Top 150+ Solved Fundamentals of NanoScience MCQ Questions Answer

From 121 to 135 of 146

Q. The graphite is                    anisotropic.

a. highly

b. lightly

c. not

d. very less

  • a. highly

Q. In oxygen containing atmospheres, the graphite readily converted into                    

a. carbon-monoxide

b. carbondioxide

c. carbonmonosulphide

d. carbon-disulphide

  • b. carbondioxide

Q. Graphite is used in the arc lamp electrode.

a. true

b. false

  • a. true

Q. The graphite undergoes                  corrosion in stainless steel.

a. microbial corrosion

b. crevice corrosion

c. pitting corrosion

d. high temperature corrosion

  • c. pitting corrosion

Q. The graphite is                      

a. paramagnetic

b. diamagnetic

c. ferromagnetic

d. ferrimagnetic

  • b. diamagnetic

Q. Graphite is also called as                  

a. white lead

b. black lead

c. white coal

d. black coal

  • b. black lead

Q. Natural graphite is mostly used in

a. refrigerators

b. laboratories

c. catalyst

d. fuel

  • a. refrigerators

Q. The nano particles from iron and palladium are used to produce                  

a. magnets

b. magnetic lens

c. magneto meters

d. magnetic storage devices

  • d. magnetic storage devices

Q.                        is the field in which the nano particles are used with silica coated iron oxide iron oxide.

a. magnetic applications

b. electronics

c. medical diagnosis

d. structural and mechanical materials

  • c. medical diagnosis

Q. Coating the nano crystals with the ceramics is carried that leads to                  

a. corrosion

b. corrosion resistant

c. wear and tear

d. soft

  • b. corrosion resistant

Q. The                      to the ceramics are superior coatings.

a. nano particles

b. nano powder

c. nano crystals coating

d. nano gel

  • c. nano crystals coating
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