Process Control and Instrumentation The level of a liquid under pressure can be determined using Air-trap system Bubbler system Differential pressure manometer Diaphragm box system Air-trap system Bubbler system Differential pressure manometer Diaphragm box system ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Bimetal strips are not used in Thermostats Relays for opening & closing of electrical circuits Thermocouples Bimetallic thermometers Thermostats Relays for opening & closing of electrical circuits Thermocouples Bimetallic thermometers ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation __________ is undesirable in thermocouples used in industries, Linear relation of emf to temperature Oxidation resistance Non-linear relation of emf to temperature Corrosion resistance Linear relation of emf to temperature Oxidation resistance Non-linear relation of emf to temperature Corrosion resistance ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Very low pressure is expressed in microns(μ), which is equal to __________ mm of Hg coloumn (absolute) at 0°C. 0.001 0.1 0.01 0.0001 0.001 0.1 0.01 0.0001 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The time constant of a first order process with resistance R and capacitance C is RC R + C R - C 1/RC RC R + C R - C 1/RC ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Phase lag of the frequency response of a second order system to a sinusoidal forcing function Approaches 180° asymptotically Is 120° Is 90° at the most Is 30° Approaches 180° asymptotically Is 120° Is 90° at the most Is 30° ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS