Process Control and Instrumentation Dead zone is the Maximum change in the variable that does not change the reading of the instrument Same as time constant Same as transportation lag None of these Maximum change in the variable that does not change the reading of the instrument Same as time constant Same as transportation lag None of these ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation All the thermocouples used for temperature measurement use dissimilar metal Bars Wires Beads Strips Bars Wires Beads Strips 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 5π/12 π/12 π/6 π/3 5π/12 π/12 π/6 π/3 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation For increased speed of response of an expansion pressure spring thermometer, the thermometer bulb should have a High thermal conductivity Large area but small mass All of these Small specific heat High thermal conductivity Large area but small mass All of these Small specific heat 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 Beckman thermometer Bimetallic thermometer Mercury thermometer Dilatometer Beckman thermometer Bimetallic thermometer Mercury thermometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The root locus plot of the roots of the characteristics equation of a closed loop system having the open loop transfer function K(s + 1)/2(2s + 1)(3s + 1) will have a definite number of loci for variation of K from 0 to ∞. The number of loci is 3 2 4 1 3 2 4 1 ANSWER DOWNLOAD EXAMIANS APP