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. |