Coast Guard exam questions, "Compass Problems with Leeway, Finding a Gyro Course to Steer"
1. You want to make good a true course of 137°. A north-northeast wind produces a 3° leeway. The variation is 11° west, deviation is 5° east, and gyrocompass error is 2° east. What course must you steer per gyrocompass to make the true course good?
A. 132° pgc
B. 134° pgc
C. 136° pgc
D. 138° pgc
2. The track line on the chart is 274° T. Variation is 4° E, and deviation is 2° E. The gyro error is 1.5° E. What course would be steered by gyrocompass to make good the desired course?
A. 280.5° pgc
B. 278.0 pgc
C. 275.5° pgc
D. 272.5° pgc
3. The true course between two points is 057°. Your gyrocompass has an error of 3° east and you make an allowance of 1° leeway for a northnorthwest wind. Which gyro course should be steered to make the true course good?
A. 053° pgc
B. 056° pgc
C. 059° pgc
D. 060° pgc
4. The true course between two points is 119°. Your gyrocompass has an error of 3° E. You allow of 4° leeway for a south-southwest wind. What gyro course should be steered to make the true course good?
A. 112° pgc
B. 118° pgc
C. 120° pgc
D. 126° pgc
5. The true course between two points is 041°. Your gyrocompass has an error of 1° W. You make an allowance of 2° leeway for a east-southeast wind. What gyro course should be steered to make the true course good?
A. 040° pgc
B. 042° pgc
C. 043° pgc
D. 044° pgc
6. The true course between two points is 220°. Your gyrocompass has an error of 1° E. You make an allowance of 1° leeway for a north-northwest wind. What gyro course should be steered to make the true course good?
A. 220° pgc
B. 221° pgc
C. 222° pgc
D. 223° pgc
7. The true course between two pOints is 312°. Your gyrocompass has an error of 3° W. You make an, allowance of 4° leeway for a west by south wind. What gyro course should be steered to make the true course good?
A. 305° pgc
B. 311° pgc
C. 315° pgc
D. 318° pgc
8. The true course between two points is 078°. Your gyrocompass has an error of 2° E. You make an allowance of 3° leeway for a north wind. What gyro course should be steered to make the true course good?
A. 073° pgc
B. 075° pgc
C. 077° pgc
D. 079° pgc
