Multiple Choice Questions

Multiple Choice Questions

1. The particle size of ZnO material is 30 nm. Based on the dimension it is classified as

a) Bulk material

b) Nanomaterial

c) Soft material

d) Magnetic material

Answer: b)

2. Which one of the following is the natural nanomaterial.

a) Peacock feather

b) Peacock beak

c) Grain of sand

d) Skin of the Whale

Answer: a)

3. The blue print for making ultra durable synthetic material is mimicked from

a) Lotus leaf

b) Morpho butterfly

c) Parrot fish

d) Peacock feather

Answer: c)

4. The method of making nanomaterial by assembling the atoms is called

a) Top down approach

b) Bottom up approach

c) Cross down approach

d) Diagonal approach

Answer: b)

5. “Sky wax” is an application of nano product in the field of

a) Medicine

b) Textile

c) Sports

d) Automotive industry

Answer: c)

6. The materials used in Robotics are

a) Aluminium and silver

b) Silver and gold

c) Copper and gold

d) Steel and aluminum

Answer: d)

7. The alloys used for muscle wires in Robots are

a) Shape memory alloys

b) Gold copper alloys

c) Gold silver alloys

d) Two dimensional alloys

Answer: a)

8. The technology used for stopping the brain from processing pain is

a) Precision medicine

b) Wireless brain sensor

c) Virtual reality

d) Radiology

Answer: c)

9. The particle which gives mass to protons and neutrons are

a) Higgs particle

b) Einstein particle

c) Nanoparticle

d) Bulk particle

Answer: a)

10. The gravitational waves were theoretically proposed by

a) Conrad Rontgen

b) Marie Curie

c) Albert Einstein

d) Edward Purcell

Answer: c)

Answers

1) b 2) a 3) c 4) b 5) c 6) d 7) a 8) c 9) a 10) c