Oral examination with reference to the standard examination compass binnacle and equipment. in the following aspects of adjusting:
(a) |
Types of compasses on the vessels concerned; |
(b) |
specification of card and liquid; |
(c) |
testing for mechanical deficiencies and topping up; |
(d) |
accessories and equipment- test for faults and alignment; |
(e) |
correctors-test for permanent magnetism; |
(f) |
function of correctors; |
(g) |
siting of correctors; |
(h) |
sequence of placing correctors; |
(i) |
methods of determining deviations, with particular reference to types of vessels concerned; |
(j) |
dealing with interfering fields caused other than by hard iron and soft iron effects; |
(k) |
safety of navigation requirements relating to compasses and compass equipment; |
(I) |
modus operandi of adjustment; |
(m) |
residual deviations-factors to be taken into account when determining whether further adjustment should be contemplated. |