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.

Questions 15

Time Limit 9 min

Language English

Sample Questions

Here are some example questions from this quiz. Download the GYRO app to take the full test.

Question 1

How should chemical indicator tubes be used?

A Single use only.

B Multiple use according to manufacturer’s instructions.

C Iterative use as per SMS and manufacturer’s instructions.

D Chemical indicator tubes are strictly prohibited on chemical tankers.

Question 2

Is the lifeboat considered an enclosed space under ISGOTT sixth edition?

A Yes, but according to the SMS a lifeboat can be subject to enclosed‑space entry procedures.

B No.

C Yes.

D No, but the SMS can designate a lifeboat as an enclosed space.

Question 3

What is maximum value of oxygen in normal atmospheric air?

A 21% by volume.

B 19% by volume.

C 23% by volume.

D 50% by volume.

Question 4

Who must sign a work permit for an enclosed space?

A A responsible person and the worker in charge of the task.

B The person who did the risk assessment.

C All those involved in the work.

D The ship's safety officer.

Question 5

What is the normal concentration of oxygen in fresh air according to ISGOTT 6th edition?

A 20.9 %.

B 21 %.

C Minimum 20.1 % permitted.

D Lies between 20 % and 21 %.

Enclosed Space Entry – Safety & Procedures

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