Related Questions

The gas used to dilute oxygen for breathing by deep sea divers is:
A Neon
B Argon
C Nitrogen
D Helium
Which of the following gases is mixed with oxygen for breathing by divers in aqua lungs?
A Methane
B Nitrogen
C Helium
D Hydrogen
In deep-sea diving, divers use a mixture of gases consisting of oxygen and
A Hydrogen
B Nitrogen
C Argon
D Helium
Helium is added to the oxygen supply of deep sea divers because it is
A Less poisonous than nitrogen
B Lighter than nitrogen
C Readily miscible with oxygen
D Less soluble in blood than nitrogen at high pressure
The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is
A Argon
B Xenon
C Helium
D Krypton
The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing is
A Neon
B Krypton
C Argon
D Helium
The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing is:
A Neon
B Argon
C Krypton
D Helium
Replace the quotation word with the appropriate word of phrase that best keeps the meaning of the original sentence. Because of the extreme pressure underwater, divers are often 'sluggish'.
A slow
B hurt
C careful
D worried
Oxygen cylinders used for autogenous (cutting/welding) purposes are
A Seamless & made of steel
B Heat treated before use
C Made by sand casting
D Welded steel cylinders
The correct relation between theoretical oxygen demand (TOD), Biochemical oxygen demand (BOD) and Chemical oxygen demand (COD) is given by
A TOD > BOD > COD
B TOD > COD > BOD
C BOD > COD > TOD
D COD > BOD > TOD

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