The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is ________ ?

Related Mcqs:

1. What is the breathing rate of human being body?

   A. 15-11 minutes
   B. 16-20 minutes
   C. 25-26 minutes
   D. 32-35 minutes

   Submitted by: ★ ɪʟʏᴀsɪʟᴜ ★

2. Which part of the atmosphere are you breathing right now?

   A. Bathysphere
   B. Stratosphere
   C. Troposphere
   D. Lonosphere

   Submitted by: Syed Nizakat Ali Shah

3. ______ are the Breathing center of the body?

   A. Nose
   B. Air
   C. Lungs
   D. None of these

   Submitted by: Muhammad Asif Khajjak

4. The salinity of sea water is determined by the amount of common salt (Sodium Chloride) in __________ of sea water.

   A. 1 gram
   B. 10 grams
   C. 1 kg
   D. 10 kg

5. Brass gets discoloured in air because of the presence of which of the following gases in air ________ ?

   A. Carbon dioxide
   B. Oxygen
   C. Nitrogen
   D. Hydrogen sulphide

   Submitted by: Rashid Mehmood

6. What is the third most common gas found in the air we breathe ________ ?

   A. Hydrogen
   B. Neon
   C. Carbondioxide
   D. Argon

   Submitted by: Rashid Mehmood

7. The speed of sound in air at sea level is approximately____________?

   A. 300 meter per second
   B. 320 meter per second
   C. 340 meters per second
   D. 370 meter per second

   Submitted by: ABDUL AZIZ KHAN

8. The Reason for a Swimming Pool to appear Less Deep than the actual depth is__________?

   A. Refraction
   B. Light scattering
   C. Reflection
   D. Interference

   Submitted by: Malik Asghar Hussain

9. Quantity of fresh air required for a man is 1000 cubic feet of air for every____________?

   A. 5 minutes
   B. 10 minutes
   C. 15 minutes
   D. 20 minutes

   Submitted by: WIQAR AHMAD

10. During which process of energy exchange does cold air displace warmer air?

    A. Convection 
    B.  Radiation
    C.  Conduction
    D.  None of these

    Submitted by: Rida