Process Control and Instrumentation Dilute wine was used as a thermometric liquid initially to develop temperature scale. First emperical temperature scale developed was the __________ scale. Kelvin Reaumer Fahrenheit Centigrade Kelvin Reaumer Fahrenheit Centigrade ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following temperature measuring instruments need not touch the object whose temperature is being measured? Radiation/infrared pyrometer Thermo electric pyrometer Filled system thermometer Mercury in glass thermometer Radiation/infrared pyrometer Thermo electric pyrometer Filled system thermometer Mercury in glass thermometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Phase lag of the frequency response of a second order system to a sinusoidal forcing function Is 120° Is 90° at the most Approaches 180° asymptotically Is 30° Is 120° Is 90° at the most Approaches 180° asymptotically Is 30° ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The level of a liquid under pressure can be determined using Bubbler system Differential pressure manometer Diaphragm box system Air-trap system Bubbler system Differential pressure manometer Diaphragm box system Air-trap system ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The frequency at which maximum amplitude ratio is attained is called the __________ frequency. Cross-over Corner Natural Resonant Cross-over Corner Natural Resonant ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation On-off controllers are normally used for Flow rate changes None of these Temperature changes Low loads Flow rate changes None of these Temperature changes Low loads ANSWER DOWNLOAD EXAMIANS APP