A hollow sphere with uniform interior temperature and a small hole behaves very nearly as a
A.Grey body
B.White body
C.Opaque body
D.Transparent body
E.Black body
Category: Chemical Engineering Mcqs
The nucleus of an atom consists of
A.protons only
B.protons and electrons
C.protons and neutrons
D.protons neutrons and electrons
One of the products formed by combustion of the hydrocarbon fuels is water which is in the
A.solid state
B.liquid state
C.gaseous state
D.solid liquid and gaseous states
When the declining-balance method is used
A.the annual depreciation cost is a fixed percentage of the property value at the beginning of the particular year
B.the annual cost for depreciation is same each year
C.the value of the asset can decrease to zero at the end of the service life
D.the value of the asset decreases linearly with tiime
The desirable reactions in the catalytic reforming of naphtha are
A.slightly exothermic
B.endothermic
C.autocatalytic
D.highly exothermic
If q is interpreted to be the fraction of the feed that is liquid then the slope of the feed line in distillation operation is
A.?(1-q)/q
B.?q/(1-q)
C.?q
D.?q/(q-1)
Which of the following temperature measuring devices is widely used to measure the temperature in furnaces?
A.Resistance thermometer
B.Radiation pyrometer
C.Iron-constantan thermocouple
D.Bimetallic thermometer
The steady-state temperature reached by a small amount of liquid evaporating into a large amount of unsaturated vapour-gas mixture is called
A.dry-bulb temperature
B.dew point
C.wet-bulb temperature
D.bubble point
Oleum is
A.a misture of conc. H2SO4 and oil
B.sulphuric acid which gives fumes of sulphur dioxide
C.sulphuric acid saturated with sulphur trioxide
D.a mixture of sulphuric and nitric acid.
For most industrial electrostatic precipitator installations particledrift velocity which is used to calculate the precipitation efficiency varies from
A.3 to 8 ft/s
B.0.1 to 1 ft/s
C.60 to 80 ft/s
D.15 to 20 ft/s
