Process Control and Instrumentation The time constant of a first order process with resistance R and capacitance C is RC R - C 1/RC R + C RC R - C 1/RC R + C ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following is not the triple point of water? 32°F 273°K 492°R 32°R 32°F 273°K 492°R 32°R ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation An amplitude ratio of 0.1 corresponds to __________ decibels. 20 10 -20 -10 20 10 -20 -10 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following filled system expansion thermometer has the capability to measure the lowest temperature? Fused metal (Na or K) in steel thermometer Mercury in glass thermometer Mercury in steel thermometer Alcohol in glass thermometer Fused metal (Na or K) in steel thermometer Mercury in glass thermometer Mercury in steel thermometer Alcohol in glass thermometer 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. 550 700 350 250 550 700 350 250 ANSWER DOWNLOAD EXAMIANS APP
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° 0° 45° 90° 180° 0° 45° 90° ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS