A. Are solvent soluble
B. Soften on application of heat
D. None of these
B. None of these
C. Increases the time of carbonisation
D. Produces larger size coke
A. Thiokol
B. Dacron
D. Teflon
B. Vinyl chloride and formaldehyde
C. None of these
D. Adipic acid and methyl amine
A. Neoprene
C. Nitrile-butadiene
D. Polyisoprene
A. Ethyl alcohol
B. Ethylene
D. Neither A. nor B.
A. Hydrogen atoms in the ring
B. Nitrogen atoms in the ring
C. Carbon atoms in the ring
B. Polystyrene
C. Polyurethane
D. Saturated polyester
A. 109-1011
B. 10 to 103
D. 107-109
B. Fuel oil
C. Diesel
D. Gasoline
A. Methane
B. Hydrogen
C. Carbon monoxide
A. Less
B. More
D. Data insufficient; cant be predicted
A. Polyester
C. Polypropylene
D. Nylon 6:6
A. 205
C. 85
D. 165
A. Polysaccharides
B. Polyisoprene
C. Nucleic acids e.g. RNA and DNA
A. None of these
B. Minimise its corrosion
C. Make it look attractive
C. Lower carbon dioxide content
D. Higher carbon monoxide content
A. Fine sizes without the presence of any lump
B. Closed space without any ventilation facility
D. Large heaps with small surface to volume ratio
B. C2H6
C. H2
D. C2H2
A. Increase in temperature (i.e. preheating)
B. Use of pure oxygen for combustion instead of air
C. Increase in gas pressure
A. Polyvinyl acetate
B. Acrylic
D. Viscose rayon
A. Caking coal
B. Coking coal
C. Pulverised coal
A. Tensile strength
C. Melting point
D. Density
B. Either A. or B., depends on other factors
C. Remain same
D. Decreases
A. SBR
C. Bakelite
A. Cross-linked
B. Low density
D. Linear low density
A. Bulk density
C. Porosity
D. Reactivity
A. Epoxy resin
B. PTFE
A. KOH
C. Pyrogallol solution
D. Ammoniacal cuprous chloride
B. Sulphur content
C. Calorific value
D. Difference in gross & net calorific value
A. Polythene
B. Polyvinyl acetate
D. Polypropylene
A. 51600
B. 50800
D. 49200
A. Polymerisation mechanism
B. Resistance to heat
C. Molecular sizes
D. wer: Option B
A. Amber
B. Rosin
C. Copal
A. Adhesives
B. Fibres
D. All A., B. & C.
A. FClC = CF2
B. F3 C-CF3
D. Cl2CH-CH3
A. Coating and adhesive
C. Thermal insulation in refrigerator
D. Automobile cushion
D. Nylon
A. Nitro cellulose
D. Glycerol
A. Non-inflammable
B. Harder
C. Stronger
C. Injection moulding
D. Blow moulding
A. Volatile matter content
B. Inherent moisture content
C. Fusion point of its ash
A. Alumina
B. Platinum
C. Bromine
A. Provides higher thermal efficiency & flame temperature
B. Facilitates combustion with lower excess air
C. Provides better control of furnace temperature
A. Tacky
B. Plastic
C. Soft
B. Strength
C. Freezing point
D. Percent elongation
A. Glycol soaking
C. Dyeing/colouring
D. Improving the stretchability
A. Same as Dacron
B. A polyester
B. 0.56
C. 0.38
D. 0.81
A. Low viscosity
D. Low melting point
Showing 5301 to 5350 of 8709 mcqs