Sunday, March 1, 2009

Compass Leeway Problems, Finding a Course to Steer (psc)

Coast Guard exam questions "Compass Problems with Leeway, Finding a Course to Steer (psc)"
1. You desire to make good 152° T. The magnetic compass deviation is 4° E. the variation is 5° E, and the gyro error is 3° E. A southwesterly wind produces a 4° leeway. Which course would you steer per standard compass to make good the true course?
A. 137° psc
B. 141° psc
C. 143° psc
D. 147° psc

2. You desire to make good a true course of 046°. The variation is 6° E, magnetic compass deviation is 12° W. and the gyrocompass error is 3° W. A northerly wind produces a 5° leeway. What is the course to steer per standard magnetic compass to make good the true course?
A. 047° psc
B. 049° psc
C. 052° psc
D. 057° psc

3. You desire to make good a true course of 129°. The variation is 7° E, magnetic compass deviation is 4° E, and gyrocompass error is 2° W. An easterly wind produces a 4° leeway. What is the course to steer per standard magnetic compass to make the true course good?
A. 114° psc
B. 116° psc
C. 122° psc
D. 126° psc

4. You desire to make good a true course of 203°. The variation is 19° E, magnetic compass deviation is 2° W, and gyrocompass error is 10 E. A westerly wind produces a 3° leeway. What is the course to steer per standard magnetic compass to make the true course good?
A. 183° psc
B. 189° psc
C. 210° psc
D. 223° psc

5. You desire to make good a true course of 329°. The variation is 13° W, magnetic compass deviation is 4° E, and gyrocompass error is 2° W. A southerly wind produces a 1° leeway. What is the course to steer per standard magnetic compass to make the true course good?
A. 319° psc
B. 321° psc
C. 337° psc
D. 339° psc

6. You desire to make good a true course of 151°. The variation is 15° E, magnetic compass deviation is 9° W, and gyrocompass error is 3° E. A southwesterly wind produces a 2° leeway. What is the course to steer per standard magnetic compass to make the true course good?
A. 145° psc
B. 147° psc
C. 150° psc
D. 153° psc

7. You desire to make good a true course of 067°. The variation is 11° W. magnetic compass deviation is 3° E. and gyrocompass error is 1° W. A northwesterly wind produces a 5° leeway. What is the course to steer per standard magnetic compass to make the true course good?
A. 054° psc
B. 064° psc
C. 070° psc
D. 074° psc

8. You desire to make good a true course of 038°. The variation is 5° E. magnetic compass deviation is 4° W, and gyrocompass error is 4° W. A southeasterly wind produces a 4° leeway. What is the course to steer per standard magnetic compass to make the true course good?
A. 033° psc
B. 041° psc
C. 043° psc
D. 047° psc
 
google200096da794a1a23.html