Engineering Materials and Fibers MCQs
The type of material that expands and contract in response to an applied electric field is ________
(A). Â Smart material
(B). Advanced material
(C). Â Biomaterial
(D). Â Nanomaterial
(E). None of these
Multiple Choice Question Answer: Â a
_____________ is non-linear material
(A). Â Zirconium oxide
(B). Â Lithium niobate
(C). Â Maghemite
(D). Â Magnetite
(E). None of these
Multiple Choice Question Answer: Â b
Not an application of nanomaterials is _________
(A). Â TV and computer monitors
(B). Â Â Sunscreens and fuel cells
(C). Â Magnetic Resonance Imaging (MRI)
(D). Cardiology
(E). None of these
Multiple Choice Question Answer: Â d
We convert the Terephthalic acid into its dimethyl ester by treating it with which of the following?
(A). Â Methyl chloride
(B). Â Hydroxylamine
(C). Â Methyl alcohol
(D). Â Ethylene glycol
(E). None of these
Multiple Choice Question Answer:Â c
Which of the following is the incorrect statement?
(A). Â The Orlon is a trade name of the polyacrylonitrile
(B). Â The Orlon fibers are always quick drying and resistant to the water
(C).  The Orlon fibers are always less resistant to the acid, gases than the nylon
(D). Â The Orlon fibers are always sused to manufacture the window shades
(E). None of these
Multiple Choice Question Answer: Â c
The Polyacrylonitrile is always dissolved in its monomer so it is shaped by the bulk casting.
(A ). Â True
(B). Â False
(E). None of these
Multiple Choice Question Answer: Â b
Nylon-66, PET and PAN all have Tg around how much 0C?
(A). Â 300
(B). 100
(C). 200
(D). Â 500
(E). None of these
Multiple Choice Question Answer:Â b
The Hydrogen bonding is responsible for maintaining the alignment of which of the following?
(A). Â Stereoregular chains of isotactic polypropylene
(B). Â Polyacrylonitrile
(C). Â Polyamides
(D). Â Polyesters
(E). None of these
Multiple Choice Question Answer: Â c
Which of the following is incorrect statement?
(A). Â The Composites are optically opaque materials
(B). Â The Processing of composite material is always difficult
(C). Â The Re-cyclability of the composite material is always very poor
(D). Â The Carbon fiber reinforced composite materials are never used in the space vehicles
(E). None of these
Multiple Choice Question Answer: Â d
The best heat and corrosion resistant material is ___________
(A). Â Metals
(B). Â Semi-conductors
(C). Â Polymers
(D). Â Ceramics
(E). None of these
Multiple Choice Question Answer:Â d
Not an inorganic functional material is ______________
(A). Â Ferroelectric
(B). Magnetic field sensor
(C). Â Reverse micelles
(D). Â Light detectors
(E). None of these
Multiple Choice Question Answer: Â c
Based on the important category, concrete and fibre glass are the examples of which of the following?
(A). Â Composites
(B). Â Polymers
(C). Â Ceramics
(D). Â Semi-conductors
(E). None of these
Multiple Choice Question Answer:Â a
The Nylon-6 is prepared by the ring opening polymerisation of which of the following?
(A). Â Amino caproic acid
(B). Â Terephthalic acid
(C). Â Caprolactum
(D). Â Adipic acid
(E). None of these
Multiple Choice Question Answer: Â b
The third step for the synthesis of nylon-6 is ____________
(A). Â Ring opening polymerisation of caprolactum
(B). Â Conversion of cyclohexanone-oxime into caprolactum
(C). Â Conversion of cyclohexane into cyclohexanone
(D). Â Conversion of cyclohexanone into cyclohexanone-oxime
(E). None of these
Multiple Choice Question Answer: Â b
The cyclohexanone is always converted into the cyclohexanone-oxime by which of the following?
(A). Â Reduction
(B). Â Treatment with hydroxylamine
(C). Â Oxidation
(D). Â Backmann rearrangement
(E). None of these
Multiple Choice Question Answer:Â b
The Nylons are very much polar polymers and they have a good hydrocarbon resistance.
(A). Â True
(B). Â False
(E). None of these
Multiple Choice Question Answer: Â a
We prepare the PET by heating dimethyl terephthalate and ethylene glycol in which of the following?
(A). Â Acidic medium
(B). Â Basic medium
(C). Â Neutral medium
(D). Â Water
(E). None of these
Multiple Choice Question Answer:Â c
The type of bonding that maintains the alignment of chains of the polyester is ____________
(A).  Vander Waal’s force
(B). Â Dipole-dipole attraction
(C). Â Hydrogen bonding
(D). Â Covalent bonding
(E). None of these
Multiple Choice Question Answer: Â b
Which of the following is the tensile strength of the fiber?
(A). Â Low
(B). High
(C). Â Â Very Low
(D). Â Intermediate
(E). None of these
Multiple Choice Question Answer:Â b
Due to what, the Nylon-6, 6 have application in medicine and pharmacy?
(A). Â Toughness
(B). Â Sterilisability
(C). Â Good hydrocarbon resistance
(D). Â Elasticity
(E). None of these
Multiple Choice Question Answer: Â b
Not an application of nylon-6, 6 is ___________
(A). Â Durable hair combs
(B). Â Adhesives
(C). Â Tyre cords
(D). Â Medicine and pharmacy
(E). None of these
Multiple Choice Question Answer:Â b
What is the other name for dacron?
(A). Â Polyethylene terephthalate
(B). Â Polyacrylonitrile
(C). Â Polyamidenitrile
(D). Â Polyethylene caprolactum
(E). None of these
Multiple Choice Question Answer: Â a
(E). None of these
Not an application of dacron is _________
(A). Â Car heater
(B). Â Wide-necked jars for coffee
(C). Â Â Window shades
(D). Â Magnetic recording tapes
(E). None of these
Multiple Choice Question Answer: Â c
What is the Acrylonitrile?
(A). Â Vinyl cyanide
(B). Â Methyl alcohol
(C). Â Methyl chloride
(D). Â Vinyl cyanide
(E). None of these
Multiple Choice Question Answer: Â a
Which of the following is incorrect statement?
(A). Â The polished metal surface always has the dull appearance
(B). Â Properties of the metal are degraded instantly with the temperature
(C). Â Metals have poor corrosion resistant
(D). Â The Metals are very good conductors of the heat and the electricity
(E). None of these
Multiple Choice Question Answer:Â a
Not an aerospace material is __________
(A). Â Plastics
(B). Â Polymers
(C). Â Aluminium alloys
(D). Â Silica
(E). None of these
Multiple Choice Question Answer: Â b
The Nylon-6,6 is made by the condensation polymerisation of hexamethylene diamine and adipic acid in how much molar ratio?
(A). Â 1 : 1
(B). Â 2 : 3
(C). Â 3 : 5
(D). Â Â 1 : 2
(E). None of these
Multiple Choice Question Answer: Â a
The nylon-6, 6 have high crystallinity that imparts which of the following?
(A). Â Low strength
(B). Toughness and elasticity
(C). Â Â Retention to poor mechanical properties
(D). Â Low meting point
(E). None of these
Multiple Choice Question Answer: Â b
Why the Polymers are used in the chemical industry?
(A). Â Low cost
(B). Â Light weight
(C). Â Inert nature
(D). Â Easiness in fabricability
(E). None of these
Multiple Choice Question Answer: Â c
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