Process Control and Instrumentation Questions

• Which of the following flow-metering instru-ments is an areameter?
• Out of the following temperature measuring instruments, the measurement accuracy will be minimum for the
• Thermal conductivity cell is the primary element of a/an __________ analyser.
• Small furnace draught is accurately measured by an inclined tube manometer, in which the manometric liquid used most commonly is
• Presence of a small amount of water in the organic systems can be determined by the __________ method.
• The open loop transfer function of a control system is . This represents
• __________ is the static characteristics of an instrument,
• A pyrheliometer is an instrument used for measuring the
• A simple pitot tube measures the
• Temperature measurement range of iron-constantan thermocouple is 0 to 870°C. It can be used to measure sub zero temperature, because at lower temperature
• Flow rate measurement of hostile acids and alkalis can be most suitably done by a/an
• The level of a liquid under pressure can be determined using
• Sub-zero temperature (< 0°C) can be measured by a constant volume gas thermometer employing
• The term analogous to voltage in a single tank system is the
• Which is the symbol for "pneumatic control valve"?
• When the damping co-efficient (ξ) is unity, the system is
• Compositional analysis of flue gas coming out of a furnace in respect of O2 and CO2% can be continuously done by a/an
• Thermisters which have a very high temperature co-efficient of resistivity belong to the class of solid called
• Which of the following is never used as an element of industrial resistance thermometer?
• __________ is an example of distributed parameter system