Process Control and Instrumentation In a shell and tube heat exchanger, the flow rate of heating/cooling fluid is the __________ variable. Manipulated Controlled None of these Load Manipulated Controlled None of these Load ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Thermistor, which has high temperature co-efficient of resistivity, is used as the sensing element in resistance thermometer. It is a/an Conductor Solid semi-conductor Insulator Liquid semi-conductor Conductor Solid semi-conductor Insulator Liquid semi-conductor ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Normal mercury thermometer can be used to measure a temperature of about 300°C. However, its maximum temperature measurement range can be increased upto about 500°C by Filling nitrogen under pressure in the stem Using steel tube in place of glass tube Accounting for the tube expansion Increasing the diameter of the tube Filling nitrogen under pressure in the stem Using steel tube in place of glass tube Accounting for the tube expansion Increasing the diameter of the tube ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The pressure sensing element of elastic type pressure gauge is never made in the form of a Bellow Diaphragm Strip Bourdon tube Bellow Diaphragm Strip Bourdon tube ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Platinum resistance thermometer can be used upto antimony point which is __________ °C, and is the temperature of equilibrium between solid antimony & liquid antimony at normal atmospheric pressure. 961.93 1261.93 1064.43 630.74 961.93 1261.93 1064.43 630.74 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. Routh stability None of these Bode stability Nyquist Routh stability None of these Bode stability Nyquist ANSWER DOWNLOAD EXAMIANS APP