Related Questions

Addition polymerisation takes place either by a free radical mechanism or ionic machanism depending on the reagents used. Free radical polymerisation is catelyzed by __________ , which decompose to give free radicals.
A Organic peroxides
B Sulphuric acid
C Hydroflouric acid
D None of these
Free radicals
A May arise by absorption of radiant energy
B Antioxidants block free radical formation
C May cause peroxidation of lipids within plasma membrane
D Are not a byproduct of metabolism
E Can only form in the presence of oxygen
Free radicals are removed from the cells by the action of
A Superoxide dismutase
B Transferrin
C Glutathione
D Endonuclease
E Vitamin B12
Free radicals are generated
A During inflammation
B By enzymatic metabolism of drugs
C During normal metabolic processes
D By glutathione
E By ceruloplasmin
Free radicals are formed in the body
A By absorption of X-rays
B During metabolism
C By the formation of reactive oxygen species
D By superoxide dismutases
E By vitamin E
Systems that operate to inactivate free radicals are
A Glutathione peroxidase
B Superoxide dismutase
C Vitamin C
D Hydrogen peroxide
E Myeloperoxidase
Most efficient and suitable dust removal equipment for removal of flyash from flue gas in a thermal power plant is the
A Gravity settling chamber
B Cyclone separator
C Electrostatic precipitator
D Bag filter
Which is the most efficient dust removal equipment for removal of sub-micronic dust particles from blast furnace gas?
A Packed scrubber
B Gravity settling chamber
C Electrostatic precipitator
D Hydrocyclone
Losses which occur in rotating electric machines and do not occur in trans formers are
A friction and windage losses
B magnetic losses
C hysteresis and eddy current losses
D copper losses
When a load on the free end of a cantilever beam is increased, failure will occur
A At the free end
B At the fixed end
C In the middle of the beam
D At a distance $$\frac{{2l}}{3}$$ from free end

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