Process Control and Instrumentation Emission spectroscopy is used for Determining water purity NOxdetermination Determination of CO₂ in gases Solids and metal analysis Determining water purity NOxdetermination Determination of CO₂ in gases Solids and metal analysis ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Temperature of molten pig iron (1450°C) and molten slag (1500°C) flowing out of a blast furnace is measured by a/an Optical pyrometer Chromel-alumel thermocouple Radiation pyrometer Either B or C Optical pyrometer Chromel-alumel thermocouple Radiation pyrometer Either B or C ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The time constant of a unity gain, first order plus time delay process is 5 min. If the phase lag at a frequency of 0.2 rad/min is 60°, then the dead time (in minutes) is π/6 5π/12 π/12 π/3 π/6 5π/12 π/12 π/3 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Polarograph is meant for the analysis of Gaseous mixture Isotopes Miscible liquids Solids Gaseous mixture Isotopes Miscible liquids Solids ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Temperature of __________ can not be measured by an optical or radiation pyrometer. Molten slag flowing out of blast furnace Combustion space in boilers Hot blast (air) from stoves Rotary limestone calcination kiln Molten slag flowing out of blast furnace Combustion space in boilers Hot blast (air) from stoves Rotary limestone calcination kiln ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The frequency response of a first order system, has a phase shift with lower and upper bounds given by 0, π/2 -π/2, 0 -π/2, π/2 - ∞, π/2 0, π/2 -π/2, 0 -π/2, π/2 - ∞, π/2 ANSWER DOWNLOAD EXAMIANS APP
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