Process Control and Instrumentation Photoelectric pyrometers are suitable in the temperature range of __________ °C. 800-2500 800-1600 400-1600 400-1000 800-2500 800-1600 400-1600 400-1000 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 Small specific heat All of these High thermal conductivity Large area but small mass Small specific heat All of these ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Suppose that the gain, time constant and dead time of a process with the following transfer function:Gc(s) = 10 exp( - 0.1s)/(0.5s + 1) are known with a possible error of ± 20% of their values. The largest permissible gain Kc of a proportional controller needs to be calculated below taking the values of process gain, time constant and dead time as 12, 0.4, 0.08 8, 0.6, 0.08 12, 0.6, 0.12 8, 0.6, 0.12 12, 0.4, 0.08 8, 0.6, 0.08 12, 0.6, 0.12 8, 0.6, 0.12 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Use of I-control along with P-control facilitates Elimination of offset Reduction of offset Reduction of stability time None of these Elimination of offset Reduction of offset Reduction of stability time None of these ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following thermocouples can measure the maximum temperature? Chromel-alumel Tungsten-molybdenum Platinum-rhodium Iron-constantan Chromel-alumel Tungsten-molybdenum Platinum-rhodium Iron-constantan ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Thermistor, which has high temperature co-efficient of resistivity, is used as the sensing element in resistance thermometer. It is a/an Solid semi-conductor Conductor Liquid semi-conductor Insulator Solid semi-conductor Conductor Liquid semi-conductor Insulator ANSWER DOWNLOAD EXAMIANS APP
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