Process Control and Instrumentation Specific conductance is defined as the reciprocal of resistance in ohms of 1c.c. of liquid at a specified temperature. Its value for distilled water is about __________ micro mho/cm³. 100 1 10 50 100 1 10 50 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following instruments is not used for measuring sub-zero (<0°) temperatures? Radiation pyrometer Platinum resistance thermometer Mercury in glass thermometer Vapor pressure thermometer Radiation pyrometer Platinum resistance thermometer Mercury in glass thermometer Vapor pressure thermometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is not suitable for measuring the temperature of a red hot object in the range of 800 - 1600°C? Optical pyrometer Radiation pyrometer Thermocouples Photoelectric pyrometer Optical pyrometer Radiation pyrometer Thermocouples Photoelectric pyrometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A proportional controller with a gain of Kc is used to control a first order process. The offset will increase, if Kc is reduced Derivative control action is introduced Kc is increased Integral control action is introduced Kc is reduced Derivative control action is introduced Kc is increased Integral control action is introduced ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is not classified as a thermo electric pyrometer Thermocouple Radiation pyrometer Optical pyrometer (disappearing filament type) Resistance thermometer Thermocouple Radiation pyrometer Optical pyrometer (disappearing filament type) Resistance thermometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation To increase the speed of response of a pressure spring liquid or gas expansion thermometer, the clearance space between the thermometer bulb and the thermal well should not be filled with Mercury Oil A metal powder or graphite Air Mercury Oil A metal powder or graphite Air ANSWER DOWNLOAD EXAMIANS APP
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