude apart?

0deg.

45deg.

90deg.

180deg.

Incorrect!

#5. The Milky Way is an example of a:

cluster

galaxy

nova

nebula

Incorrect!

#6. The point where the vertical rise or fall of tide has stopped is referred to as:

slack water

the rip tide

the stand of the tide

the reverse of the tide

Incorrect!

#7. At 0000 you fix your position and change course to 090°T. At 0030 you again fix your position and it is 0.5 mile east of your DR. Which statement is TRUE?

The current is easterly

The drift is 0.5 knot

You should alter course to the right to regain the track line

The current is perpendicular to your track line

Incorrect!

#8. In a microbarograph, the pen should be checked and the inkwell filled:

each time the chart is changed

once per month

once per week

daily

Incorrect!

#9. The autumnal equinox is the point where the Sun is at:

maximum declination north

maximum declination south

0° declination going to northerly declinations

0° declination going to southerly declinations

Incorrect!

#10. In the Northern Hemisphere, the largest waves or swells created by a typhoon or hurricane will be located:

in the southeast quadrant of the storm

directly behind the storm center

forward and to the right of its course

behind and to the left of its course

Incorrect!

#11. During the month of October the Sun’s declination is:

north and increasing

north and decreasing

south and increasing

south and decreasing

Incorrect!

#12. All of the following can be found on a Pilot Chart EXCEPT information concerning the:

percentage of frequency of wave heights

percentage of poor visibility conditions

sea surface temperatures

amounts of precipitation

Incorrect!

#13. The winter solstice is the point where the Sun is at:

maximum declination north

maximum declination south

0° declination going to northerly declinations

0° declination going to southerly declinations

Incorrect!

#14. The summer solstice is the point where the Sun is at:

maximum declination north

maximum declination south

0° declination going to northerly declinations

0° declination going to southerly declinations

Incorrect!

#15. A vertex of the navigational triangle is NOT located at the:

elevated pole

celestial body

Zenith

coaltitude

Incorrect!

#16. The FIRST indications a mariner will have of the approach of a warm front will be:

large cumulonimbus clouds building up

low dark clouds with intermittent rain

fog caused by the warm air passing over the cooler water

high clouds gradually followed by lower thicker clouds

Incorrect!

#17. The GHA of the first point of Aries is 315deg. and the GHA of a planet is 150deg.. What is the right ascension of the planet?

7 hours

11 hours

19 hours

23 hours

Incorrect!

#18. The date is the same all over the world at:

0000 GMT

1200 GMT

0000 LMT for an observer at 90°E longitude

no time

Incorrect!

#19. You are proceeding up a channel at night. It is marked by a range which bears 185°T. You steady up on a compass course of 180° with the range in line dead ahead. This indicates that you:

must come right to get on the range

course is in error

compass has some easterly error

are being affected by a southerly current

Incorrect!

#20. An alternating light:

shows a light with varying lengths of the lighted period

shows a light that changes color

marks an alternate lesser- used channel

is used as a replacement for another light

Incorrect!

#21. What does not contribute to the commercial GPS receiver position error?

Satellite clock

Ship's speed

Atmospheric/Ionospheric propagation

Satellites' orbits

Incorrect!

#22. A position on the Earth has a longitude of 74°10’E. Its celestial counterpart would have a:

GHA of 285°50'

SHA of 74°10'

SHA of 285°50'

LHA of 74°10'E

Incorrect!

#23. A celestial body will cross the prime vertical circle when the latitude is numerically:

greater than the declination and both are of the same name

less than the declination and both are of the same name

greater than the declination and both are of contrary name

less than the declination and both are of contrary name

Incorrect!

#24. The intensity of a hurricane as it reaches higher latitudes and cooler waters:

Increases

remains the same

decreases

None of the above

Incorrect!

#25. How is variation indicated on a small-scale nautical chart?

Magnetic compass table

Magnetic meridians

Isogonic lines

Variation is not indicated on small-scale nautical charts.

Incorrect!

#26. When using an echo sounder in deep water, it is NOT unusual to:

receive a strong return at about 200 fathoms (366 meters) during the day, and one nearer the

receive a first return near the surface during the day, and a strong return at about 200 fathoms

receive false echoes at a constant depth day and night

have to recalibrate every couple of days due to inaccurate readings

Incorrect!

#27. With respect to failure warnings and status indications, GPS receivers should provide, at a minimum:

a warning of loss of position

a cross-track error alarm

an indication of a change in satellite configuration

an alarm if engine speed is suddenly reduced

Incorrect!

#28. When the moon is new or full, which type of tides occur?

Neap

Spring

Diurnal

Apogean

Incorrect!

#29. What is the length of a nautical mile?

1,800 meters

2,000 yards

6,076 feet

5,280 feet

Incorrect!

#30. Barometer readings in weather reports are given in terms of pressure at:

sea level

Washington, D.C.

the weather station

the broadcasting station

Incorrect!

#31. Stormy weather is usually associated with regions of:

high barometric pressure

low barometric pressure

steady barometric pressure

changing barometric pressure

Incorrect!

#32. If the magnetic heading is greater than the compass heading, the deviation is:

east

west

north

south

Incorrect!

#33. Mean high water is the reference plane used for:

all vertical measurements

heights above water of land features such as lights

soundings on the East and West Coasts

water depths on the East Coast only

Incorrect!

#34. The standard time meridian for description +12 is:

172.5°E

180.0°

172.5°W

165.0°W

Incorrect!

#35. What will act to dissipate fog?

Upwelling cold water

Advection of warm air over a colder surface

Rain that is warmer than air

Downslope motion of an air mass along a coast

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.

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Results

#1. A steep barometric gradient indicates:

#2. Why are low altitude sun sights not generally used?

#3. In the horizon system of coordinates what is equivalent to the poles on the Earth?

#4. A great circle will intersect the equator at how many degrees of longitude apart?

#5. The Milky Way is an example of a:

#6. The point where the vertical rise or fall of tide has stopped is referred to as:

#7. At 0000 you fix your position and change course to 090°T. At 0030 you again fix your position and it is 0.5 mile east of your DR. Which statement is TRUE?

#8. In a microbarograph, the pen should be checked and the inkwell filled:

#9. The autumnal equinox is the point where the Sun is at:

#10. In the Northern Hemisphere, the largest waves or swells created by a typhoon or hurricane will be located:

#11. During the month of October the Sun’s declination is:

#12. All of the following can be found on a Pilot Chart EXCEPT information concerning the:

#13. The winter solstice is the point where the Sun is at:

#14. The summer solstice is the point where the Sun is at:

#15. A vertex of the navigational triangle is NOT located at the:

#16. The FIRST indications a mariner will have of the approach of a warm front will be:

#17. The GHA of the first point of Aries is 315deg. and the GHA of a planet is 150deg.. What is the right ascension of the planet?

#18. The date is the same all over the world at:

#19. You are proceeding up a channel at night. It is marked by a range which bears 185°T. You steady up on a compass course of 180° with the range in line dead ahead. This indicates that you:

#20. An alternating light:

#21. What does not contribute to the commercial GPS receiver position error?

#22. A position on the Earth has a longitude of 74°10’E. Its celestial counterpart would have a:

#23. A celestial body will cross the prime vertical circle when the latitude is numerically:

#24. The intensity of a hurricane as it reaches higher latitudes and cooler waters:

#25. How is variation indicated on a small-scale nautical chart?

#26. When using an echo sounder in deep water, it is NOT unusual to:

#27. With respect to failure warnings and status indications, GPS receivers should provide, at a minimum:

#28. When the moon is new or full, which type of tides occur?

#29. What is the length of a nautical mile?

#30. Barometer readings in weather reports are given in terms of pressure at:

#31. Stormy weather is usually associated with regions of:

#32. If the magnetic heading is greater than the compass heading, the deviation is:

#33. Mean high water is the reference plane used for:

#34. The standard time meridian for description +12 is:

#35. What will act to dissipate fog?

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