Q. The time constant of a unity gain, first order plus time delay process is 5 min. If the phase lag at a frequency of 0.2 rad/min is 60°, then the dead time (in minutes) is

View solution

Q. Which of the following does not figure in the list of seven substances selected for international temperature scale ?

View solution

Q. A constant volume gas thermometer employing __________ is used to measure sub-zero (i.e., < 0° C) temperature.

View solution

Q. pH meter has

View solution

Q. Routh test

View solution

Q. Bode diagram are generated from output response of the system subjected to which of the following input?

View solution

Q. Which of the following thermocouples is the most suitable for measuring a temperature of about 1600°C in an oxidizing atmosphere ?

View solution

Q. Mercury thermometer can be used to measure the temperature upto __________ °C.

View solution

Q. The transfer function of a process is 1 / (16s² + 8s + 4) . If a step change is introduced into the system, then the response will be

View solution

Q. Composition of alloys can be determined by

View solution

Q. Optical activity of a solution can be determined using a

View solution

Q. Stability of a control system containing a transportation lag can be best analysed by

View solution

Q. Stabilising time for the controllers is the time required for the response to reach __________ percent of its ultimate value.

View solution

Q. Vapour actuated pressure spring thermometer does not require ambient temperature compensation. Ambient temperature compensation is provided in gas or liquid expansion pressure spring thermometer by

View solution

Q. Which of the following is not a differential pressure flow meter ?

View solution

Q. Working principle of mercury in glass thermometer is based on volumetric expansion of mercury with increase in temperature. Which of the following undergoes minimum volumetric expansion for a given temperature change ?

View solution

Q. Bourdon gauges are used for measuring pressure (kg/cm² )

View solution

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