In the diving apparatus, helium is used along with oxygen, because it is ____________________?
Correct answer: B. Not soluble in blood at high pressure
- A. Easily available
- B. Not soluble in blood at high pressure
- C. Lighter than nitrogen
- D. Completely miscible with oxygen
Explanation
Helium is chemically inert and much less soluble in blood than nitrogen at high pressure, reducing the risk of decompression sickness in divers. Its lower density also reduces breathing resistance, but that is not the main reason stated here.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Chemical Process Principles
2,710 free Chemical Process Principles MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Chemical Process Principles questions
A fire tube boiler is limited to a maximum steam pressure of about ______________ kg/cm2 ?
The underground well of a bio gas plant is called the________________?
Hot dipping process is used for coating a low melting point metal (e.g. Pb, Sn, Zn) on iron, steel & copper having relatively higher melting points. Which of the following is not a hot dipping process ?
Air/fuel ratio by weight for combustion of methane with theoretical quantity of air will be about ____________________?
Potable water means the water used for____________________?
Cold working of a material results in increase in hardness, which is termed as the ______________ hardening ?