The most economic fuels are
A.solid fuels
B.liquid fuels
C.gaseous fuels
Category: Chemical Engineering Mcqs
Which is not a consitituent of atomic pile?
A.core
B.Moderator
C.Control rods
D.Ionization chamber
The disintegration constant of a radioactive element is 2.31 x 10-10 years. Its half-life period is about
A.1.15 x 10-10 years
B.3 x 109 years
C.4 x 109 years
D.4 x 10-9 years
A non-dimensional number generally associated with natural convection heat transfer is
A.Peclet number
B.Nusselt number
C.Prandtl number
D.Grashof number
E.Weber number
Incomplete combustion of hydrocarbon fuels
A.yields carbon dioxide and water vapour
B.takes place due to too much air
C.takes place due to an insufficient amount of air
D.yields hydrogen and carbon dioxide
Ash forming consitituents present in crude petroleum are
A.sulphur compounds
B.nitrogen compounds
C.oxygen compounds
D.organometallic compounds
The fuel used in nuclear reactor is
A.graphite
B.heavy water
C.cadmium
D.uranium
Tritium is Beta emitter. Its decay product is
A.hydrogen ion
B.deuterium
C.helium
D.lithium
Iron-constantan thermocouple is used to measure the temperature in the range of
A.?20? to 1600?C
B.300? to 1100?C
C.0? to 600?C
D.600? to 1600?C
