Process Control and Instrumentation The transfer function of a pure dead time system with dead time τd is 1/(τds + 1) E-τds Τds + 1 Eτds 1/(τds + 1) E-τds Τds + 1 Eτds ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Minute depression of freezing point of a liquid solvent on addition of a solid solute can be best measured by a Dilatometer Mercury thermometer Bimetallic thermometer Beckman thermometer Dilatometer Mercury thermometer Bimetallic thermometer Beckman thermometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is not a differential pressure flow meter? Flow nozzle Rotameter Venturimeter Orificemeter Flow nozzle Rotameter Venturimeter Orificemeter ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following thermocouples has the widest temperature measurement range? Copper-constantan Platinum-platinum/rhodium Chromel-alumel Iron-constantan Copper-constantan Platinum-platinum/rhodium Chromel-alumel Iron-constantan ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The offset introduced by proportional controller with gain Kc in response of first order system can be reduced by Introducing integral control Reducing value of Kc Introducing derivative control None of these Introducing integral control Reducing value of Kc Introducing derivative control None of these ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A photo electric device in which the resistance of the metal is directly proportional to the light striking on it, is known as photo-conductive cell. Photoelectric transducers are used for the measurement of those parameters, which can be used to produce variation in Flux density Voltage Light intensity Current Flux density Voltage Light intensity Current ANSWER DOWNLOAD EXAMIANS APP