RRB NTPC EXAM Study Notes General Awareness Part 5 #RRB #NTPC

1. What do calories measure?

A. Weight B. Movement C. Temperature D. Heat

ANS:D. Heat

2. The clear sky looks blue because of

A. Dispersion of light B. Diffraction of light C. Reflection of light D. Refraction of light

ANS:B. Diffraction of light

3. The hardest substance known is

A. Tungsten B. Steel C. Diamond D. Platinum

ANS:C. Diamond

4. Food can be cooked quicker in a pressure cooker because

A. Steam remains within the cooker. B. No heat is lost.

C. High pressures steam has high temperature. D. It is made of metal.

ANS:C. High pressure steam has high temperature.

5. The acid used in a car battery is

A. Nitric acid B. Sulphuric Acid C. Hydrochloric Acid D. Carbonic Acid

ANS:B. Sulphuric Acid

6. Friction can be reduced by changing over from

A. Rolling to Sliding B. Sliding to Rolling C. Dynamic to Static

D. Potential energy to Kinetic energy

ANS:B. Sliding to Rolling

7. In summer, sometimes the bicycle tube bursts because inside the tube

A. Volume of the air decreases. B. Weight of the air increases.

C. Pressure of the air decreases. D. Pressure of the air increases.

ANS:D. Pressure of the air increases.

8. Which is the largest gland in the human body?

A. Gastric B. Liver C. Pancreas

D. Salivary Click for answer

ANS:B. Liver

9. Which vitamin is produced under the skin in the early morning sunlight ?

A. Vitamin A B. Vitamin B C. Vitamin C D. Vitamin D Click for answer

ANS:D. Vitamin D

10. Deficiency of which vitamin causes ‘ night blindness’ in children ?

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

ANS:A. Vitamin A