Process Control and Instrumentation Questions

• Dead zone is the
• Which thermocouple can be used to measure a temperature of around 1400°C?
• Which of the following thermocouples can measure the maximum temperature?
• Gas chromatography is used for the measurement of
• Thermistors are made of
• In a closed loop system, the process to be controlled is an integrating process with transfer function l/2s. The controller proposed to be used in an integral controller with transfer function 1/T1s. When a step change in set point is applied to such a closed loop system, the controlled variable will exhibit
• Bode diagram is a plot of
• The time constant of a first order process with resistance R and capacitance C is
• A non-linear chemical system is exemplified by a/an
• Accurate temperature measurement performance of a radiation pyrometer can not be affected, if the
• Which of the following thermocouple materials does not contain nickel?
• The initial value (t=0) of the unit step response of the transfer function [(s + 1)/(2s + 1)] is
• Which of the following thermometers is not suitable for distant reading upto 60 metres?
• Liquid flow rate in a small channel is best measured by a/an
• A barometer measures the __________ pressure.
• Radiation pyrometers as compared to thermocouples
• Pick out the wrong statement
• Which of the following filled system expansion thermometer has the capability to measure the lowest temperature?
• Range of hydrogen gas constant volume themometer is __________ °C.
• A sinusoidal variation in the input passing through a linear first order system