CHEMCO Exit Exam • Set 5 Question 23 of 30

A self-contained breathing apparatus is used to

✓

Direct Answer

Option C: enter areas that may contain dangerous fumes or lack oxygen

A Self-Contained Breathing Apparatus (SCBA) provides a supply of breathable air, allowing entry into confined spaces or areas with toxic fumes or insufficient oxygen, ensuring personnel safety as per STCW and general safety practices.

All Options

make underwater repairs to barges

determine if the air in a tank is safe for men

enter areas that may contain dangerous fumes or lack oxygen (Correct Answer)

resuscitate an unconscious person

Detailed Explanation & Context

Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Advanced Training for Chemical Tanker Cargo Operations (CHEMCO).

Practice Full CHEMCO Set 5

Test yourself with 30 interactive questions, live timer, and instant score.

Launch Practice Simulator →

Question Discussion & Notes

Have a doubt, memory trick, or exam update? Share your insights with fellow mariners.

Loading mariner discussions...

« Previous Question Next Question »

More Questions in CHEMCO Set 5

View All 30 →

Q1 The terminal indicates to you that they are going to use a booster pump to assist the discharging operation. You start the discharge and in a few minutes the pressure drops sharply. This could be a result of the ___________. Q2 A restricted tank gauging system Q3 The lowest temperature at which the liquid remains a fluid is called the: Q4 Devices that release small amount of liquid or vapor while in use are known as ______ devices. Q5 An inert gas system installed on a tanker is designed to Q6 For the purposes of cargo oil containment, the fixed container under the manifold of an eight-inch loading line must hold a minimum of Q7 What is the purpose of the relief valve of a cargo pump? Q8 Identify correct labelling for Tanker VEC Q9 A single fitting installed in a pipeline that either blanks off the pipe or allows a full flow passage of a liquid through the pipe is referred to as a _____. Q10 Hydrocarbon gas normally encounted in petroleum tankers cannot burn in an atmosphere containing oxygen less than