Process Control and Instrumentation Which of the following thermocouples has the least temperature measurement range? Platinum-platinum/rhodium Iron-constantan Chromel-alumel Copper-constantan Platinum-platinum/rhodium Iron-constantan Chromel-alumel Copper-constantan 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 Radiation pyrometer Either B or C Chromel-alumel thermocouple Optical pyrometer Radiation pyrometer Either B or C Chromel-alumel thermocouple ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation __________ thermometer can not measure sub-zero (< 0° C) temperature, Bimetallic Vapor pressure Resistance Mercury in glass Bimetallic Vapor pressure Resistance Mercury in glass ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Thermistors are made of Metal oxides Nickel-chromium alloys Iron-copper alloys Ultra pure metals Metal oxides Nickel-chromium alloys Iron-copper alloys Ultra pure metals ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Nitrogen gas constant volume thermometer is suitable for measuring a temperature of __________ °C. > 50 > 100 < 0 0-100 > 50 > 100 < 0 0-100 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 12, 0.4, 0.08 8, 0.6, 0.08 8, 0.6, 0.12 12, 0.6, 0.12 12, 0.4, 0.08 8, 0.6, 0.08 8, 0.6, 0.12 12, 0.6, 0.12 ANSWER DOWNLOAD EXAMIANS APP
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