AB Deck Safety and Pollution 5

Question 1

Which of the following actions would be a violation of MARPOL Annex I in port?

Accepted Answer

Pumping oily bilge water directly overboard without treatment

Answer

Pumping untreated oily bilge water overboard in port violates MARPOL Annex I, which prohibits such discharges in all port areas.

Question 2

When rigging a bosun's chair to work over the side, the line used must be:

Accepted Answer

A properly tested and certified safety line secured independently of the working line

Answer

A separate, certified safety line must be rigged independently so that if the working line fails, the safety line prevents the worker from falling into the sea.

Question 3

What is the meaning of a black circle on the NFPA 704 hazard diamond (fire diamond)?

Accepted Answer

The material is water-reactive

Answer

A white square with a 'W' crossed out on the NFPA 704 diamond indicates the material reacts dangerously with water; a plain white section can indicate special hazard codes.

Question 4

A seaman finds an unlabeled drum on deck containing an unknown liquid. The correct action is to:

Accepted Answer

Treat it as hazardous, do not open it, and report to the officer on watch

Answer

Unknown chemicals must always be treated as hazardous; the drum should not be opened and must be reported to a supervisor immediately.

Question 5

Under MARPOL Annex VI, what emission is controlled by Tier III NOx standards when operating in a NOx Emission Control Area (NECA)?

Accepted Answer

Nitrogen oxides (NOx) from marine diesel engines

Answer

MARPOL Annex VI Tier III NOx standards limit nitrogen oxide emissions from marine diesel engines when operating within designated NECAs.

(AB) Able Seaman Exam Practice Test

(AB) Able Seaman Exam Practice Test

AB Deck Safety and Pollution 5