1. Nanomaterials can be primarily used in …………of Aviation Industry.
a) three areas
b) two areas
c)four areas
2. The design requirements of the materials are:light weight, ……easy reparability, reusability, less maintenance and durability.
a) high strength, low toughness, corrosion resistance,
b) low strength, high toughness, corrosion resistance,
c)high strength, high toughness, corrosion resistance,
3. The modern aviation design requirements like faster, miniature, highly maneuverable, self healing, intelligence guided, smart, eco-friendly, light weight and stealth systems warrant for materials with …………………...
a) extraordinary mechanical and multifunctional properties.
b) extraordinary electrical and multifunctional properties.
c) usual mechanical and multifunctional properties.
4. Properties of Carbon Nanotube (CNT) based Polymer Composites are their wide range of ………………………………….
a) Young’s Modulus, High Specific Strength,Crash Performance and Thermal Resistance
b) Young’s Modulus, High Specific Strength,Crash Resistance and Thermal Performance
c) Young’s Modulaion, High Specific Strength,Crash Resistance and Thermal Performance
5. There are some ………used for airframe structure such as CNT/Epoxy, CNT/Polyimide, CNT/PP.
a) CNT based polymers
b) CNT based composites
c) CNT based polyimide
6. Properties of …….are Barrier Properties, Thermal and Flame Retardent.
a) Nanoclays reinforced Polymer Composites
b) Nanoseals reinforced Polymer Composites
c) Nanoglues reinforced Polymer Composites
7. The extraordinary ……………of Metal Nanoparticles incorporated Composites make them the probablefuturistic solution for making the structure which are resistant to lightening strikes.
a) electrostatic discharge and electromagnetic interference (EMI) shielding properties
b) electric discharge and electromagnetic interference (EMI) shielding functions
c) electrostatic discharge and magnetic interference (EMI) shielding properties
8. The coatings are generally used for …………………………………..
a) protectingthe structures and coatings of the aircraft fromdangerous environments
b) protectingthe structures and surfaces of the aircraft fromharsh environments
c) protectingthe housings and surfaces of the aircraft fromharsh environments
9. The stringent requirementslike ………… have sparked an increased demand formore reliable high performance coatings.
a) resistance to high temperatures, harsh climates, corrosion, abrasion and maintenance of engineparts
b) resistance to low temperatures, bad climate conditions, corrosion, abrasion and wear of engineparts
c) resistance to extreme temperatures, extremeclimates, corrosion, abrasion and wear of engineparts
10. Some ………………mayallow higher engine-operating temperatures and therefore improvedperformance in the future.
a) nanomaterials coatings with improved high-temperature properties
b) nanomaterials coatings with improved low – temperature properties
c) nanomaterials housing with unusual high – temperature properties
11. SiC Nanoparticles in SiC-particle-reinforced alumina Yittria stablized nanozirconia can facilitate ………………………………….
a) crack sealing, resulting in improved low-temperature,strength and creep resistance as compared to monolithic ceramics.
b) crack healing, resulting in improved high-temperature,strength and creep resistance as compared to monolithic ceramics.
c) crack healing, resulting in improved high-temperature,toughness and corrosion resistance as compared to monolithic ceramics.
11. TiN nanocrystallites embedded in amorphous Si3N4 are used for…….
a) wear resistantcoatings
b) wear resistanthousings
c)wear resistantsealings
12. The nanocomposite coatings made of ………, TiN are used for low friction andwear resistant applications of aircraft.
a) crystal Carbide, Diamond and metal dichalcogenide
b) crystalline Carbide, Diamond like Carbide and metal dichalcogenide
c)crystalline Carbide, Diamond like Carbide and dichalcogenide
13. Nanotube and nanoparticles (Nanographite, nano) aluminium containing ………, EMIshielding and low friction applications of aircraft surfaces.
a) polymer coating are used for electrical discharge
b) polymer coating are used for electronic discharge
c)polymer coating are used for electrostatic discharge
14. CNTs have unique set of properties, including ………, which make them of great interest for futurenanoelectronics.
a) ballistic electron transport anda huge current carrying volume
b) ballistic electron movement anda huge current carrying capacity
c) ballistic electron transport anda huge current carrying capacity
15. …………………… offer the possibility of developing a standard fuel management unit which controls the fuel control in aero-engines.
a) MEMS (Macro Electro Mechanical Systems) and NEMS (Nano ElectroMovement Systems)
b) MEMS (Micro Electrical Movement Systems) and NEMS (Nanotechnological ElectroMechanical Systems)
c)MEMS (Micro Electro Mechanical Systems) and NEMS (Nano ElectroMechanical Systems)