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

Related Mcqs:

1. It is observed that the total pressure exerted by air on the man of average size is around 14.7 lb wt. per square inch. But the man feels quite comfortable,. It is because of__________?

   A. An equal and opposite pressure acts from inside
   B. of the height of a man
   C. of gravity
   D. Earth pulls the man upward
   E. None of these

   Submitted by: Zeeshan Rafique Soomro

2. A six feet tall lady wants to see her full image in a plane mirror . The minimum length of the mirror will be ?

   A. 6 feet
   B. 12 feet
   C. 4 feet
   D. 3 feet
   E. None of these

3. What percentage of earth’s water supply is fresh water___________?

   A. 3%
   B. 5%
   C. 21%
   D. None of these

   Submitted by: Rida

4. A fresh egg when placed in salt water will __________ ?

   A. sink and go to the bottom
   B. sink but will not go to the bottom
   C. Float
   D. Burst

   Submitted by: Abid Hussain

5. 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

6. 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

7. The Quantity of matter present in an object is its ________?

   A. Density
   B. Weight
   C. Mass
   D. None of these

   Submitted by: Rafi Umar

8. Which one of the following is not vector quantity _______?

   A. Acceleration
   B. Displacement
   C. Speed
   D. Force

   Submitted by: Rashid Mehmood

9. The unit to measure the quantity of Ozone in atmosphere is ?

   A. Dobson
   B. Cloning
   C. Dalton
   D. Colomb

   Submitted by: Mansoor Ahmed Suhag

10. Golden rice has the highest quantity of______?

    A. Vitamin A
    B. Vitamin B
    C. Vitamin C
    D. Vitamin K

    Submitted by: Shuaib Uddin