Process Control and Instrumentation Which of the following shows maximum dip effect (indicating reverse direction of temperature change)? Bimetallic thermometer Radiation pyrometer Mercury thermometer Thermocouple Bimetallic thermometer Radiation pyrometer Mercury thermometer Thermocouple ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following thermocouples can measure the maximum temperature? Tungsten-molybdenum Iron-constantan Chromel-alumel Platinum-rhodium Tungsten-molybdenum Iron-constantan Chromel-alumel Platinum-rhodium ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Radiation pyrometers as compared to thermocouples Can't measure the temperature of moving objects Has a slower speed of response Can measure higher temperature Is more affected by corrosive atmosphere Can't measure the temperature of moving objects Has a slower speed of response Can measure higher temperature Is more affected by corrosive atmosphere ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Maximum differential pressure in liquid manometer is __________ psi. 20 40 30 50 20 40 30 50 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Out of the following temperature measuring instruments, the measurement accuracy will be minimum for the Mercury in glass thermometer Iron-constantan thermocouple Alcohol filled thermometer Optical pyrometer Mercury in glass thermometer Iron-constantan thermocouple Alcohol filled thermometer Optical pyrometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Find the ultimate gain and frequency for a proportional controller in the case of a process having the transfer function Gp(s) = 1/(4s + 1)(2s + 1)(s + 1). W = 1, Kc = 13 W = √(7/8), Kc = 45/4 W = √(7/6), Kc = 46/3 W = 1/√14, Kc = 45/7√14 W = 1, Kc = 13 W = √(7/8), Kc = 45/4 W = √(7/6), Kc = 46/3 W = 1/√14, Kc = 45/7√14 ANSWER DOWNLOAD EXAMIANS APP
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