Out of the following themocouple wire insulating material, the highest temperature rating is for
Polarograph is meant for the analysis of
Presence of a small amount of water in the organic systems can be determined by the __________ method.
Dead zone in an instrument must be less than __________ percent of the scale.
Which is the most suitable instrument for measuring pressure below 3 microns ?
Which of the following fluid flow measuring devices can measure the largest flow rate ?
The transfer function of a pure dead time system with dead time τd is
Emission spectroscopy is used for
Routh stability method uses __________ loop transfer function.
Transfer function of transportation lag is
In a shell and tube heat exchanger, the flow rate of heating/cooling fluid is the __________ variable.
The transfer function for a first order process with time delay is
Flow rate of sludge is not measured by a/an
Which of the following is not a second order instrument ?
Working principle of radiation pyrometer is based on the
A mercury thermometer can not be used to measure the temperature below the freezing point of mercury, which is __________ °C.
Small furnace draught is accurately measured by an inclined tube manometer, in which the manometric liquid used most commonly is
Liquid levels in autocalves are measued by
__________ controller has the maximum stabilising time.
In a shell and tube heat exchanger, the inlet temperature of heating/cooling fluid is the __________ variable.
Thermal conductivity cell is the primary element of a/an __________ analyser.
Specific conductance is defined as the reciprocal of resistance in ohms of 1c.c. of liquid at a specified temperature. Its value for distilled water is about __________ micro mho/cm3.
A simple pitot tube measures the
E.m.f. generated by thermocouples is of the order of
A pyrheliometer is an instrument used for measuring the
Out of the following temperature measuring instruments, the measurement accuracy will be minimum for the
Stalagmometer is used for the measurement of
What is the Laplace transform of impulse input having magnitude 'X' ?
Zirconia probe is used for the measurement of
For a feed back control system to be stable, the
Which of the following thermocouples has the widest temperature measurement range ?
Flow rate through an orifice is __________ the pressure differential.
The Laplace transform of exp(at), where a >is defined only for the Laplace parameter, s > a since
The deflection in diaphragm (which is used as pressure sensor in pneumatic and electronic instruments) is dependent on the metal thickness, its diameter (d) and shape & number of corrugations. Its deflection is proportional to
Polarisation of light forms the working principle of a
The level of a liquid under pressure can be determined using
Thermocouple is suitable for measuring
Silver point temperature is __________ °C.
A non-linear system will have __________ steady state values.
Liquid flow rate in an open channel can not be measured by a/an
The root locus method, a pole of a transfer function G(s) is the value of s for which G(s) approaches
__________ type of element is normally not used in the bimetallic thermometers.
Temperature control of an exothermic chemical reaction taking place in a CSTR is done with the help of cooling water flowing in a jacket around the reactor. The types of valve and controller action to be recommended are
Flow rate measurement of hostile acids and alkalis can be most suitably done by a/an
Meleoid gauge measures the __________ pressure.
Sub-zero temperature (< 0°C) can be measured by a constant volume gas thermometer employing
Reference points i.e., ice point and steam point in Reaumer temperature scale are respectively
A bimetallic thermometer as compared to industrial mercury in glass thermometer has almost the same
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
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