Process Control and Instrumentation Working principle of mercury in glass thermometer is Pressure rise with temperature Linear expansion None of these Volumetric expansion Pressure rise with temperature Linear expansion None of these Volumetric expansion ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Out of the following themocouple wire insulating material, the highest temperature rating is for Teflon Fibre glass Ceramic fibre Asbestos Teflon Fibre glass Ceramic fibre Asbestos ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following thermocouples is capable of measuring a temperature of -50°C? Iron-constantan Platinum - platinum + rhodium Chromel - alumel Copper - constantan Iron-constantan Platinum - platinum + rhodium Chromel - alumel Copper - constantan ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation The time constant of a first order process with resistance R and capacitance C is R + C 1/RC RC R - C R + C 1/RC RC R - C ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Ordinary mercury in glass thermometer is used for measuring temperature upto 120°C. However, for measuring higher temperature upto __________ °C, thermometer is made by filling nitrogen under pressure above the mercury, which stops the evaporation of mercury and reduces the chance of broken thread of mercury. 350 550 700 250 350 550 700 250 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following shows maximum dip effect (indicating reverse direction of temperature change)? Thermocouple Radiation pyrometer Mercury thermometer Bimetallic thermometer Thermocouple Radiation pyrometer Mercury thermometer Bimetallic thermometer ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS