Q. A photo electric device in which the resistance of the metal is directly proportional to the light striking on it, is known as photo-conductive cell. Photoelectric transducers are used for the measurement of those parameters, which can be used to produce variation in

View solution

Q. A typical example of a physical system with under damped characteristic is a

View solution

Q. An aneroid barometer measures the __________ pressure.

View solution

Q. A bolometer is

View solution

Q. Thermal wells are used in the temperature measurement to

View solution

Q. The offset introduced by proportional controller with gain Kc in response of first order system can be reduced by

View solution

Q. When a bare thermocouple is covered by a protective sheath, the response becomes

View solution

Q. What is the normal percentage of rhodium in platinum + rhodium element used in the thermocouple ?

View solution

Q. Helium gas constant volume thermometer is suitable for the measurement of a temperature of __________ °C.

View solution

Q. Mass spectrometer is used for the composition analysis of

View solution

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