Process Control and Instrumentation Which of the following thermocouples will give the highest output for the same value of hot and cold junction temperature? Platinum-platinum + rhodium All of these Iron-constantan Chromel-constantan Platinum-platinum + rhodium All of these Iron-constantan Chromel-constantan ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation 0n-off control which is a special case of proportional control, has a band width of about __________ percent. 75 25 100 75 25 100 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 A sinusoidal variation in the input passing through a linear first order system Gets amplified (magnitude increases) Gets attenuated (magnitude decreases) Becomes more oscillatory (frequency increases) Becomes less oscillatory (frequency decreases) Gets amplified (magnitude increases) Gets attenuated (magnitude decreases) Becomes more oscillatory (frequency increases) Becomes less oscillatory (frequency decreases) ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following filled system expansion thermometer has the capability to measure the lowest temperature? Mercury in glass thermometer Fused metal (Na or K) in steel thermometer Alcohol in glass thermometer Mercury in steel thermometer Mercury in glass thermometer Fused metal (Na or K) in steel thermometer Alcohol in glass thermometer Mercury in steel thermometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Mercury manometer (U-tube type) exemplifies a __________ order system. Zero Second Third First Zero Second Third First ANSWER DOWNLOAD EXAMIANS APP
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