Process Control and Instrumentation Which of the following filled system expansion thermometers has the lowest positive temperature measurement capability? Fused metal (Na or K) in steel thermometer Nitrogen in steel thermometer Alcohol in glass thermometer Mercury in glass thermometer Fused metal (Na or K) in steel thermometer Nitrogen in steel thermometer Alcohol in glass thermometer Mercury in glass thermometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Turbine flow meters are suitable for Cryogenic flow measurements Aerospace and in air borne applications Both B and C Very limited flow ranges Cryogenic flow measurements Aerospace and in air borne applications Both B and C Very limited flow ranges ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is not a variable area flow meter? Piston type meter Orifice and tapered plug meter Magnetic flow meter Rotameter Piston type meter Orifice and tapered plug meter Magnetic flow meter Rotameter ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Suppose that the gain, time constant and dead time of a process with the following transfer function:Gc(s) = 10 exp( - 0.1s)/(0.5s + 1) are known with a possible error of ± 20% of their values. The largest permissible gain Kc of a proportional controller needs to be calculated below taking the values of process gain, time constant and dead time as 8, 0.6, 0.12 8, 0.6, 0.08 12, 0.6, 0.12 12, 0.4, 0.08 8, 0.6, 0.12 8, 0.6, 0.08 12, 0.6, 0.12 12, 0.4, 0.08 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Thermal wells used in temperature measurements should have Polished surface Low emissivity Very thick walls High transmissivity of radiation Polished surface Low emissivity Very thick walls High transmissivity of radiation ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Pick out the most suitable instrument for measuring temperature in the range of-40 to 425°C. Mercury thermometer Bimetallic thermometer None of these Radiation pyrometer Mercury thermometer Bimetallic thermometer None of these Radiation pyrometer ANSWER DOWNLOAD EXAMIANS APP
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