Process Control and Instrumentation Use of I-control along with P-control facilitates Reduction of stability time Reduction of offset None of these Elimination of offset Reduction of stability time Reduction of offset None of these Elimination of offset ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Thermal well made of __________ gives the fastest speed of response, while measuring temperature by thermocouples. Inconel Steel Vycor (a glass) Nichrome Inconel Steel Vycor (a glass) Nichrome ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Working principle of bimetallic thermometers is difference in linear co-efficient of thermal expansion of two strips of different metals welded together. Which of the following has the maximum thermal co-efficient of linear expansion? Chromel Nickel Invar Brass Chromel Nickel Invar Brass ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The time constant of a unity gain, first order plus time delay process is 5 min. If the phase lag at a frequency of 0.2 rad/min is 60°, then the dead time (in minutes) is π/3 5π/12 π/6 π/12 π/3 5π/12 π/6 π/12 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Resistance of a gas in a vessel is given by (where, P = pressure, V = volume of the vessel, n = no. of moles of the gas, R = gas constant) nRT/V p/nRT nRT/P V/nRT nRT/V p/nRT nRT/P V/nRT ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The unit step response of the transfer function 1/(s² + 2s + 3) Has a non-zero slope at the origin Is unstable Has a damped oscillatory characteristics Is overdamped Has a non-zero slope at the origin Is unstable Has a damped oscillatory characteristics Is overdamped ANSWER DOWNLOAD EXAMIANS APP
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