Q. A first order system with a time constant of 1 min is subjected to frequency response analysis. At an input frequency of 1 radian/min, the phase shift is

View solution

Q. __________ stability method uses open loop transfer function.

View solution

Q. A pyranometer is an instrument used for measuring the

View solution

Q. All the thermocouples used for temperature measurement use dissimilar metal

View solution

Q. The inverse Laplace transform of the function f(s) = 1 / S(1+S) is

View solution

Q. Thermal conductivity based continuous flue gas analyser makes use of varying thermal conductivity of the constituents of flue gases. Which of the following constituents of flue gases has the maximum thermal conductivity ?

View solution

Q. Emf generated in a thermocouple depends on the temperature

View solution

Q. Working principle of mercury in glass thermometer is based on the __________ of mercury with increase in temperature.

View solution

Q. A system with a double pole at the origin is unstable since the corresponding term in the time domain

View solution

Q. To increase the speed of response of a pressure spring liquid or gas expansion thermometer, the clearance space between the thermometer bulb and the thermal well should not be filled with

View solution

Q. In a second order under damped system, the

View solution

Q. In an exothermic chemical reactor, the manipulated variable is the flow rate of

View solution

Q. Very low pressure is expressed in microns(μ), which is equal to __________ mm of Hg coloumn (absolute) at 0°C.

View solution

Q. Which of the following is not a second order instrument ?

View solution

Q. Small furnace draught is accurately measured by an inclined tube manometer, in which the manometric liquid used most commonly is

View solution

Q. 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.

View solution

Q. A simple pitot tube measures the

View solution

Q. For a feed back control system to be stable, the

View solution

Q. __________ is the static characteristics of an instrument,

View solution

Q. Phase lag of the frequency response of a second order system to a sinusoidal forcing function

View solution