Maritime Navigation Quiz

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ReverentFlute
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20 Questions

What can change the polarity of the magnetic properties of a vessel?

Being struck by lightning

What does encountering a white buoy marked with an orange rectangle indicate?

Mid-channel

With an anticyclone over Europe, what is the expected weather?

Clear skies or fair weather CU in summer, fog in winter

What is the altitude measured with sextant corrected for dip and index error called?

Apparent altitude

What would you expect of the relative humidity of a place throughout the 24 hours of the day?

Highest during the morning and evening, lowest during midday and midnight

What is the tendency of magnetic lines of induction to concentrate on material of high permeability?

Magnetic shielding

Where is the compass card attached in a gyrocompass?

Spider element

If there are small cumulus clouds in the morning in summer, what kind of cloud never would you expect and is it reasonable to forecast later in that day?

Clear skies

What would be the behavior of the wind above the level of the ridge to indicate the formation of mountain waves?

Increase and then reverse in direction

If you are in the Southern 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 pressure is in your right

What is the tendency of magnetic lines of induction to concentrate on material of high permeability?

Magnetic shielding

What can change the polarity of the magnetic properties of a vessel?

Loading a homogenious cargo such as steel plate and iron bars

Where is the compass card attached in a gyrocompass?

Spider element

Encountering a white buoy marked with an orange rectangle would indicate:

A fish net area

What is the speed of the wind in a Beaufort force 8?

Wind speed 48 to 55 knots mean 52 knots

With an anticyclone over Europe, what is the expected weather?

Clear skies or fair weather CU in summer, fog in winter

If there are small cumulus clouds in the morning in summer, what kind of cloud never would you expect and is it reasonable to forecast later in that day?

Clear skies

What do you call the altitude measured with sextant corrected for dip and index error?

Apparent altitude

If you are in the Southern Hemisphere as a general rule (Buy’s Ballot Law), how would you determine the center of low pressure?

Faces the surface of the wind the center of low is toward your right

What will you expect of the relative humidity of a place throughout the 24 hours of the day?

It decreases during daytime and increases at night

Test your knowledge of maritime navigation with questions about magnetic properties of vessels and buoy markings. Learn about the factors that can change the polarity of a vessel's magnetic properties and understand the significance of encountering specific buoy markings.

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