Chapter no. 5 explores the properties and classifications of materials, focusing on composites, thermoplastics, and polymers. It assesses understanding of material properties like red hardness, thermosetting, and sizes of nanoparticles, crucial for learners in materials science.
A are formed into shape under pressure and result in permanently hard product
B do not become hard with the application of heat and pressure and no chemical change occurs
C are flexible and can withstand considerable wear under suitable conditions
D are used as a friction lining for clutches and brakes
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A nylons
B epoxy
C melamine
D Bakelite
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A 0.1nm-100nm
B 10nm-50nm
C 1nm-10nm
D 100nm-1000nm
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A true
B false
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A acrylic
B epoxy
C melamine
D Bakelite
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A thermoplastic plastic
B thermosetting plastic
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A chloroprene
B SBR
C NBR
D silicones
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A silicones
B ceramics
C nylons
D polyester
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A Acrylics
B ABS
C PVC
D Bakelite
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A thermosetting plastic
B thermoplastic plastic
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A PVC
B polystyrene
C elastomers
D nylons
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A are formed into shape under pressure and result in permanently hard product
B do not become hard with the application of heat and pressure and no chemical change occurs
C are flexible and can withstand considerable wear under suitable conditions
D are used as a friction lining for clutches and brakes
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A thermoplastic
B thermosetting
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A cellulose
B enamel
C latex
D melamine
A true
B false
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A Piezoelectric material
B Magneto restrictive material
C Polymer gel
D Shape memory materials
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A Polyamides
B Poly methyl methacrylate
C PVC
D Melamine
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A alcad
B cement concrete
C reinforced concrete
D hybrid composites
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A true
B false
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A powder metallurgy
B nano technology
C polymerization
D none of these
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A correct
B incorrect
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A wood
B FRP
C hybrid composite
D alcad
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A glass-wool
B silicones
C glasses
D PVC
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A Polymethyl methacrylate (PMMA)
B epoxy resins
C ABS
D nylons
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A Phenol formaldehyde
B nylons
C acrylics
D ABS
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A Polyester
B ABS
C acrylics
D PVC
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A thermoplastic plastic
B thermosetting plastic
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A thermoplastic plastic
B thermosetting plastic
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A vulcanized rubber
B Bakelite
C melamine
D PVC
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A SBR
B NBR
C neoprene
D silicones
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A 50 kg/m3
B 24 kg/m3
C 126 kg/m3
D 42 kg/m3
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A PVC
B glasswool
C NBR
D ABS
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A one third
B one fourth
C twice
D thrice
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A cutting tools
B medical implant
C electric parts
D high power magnets
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A injection moulding
B sintering
C hot processing
D rolling
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A NBR
B chloroprene
C epoxy resins
D polyester
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A rubbers
B Bakelite
C PVC
D silicones
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A melamine
B epoxy resins
C Bakelite
D silicones
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A mattress
B adhesives
C electrical connections
D coatings
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A polyester
B PVC
C PMMA
D epoxy resins
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A Flexible couplings
B printing blankets
C rubber roller
D paints
A silicones
B SBR
C glasses
D glasswool
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A glasswool
B glasses
C silicones
D rubber
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A glasswool
B glasses
C silicones
D rubber
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A hybrid composites
B wood
C reinforced concrete
D FRP
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A correct
B incorrect
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A bottom- up approach
B top-down approach
c both A & B
D none of the above
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A gold nano particles
B zinc sulphide
C titanium carbide
D cadmium sulphide
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