Process Control and Instrumentation According to Bode stability criterian, a system is unstable, if the open loop frequency response exhibits an amplitude ratio exceeding unity at frequency for which phase lag is 180° 90° 45° 0° 180° 90° 45° 0° ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Nitrogen gas constant volume thermometer is suitable for measuring a temperature of __________ °C. < 0 0-100 > 100 > 50 < 0 0-100 > 100 > 50 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following can measure temperatures in the range of - 20 to 300°C ? Mercury in glass thermometer Resistance thermometer Vapor pressure thermometer None of these Mercury in glass thermometer Resistance thermometer Vapor pressure thermometer None of these ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is not suitable for measuring the temperature of a red hot object in the range of 800 - 1600°C? Radiation pyrometer Thermocouples Optical pyrometer Photoelectric pyrometer Radiation pyrometer Thermocouples Optical pyrometer Photoelectric pyrometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Liquid discharge from a tank or reservoir can not be measured by Weirs Mouthpieces Notches Orificemeters Weirs Mouthpieces Notches Orificemeters 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 Chromel-alumel thermocouple Radiation pyrometer Optical pyrometer Either B or C Chromel-alumel thermocouple Radiation pyrometer Optical pyrometer Either B or C ANSWER DOWNLOAD EXAMIANS APP
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