Which magnetic compass corrector(s) can be set while the vessel is on a heading of magnetic north or magnetic south?
A) Quadrantal spheres B) Heeling magnets C) Flinders bar D) Fore-and-aft magnets E)NULL
A) Quadrantal spheres B) Heeling magnets C) Flinders bar D) Fore-and-aft magnets E)NULL
A) index error B) prismatic error C) perpendicularity of the horizon glass D) perpendicularity of the index mirror E)NULL
A) in the dangerous semicircle B) in the navigable semicircle C) directly in the path of the storm D) in the storm center E)NULL
A) not more than 1:25,000 B) 1:35,000 C) 1:150,000 D) not less than 1:500,000 E)NULL
A) signals begin to blink B) signals begin to shift C) stations discontinue transmission D) stations transmit grass E)NULL
A) centimeters B) Inches C) Degrees D) Feet E)NULL
A) proceeding from seaward B) crossing the river C) ascending the river D) descending the river E)NULL
A) 5.3 feet (1.6 m) B) 5.6 feet (1.7 m) C) 6.2 feet (1.9 m) D) 6.8 feet (2.7 m) E)NULL
A) Notice to Mariners B) Coast Pilots C) nautical chart catalogs D) Sailing Directions E)NULL
A) Prismatic error B) Index error C) Side error D) Error of collimation E)NULL