Enclosed Places Are Dangerous Places

Choose a question set and start learning or take an exam.

Enclosed Places Are Dangerous Places
19 questions
Search

About this collection

MINTRA CET includes short topic-based sets such as incident investigation, accommodation safety, anchoring operations and firefighting. Study an individual module, then review your mistakes in your account.

“MINTRA CET — Enclosed Places Are Dangerous Places” contains 19 questions across 1 collection.

Learning

Learning mode has no timer. After answering, you see feedback and the correct options. You can return to a question and repeat a topic.

Exam

A practice exam lasts up to 60 minutes and includes up to 50 questions from the selected collection. Correct answers and results appear after completion.

Sample questions and answers

These examples come from the published collection. Choose Learning to study questions in sequence, or Exam to check your knowledge.

Can we guess or estimate what the oxygen level is in an enclosed space?

One correct answer

Yes, we can smell the atmosphere after opening up.
Yes, we can look for signs of rusting or other decay.
No, the only way to ascertain the level is by accurate measuring.✓ Correct answer

What is the normal level of oxygen in the atmosphere?

One correct answer

8 %.
20,9 %.✓ Correct answer
50 %.

What happens when someone enters an unchecked, low oxygen enclosed space?

One correct answer

They will lose consciousness and die.✓ Correct answer
Exhaustion will set in.
They will quickly start feeling dizzy.

Are there any other places where we encounter dangerously low levels of oxygen?

One correct answer

No. The atmosphere surrounding the Earth contains 20,9 % safe level.
Yes, in tropical forests.
Yes, flying at a height of 10 000 metres, pilots encounter oxygen levels at around 5 %.✓ Correct answer

How important is the saturation level of oxygen in the body?

One correct answer

Very important. If it falls below 80 %, brain and organ failure begins.
Ideally it should be 100 % at all times.
Very important. In hospitals, the saturation level of oxygen in patients is measured by a clip on the finger.
All of the above.✓ Correct answer

Before you start

Do I need to register to start?

Guest access lasts 23 minutes. Free registration lets you continue without limits, save progress and review mistakes in your account.

What language are the questions in?

Questions and answer options retain the language of the original bank. You can change the interface language separately.

Can I use my result as an official document?

No. This is independent practice. A result does not replace an examination, certificate or knowledge check by an authorised organisation.