Process Control and Instrumentation
The Laplace transform of exp(at), where a > 0, is defined only for the Laplace parameter, s > a since

The function exp(at) is piece-wise continuous only for s > a
The Laplace transform of integral of exp(at) has finite values only for s > a
The Laplace transform integral of exp(at) has initial values only for s > a
The function is exponential

ANSWER DOWNLOAD EXAMIANS APP

Process Control and Instrumentation
Temperature control of an exothermic chemical reaction taking place in a CSTR is done with the help of cooling water flowing in a jacket around the reactor. The types of valve and controller action to be recommended are

Air to open valve with the controller indirect acting
Air to close valve with the controller direct acting
Air to open valve with the controller direct acting
Air to close valve with the controller indirect acting

ANSWER DOWNLOAD EXAMIANS APP