Process Control and Instrumentation The level of a liquid under pressure can be determined using Bubbler system Air-trap system Diaphragm box system Differential pressure manometer Bubbler system Air-trap system Diaphragm box system Differential pressure manometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Dead zone is the Same as time constant Maximum change in the variable that does not change the reading of the instrument Same as transportation lag None of these Same as time constant Maximum change in the variable that does not change the reading of the instrument Same as transportation lag None of these ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Positioning controllers are used for Temperature changes Low loads High loads Flow rate changes Temperature changes Low loads High loads Flow rate changes 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 D³ D⁴ D² D D³ D⁴ D² D ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A first order system with unity gain and time constant τ is subjected to a sinusoidal input of frequency w = 1/τ. The amplitude ratio for this system is 1 0.5 0.25 1/√2 1 0.5 0.25 1/√2 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is not the triple point of water? 492°R 32°R 32°F 273°K 492°R 32°R 32°F 273°K ANSWER DOWNLOAD EXAMIANS APP
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