Temperature measuring instruments are standardised mostly with __________ points of pure substances.
Pick out the first order system from among the following.
The maximum service temperature for fibre glass used as thermocouple wire insulation material is __________ �C.
Which of the following controllers has the least maximum deviation ?
Volumetric expansion is the working principle of the __________ thermometers.
Which of the following measurements can be made by the measurement of emf ?
A magnetic flowmeter is
Zirconia probe is used for the continuous measurment of __________ flue gases going out of the furnace.
Strain gage pressure transducers are used to measure __________ pressures.
The transfer function for a PID controller is (where, τ i is the integral (reset) time and τD is the derivative time.)
Compositional analysis of __________ is done using mass spectrometer.
The function of a transducer is to
Which of the following thermocouples will give the highest output for the same value of hot and cold junction temperature ?
Nichol's chart deals with
A proportional controller with a gain of Kc is used to control a first order process. The offset will increase, if
The symbol for "capillary line" in instrumentation diagram is
__________ is undesirable in thermocouples used in industries,
For an input forcing function, X(t) = 2t2, the Laplace transform of this function is
Select the correct statement from the following.
Continuous shell temperature measurement in a liquid-liquid heat exchanger is done by a
The __________ of a vapor pressure thermometer is a secondary element.
Emf developed by a thermocouple, while measuring a temperature of 600�C is about 5.5 mV. The type of thermocouple used is
Which of the following relates the absorption & evolution of heat at the junctions of a thermocouple to the current flow in the circuit?
The second order system with the transfer function has a damping ratio of
In a shell and tube heat exchanger, the flow rate of heating/cooling fluid is the __________ variable.