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Question 2

Which chart is more detailed?

Answer 2

Large-scale chart

Question 3

Where is a GPS best used?

Answer 3

On open waters

Question 4

What kind of radar echo will a low sloping surface return?

Answer 4

A poor echo (like a sand dune)

Question 5

If there is an expected wind-shift and you are on a tack closest the objective, how should you adjust?

Answer 5

Start out heading towards the expected wind-shift, and ‘crack off’ a little

Question 6

Relate height of tide and tidal datum

Answer 6

Tidal datum = chart datum, Height of tide = depth at surface - chart datum

Question 7

What are the three major tide-types?

Answer 7

Diurnal (one per day), Semi-diurnal (two per day), Mixed semi-diurnal (two per day, mixed height)

Question 8

What are the typical chart datums in US and Europe?

Answer 8

US: Mean Lower Low, Europe: Least Astronomical Tide (LAT)

Question 9

What are the two parameters of Tidal Current?

Answer 9

Set - Direction, Drift - Speed

Question 10

What are the nominal accuracies of GPS and DGPS?

Answer 10

20/1 yards

Question 11

How many feet in a meter?

Answer 11

3.28

Question 12

What is the purpose of deploying a drogue?

Answer 12

Prevent broaching

Question 13

Materials to Assemble

Answer 13

• 18649 - entrance to San Francisco Bay
• 18647 - Drakes Bay
• 18645 - Gulf of the Farallones
• 18662 - Half Moon Bay
• Coast Pilot 7
• Light List volume VI
• Chart #1
• Piloting tools
• Tide / current tables, including Height of Tide and Current Speed Tables (table 3)
• Notebook with copy of the Navigation Plan and your tide / current calculations

Question 14

Time

When is Day Light Saving Time?

Answer 14

When time is moved forward - between spring and fall

The rest of year is Standard Time

Question 15

Time

What is GMT, UTC, Zulu, Z, Greenwich time?

Answer 15

• Pacific Standard Time (PST)= UTC - 8 hours
• Pacific Daylight ‘Saving’ Time (PDT)= UTC - 7 hours