Process Control and Instrumentation Dome temperature of blast furnace stove is most accurately measured by a Radiation pyrometer Platinum resistance thermometer Platinum-platinum/rhodium ther-mocuple Iron-constantan thermocouple Radiation pyrometer Platinum resistance thermometer Platinum-platinum/rhodium ther-mocuple Iron-constantan thermocouple 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 close valve with the controller direct acting Air to close valve with the controller indirect acting Air to open valve with the controller direct acting Air to open valve with the controller indirect acting Air to close valve with the controller direct acting Air to close valve with the controller indirect acting Air to open valve with the controller direct acting Air to open valve with the controller indirect acting ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The __________ of a vapor pressure thermometer is a functioning element. Pointer Bulb None of these Bourdon tube Pointer Bulb None of these Bourdon tube ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Pirani gauge is used for the measurement of High vacuum Liquid level under pressure Very high pressure Liquid level at atmospheric pressure High vacuum Liquid level under pressure Very high pressure Liquid level at atmospheric pressure ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A control system is unstable, if the open loop frequency response exhibits an amplitude ratio exceeding unity at the crossover frequency. This is __________ criterion. Nyquist Routh stability Bode stability None of these Nyquist Routh stability Bode stability None of these ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following controllers has maximum offset? P-I controller P-controller P-D controller P-I-D controller P-I controller P-controller P-D controller P-I-D controller ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS