Process Control and Instrumentation Mercury thermometer is commonly used for low temperature measruement. The freezing point and boiling point of mercury are respectively __________ °C. - 51 and 439 - 79 and 395 - 10 and 425 - 39 and 350 - 51 and 439 - 79 and 395 - 10 and 425 - 39 and 350 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Continuous measurement of specific gravity of a liquid is done by Both A and C Contact-type electric indicators Displacement meter Hydrometer Both A and C Contact-type electric indicators Displacement meter Hydrometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation All the thermocouples used for temperature measurement use dissimilar metal Strips Beads Bars Wires Strips Beads Bars Wires ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Liquid flow rate in an open channel can not be measured by a/an Cipolletti weir Orifice meter Rectangular weir V-notch Cipolletti weir Orifice meter Rectangular weir V-notch ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation An emf of the order of mV is generated when two solutions of different hydrogen ion concentration are separated by a thin glass wall. This is the working principle of a Polarograph Polarimeter PH meter Chromatograph Polarograph Polarimeter PH meter Chromatograph 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 1/√2 0.25 1 0.5 1/√2 0.25 ANSWER DOWNLOAD EXAMIANS APP
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