Oil Tanker Competence

Enclosed Space Entry – Safety & Procedures

This test evaluates your understanding of hazards, regulations, risk assessment, safety precautions, and emergency procedures related to enclosed space entry. It covers IMO and SOLAS requirements, identification of risks, pre-entry assessments, use of personal protective equipment (PPE), atmospheric testing, ventilation, safety watch protocols, and emergency response procedures.

Питань 15

Час 9 min

Мова Англійська

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Питання 1

What is the purpose of the Lower Explosive Limit (LEL) parameter of flammable gases during atmosphere testing?

A To detect explosive atmospheres (e.g., hydrocarbon vapors).

B To prevent explosion.

C To detect hydrogen sulfide.

D To test gas detector.

Питання 2

The minimum recommended IMO standards for air supplied respirators for ships carrying liquids in bulk containing benzene when an exposure limits are exceeded during normal cargo handling operations?

A In areas where the airborne concentration of benzene vapours is expected to exceed 50 ppm, but not more than 100 ppm.

B In areas where the airborne concentration of benzene vapours is expected to exceed 100 ppm, but not more than 1000 ppm.

C In areas where the airborne concentration of benzene vapours is expected to exceed 10 ppm, but not more than 50 ppm.

D In areas where the airborne concentration of benzene vapours is expected to exceed 1 ppm, but not more than 10 ppm.

Питання 3

What is the maximum acceptable reading on a flammable gas meter before entering to an enclosed space?

A Up to 1% of the lower flammable limit.

B Up to 1% concentration by volume.

C Up to the lower flammable limit.

D Up to 50% of the lower flammable limit.

Питання 4

Which answer is a high‑risk operation?

A Master and Chief Officer enter an enclosed space together.

B Master and Chief Engineer enter an enclosed space together.

C Master and Second Engineer enter an enclosed space together.

D Any of these is high risk because the Master is the key person on board.

Питання 5

Which of the following is not a safety standard?

A ISHS.

B ANSI.

C EN.

D NFPA.

Enclosed Space Entry – Safety & Procedures

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