Process Control and Instrumentation A control system has the following transfer function F(s) = (s - 1)(s + 1)/s(s - 2)(s + 4)The initial value of the corresponding time function is 43838 -1 1 44020 43838 -1 1 44020 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation With increase in temperature, the electrical conductivity of the platinum used in the resistance thermometer Increases Remains constant Decreases Increases exponentially Increases Remains constant Decreases Increases exponentially ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Use of I-control along with P-control facilitates None of these Elimination of offset Reduction of stability time Reduction of offset None of these Elimination of offset Reduction of stability time Reduction of offset 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 direct acting Air to close valve with the controller indirect acting 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 Air to open valve with the controller indirect acting Air to close valve with the controller direct acting ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The deflection in diaphragm (which is used as pressure sensor in pneumatic and electronic instruments) is dependent on the metal thickness, its diameter (d) and shape & number of corrugations. Its deflection is proportional to D D³ D⁴ D² D D³ D⁴ D² ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Bimetal strips are not used in Thermocouples Thermostats Bimetallic thermometers Relays for opening & closing of electrical circuits Thermocouples Thermostats Bimetallic thermometers Relays for opening & closing of electrical circuits ANSWER DOWNLOAD EXAMIANS APP
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