Ann's Test No. 4 (Chesapeake Bay)
Parameters for this test
Var = 10 W
Dev = 0: 2w 30: 3W 60: 2W 90: 1W
120: 0W 150: 1E 180: 2E 210: 1E
240: 0W 270: 1W 300: 2W 330: 3W
3771: Two beacons form a range in the direction of 221.5ø T. The
range is seen in line from your vessel bearing 223ø per gyro
compass. The variation in the area is 4ø E. What is the
error of your gyro compass?
- Y
A: 1.5ø W
- N
B: 2.5ø W
- N
C: 5.5ø W
- N
D: 2.5ø E
3772: Your ship is entering port from sea, and you sight a pair
of range lights. When in line, they bear 315ø per standard
magnetic compass. The chart shows that the range bearing is
312ø T, and that variation is 6ø W. What is the deviation
of your compass at the time of the sighting?
- Y
A: 3ø E
- N
B: 3ø W
- N
C: 9ø E
- N
D: 9ø W
6844: At 1010 your vessel passes close abeam to Buoy "NCB" in the
inbound traffic lane. At this time the Chesapeake Bay
Pilot informs you that he will not board your vessel until
1100. The pilot boat is located 1.5 miles northeast of
Cape Henry Light. What should you reduce your speed to in
order to arrive at the pilot boat at this time?
- N
A: 5.9 knots
- N
B: 7.5 knots
- Y
C: 8.2 knots
- N
D: 9.8 knots
10103a: Your loran shows a position of LAT 37ø01.5' N, LONG
75ø31.7' W. What is the course per standard magnetic
compass to Chesapeake Light?
- Y
A: 241ø
- N
B: 238ø
- N
C: 235ø
- N
D: 229ø
197a: At 2215, Cape Henry Light bears 251ø psc,
and Chesapeake Channel Tunnel North
Light bears 328ø psc. You are heading 282ø psc. What is
the relative bearing of Thimble Shoal Light?
- Y
A: 014ø
- N
B: 017ø
- N
C: 280ø
- N
D: 332ø
198: While navigating inbound Thimble Shoal Channel system you
must ____________.
- N
A: navigate in the main channel when between Trestles A & B
- Y
B: use the north auxiliary channel
- N
C: remain 1500 yards (1360 meters) from large naval vessels
- N
D: maintain a speed of six knots
228: Your height of eye is 25 feet (7.6 meters). If the
visibility is 5.5 nautical miles, what is the luminous
range of Wolf Trap Light?
- N
A: 17.0 miles
- N
B: 16.0 miles
- N
C: 12.0 miles
- Y
D: 7.5 miles
229: If you want a more detailed chart of the area at your 2115
DR position (37 14.4' N; 76 35.5' W), which chart should you use?
- N
A: 12222
- N
B: 12225
- Y
C: 12224
- N
D: 12222
230: At 2123, your position is LAT 37ø20.0' N, LONG 76ø03.0' W.
What is your distance offshore of Savage Neck?
- Y
A: 1.7 miles
- N
B: 2.6 miles
- N
C: 3.4 miles
- N
D: 4.6 miles
319: At 2100, you have passed through the Chesapeake Bay Bridge
and Tunnel and determine your position to be LAT 37ø01.3'
N, LONG 76ø03.0' W. The current is flooding in a direction
of 303ø T at 2.5 knots. Adjusting your course for set and
drift, which course would you steer while turning RPMs for
6 knots to make good a course of 175ø T?
- N
A: 190ø T
- N
B: 183ø T
- N
C: 164ø T
- Y
D: 156ø T