Nanotechnology : General Science MCQ Practice Questions & Answers (Marathi)

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1.

The diameter of human hair is

A

75m

B

75000

C

$7.5 \times 10^{-5}$

D

$7.5 \times 10^{-9}$

General ScienceEasyNanotechnology

2.

The size of a quantum dot is

A

5m

B

$5 \times 10^{-9}$

C

$5 \times 10^{-10}$

D

$5 \times 10^{9}$

General ScienceEasyNanotechnology

3.

Nano technology is also referred as

A

carbon engineering

B

atomic engineering

C

small technology

D

microphysics

General ScienceEasyNanotechnology

4.

Optical tweezers

A

are used to remove facial hair with miniaturized laser beams

B

use light to manipulate particles as small as a single atom

C

are a nanotechnology based tool for stamp collections

D

does not exist

General ScienceEasyNanotechnology

5.

Which one of the following statement is not correct?

A

Silicon at the nano scale is insulator

B

Gold at the nano scale is red

C

Aluminum at the nano scale is highly combustible

D

Copper at the nano scale is transparent

General ScienceEasyNanotechnology

6.

Which of these historical works of art contain nono technology

A

Lycusgus cup

B

Medieval stained glass windows in churches

C

Damascus steel swords

D

All of the above

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7.

What is grapheme

A

a new material made from carbon nanotubes

B

thin flim made from fullerenes

C

a software tool made to measure and graphically represent nano particles

D

a one atom thick sheet of carbon

General ScienceEasyNanotechnology

8.

The tensile strength of a carbon nanotube is………………….times that of steel.

A

25

B

50

C

100

D

200

General ScienceEasyNanotechnology

9.

Who first used the term nano technology and when

A

Rechard Feynman, 1959

B

Nario, Taniguchi, 1974

C

Eric Drexier, 1986

D

Sumio Lijima, 1991

General ScienceEasyNanotechnology

10.

Which one of this condiments is unique due to the nanoscale interactions between its ingredients?

A

Ketchup

B

Mustard

C

Mayonnaise

D

All of the above

General ScienceEasyNanotechnology

11.

There is a plenty of room at the bottom. The statement was given by

A

Richard Feynman

B

Issac Newton

C

Albert Einstein

D

Eric Drexler

General ScienceEasyNanotechnology

12.

The width of carbon nanotube is

A

1nm

B

1.3nm

C

1.55nm

D

2nm

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13.

The size of red and white bold cells is in the range of

A

2 to 5 micro meters

B

5 to 7 micro meters

C

7 to 10 micro meters

D

10 to 15 micro meters

General ScienceEasyNanotechnology

14.

The prefix nano comes from a

A

French word meaning billion

B

Greek word meaning dwarf

C

Spanish word meaning particle

D

Latin word meaning invisible

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15.

The most important property of nano materials is

A

force

B

pressure

C

temperature

D

friction

General ScienceEasyNanotechnology

16.

The diameter of the fly ash particle is

A

5 to 10 mioco meter

B

10 to 20 mioco meter

C

20 to 30 mioco meter

D

30 to 40 mioco meter

General ScienceEasyNanotechnology

17.

The cutoff limit of human eye to see is

A

10nm

B

100 nm

C

1000 nm

D

10000 nm

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18.

Nanorobots (nanobots)

A

do not exist

B

exist in experimental forms in laboratories

C

are ready used in nanomedicine to remove plaque from the walls of arteries

D

will be used by NASA in the next unmanned mission to the space

General ScienceEasyNanotechnology

19.

How many oxygen atoms lined up in a row would fit in a one nonometer space?

A

1

B

7

C

70

D

None. An oxygen atom is bigger than 1nm

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20.

20 micron is

A

$20 \times 10^{-9}$

B

$20 \times 10^{9}$

C

200

D

20000

Nanotechnology in General Science : Practice MCQ Questions & Answers with Explanations

Nanotechnology in General Science : Practice MCQ Questions & Answers with Explanations