Process Control and Instrumentation Very low pressure is expressed in microns(μ), which is equal to __________ mm of Hg coloumn (absolute) at 0°C. 0.0001 0.01 0.1 0.001 0.0001 0.01 0.1 0.001 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Nichol's chart deals with R. vs. phase lag of first order Frequency response values of controllers Closed loop values vs. open loop values R. vs. phase lag of second order R. vs. phase lag of first order Frequency response values of controllers Closed loop values vs. open loop values R. vs. phase lag of second order ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The frequency at which maximum amplitude ratio is attained is called the __________ frequency. Natural Corner Resonant Cross-over Natural Corner Resonant Cross-over ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is a desirable characteristic of an instrument? High fidelity High measuring lag High drift Poor reproducibility High fidelity High measuring lag High drift Poor reproducibility ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following instruments is not used for measuring sub-zero (<0°) temperatures? Platinum resistance thermometer Radiation pyrometer Vapor pressure thermometer Mercury in glass thermometer Platinum resistance thermometer Radiation pyrometer Vapor pressure thermometer Mercury in glass thermometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Strain gage uses an electrical conductor wire, which when elastically stretched increases in length and reduces in diameter. Both these dimensional changes result in __________ in the electrical resistance of the wire. No change Decrease Increase Exponential decrease No change Decrease Increase Exponential decrease ANSWER DOWNLOAD EXAMIANS APP
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