Related Questions

An autothermal reactor is
A Most suitable for a second order reaction
B Most suitable for a reversible reaction
C Completely self-supporting in its thermal energy requirements
D Isothermal in nature
In case of a __________ reactor, the composition in the reactor and at the exit of the reactor is the same.
A Semi-batch
B Tubular
C Batch
D Back-mix
For nearly isothermal operation involving large reaction time in a liquid-phase reaction, the most suitable reactor is a __________ reactor.
A Stirred tank
B Tubular flow
C Batch
D Fixed bed
Pressure drop in a fluidised bed reactor is __________ that in a similar packed bed reactor.
A Less than
B More than
C Same as
D None of these
A nuclear reactor is said to be critical when the neutron population in the reactor core is
A Rapidly increasing leading to the point of explosion
B Decreasing from the specified value
C Reduced to zero
D Constant
The breeding gain in case of thermal breeder reactor as compared to fast breeder reactor is
A Same
B Lower
C Higher
D Unity
The energy produced by a thermal reactor of same size as a breeder reactor is
A Almost same
B Slightly more
C Slightly less
D Much less
A stirred tank reactor compared to tubular-flow reactor provides
A More uniform operating conditions
B Permits operation at the optimum temperature for a long reaction time
C Higher overall selectivity for a first order consecutive reaction
D All of the above
An exothermic reaction takes place in an adiabatic reactor. The product temperature __________ reactor feed temperature.
A Is always equal to
B Is always greater than
C Is always less than
D May be greater or less than
The size of plug flow reactor (PFR) for all positive reaction orders and for any given duty, is __________ that of mixed reactor.
A Greater than
B Equal to
C Smaller than
D Unpredictable from the data

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