General Science Quiz for SSC and Railway Exams - Questions and Answers

1. In the capillary blood vessels, an exchange of gases takes place with cells. Which one of the following is   the correct gas exchange?

A.  Oxygen leaves the capillary to the cell, and carbon dioxide enters the capillary.

B.  Oxygen leaves the capillary to the cell, and nitrogen enters the capillary.

C.  Carbon dioxide leaves the capillary to the cell, and oxygen enters the capillary.

D.  Nitrogen leaves the capillary to the cell, and carbon dioxide enters the capillary. 

  

2.  A pulse is caused by
A  changes in blood pressure in an artery

B  red blood cells colliding with each other in the arteries

C  the valves in an artery opening and closing

D  oxygen entering the blood in the lungs

3. Which one of the following carries blood away from the heart ?
A.  Vena Cava

B.  Aorta

C.  Capillary

D.  Pulmonary vein

4. How many blood vessels leave the heart?
A.  2

B.  3

C.  1

D.  4

5. What does airbag, used for safety of car driver, contain? 
A.    Sodium bicarbonate
B.    Sodium azide

C.    Sodium nitrite

D.    Sodium peroxide

6. The working principle of a washing machine is ______:
A.  Centrifugation

B.  Reverse osmosis

C.  Dialysis

D.  Diffusion

7. In human body, which one of the following hormones regulates blood calcium and phosphate ? 
A  Glucagon

B  Growth hormone

C  Parathyroid hormone

D  Thyroxine

8. The weight of an object will be minimum when it is placed at 
A. The North Pole

B. The South Pole

C. The Equator

D. The centre of the Earth

9. Consider the following statements: 

1. Hepatitis B is several times more infectious than HIV / AIDS.

2. Hepatitis B can cause liver cancer.

-Which of the statement given above is/are correct? Correct ?
A.1 only

B. 2 only

C. Both 1 and 2

D. Neither 1 nor 2

10. Consider the following: 

1. Photosynthesis 

2. Respiration 

3. Decay of organic matter 

4. Volcanic action

Which of the above add carbon dioxide to the carbon cycle on Earth?  Incorrect ?
A. 1 and 4 only

B. 2 and 3 only

C. 2, 3 and 4 only

D. 1, 2, 3 and 4

Answer will be provided soon....!!!!