Q. Water is flowing through a series of four tanks and getting heated as shown in figure. It is desired to design a cascade control scheme for controlling the temperature of water leaving the tank 4 as there is a disturbance in the temperature of a second stream entering the tank 2. Select the best place to take the secondary measurement for the second loop.

View solution

Q. Which is the symbol for "pneumatic control valve" ?

View solution

Q. Find the ultimate gain and frequency for a proportional controller in the case of a process having the transfer function Gp(s) = 1/(4s + 1)(2s + 1)(s + 1).

View solution

Q. Find the Laplace transform of the following input function shown in figure.

View solution

Q. A control system has the following transfer function. The initial value of the corresponding time function is

View solution

Q. The root locus plot of the roots of the characteristics equation of a closed loop system having the open loop transfer function given below, will have a definite number of loci for variation of K from 0 to ∞. The number of loci is

View solution

Q. What is the Laplace transform of sin t ?

View solution

Q. For the time domain function f(t) = t, the Laplace transform of following equation is given by

View solution

Q. __________ is undesirable in thermocouples used in industries.

View solution

Q. Select the correct statement from the following.

View solution

Q. For an input forcing function, X(t) = 2t², the Laplace transform of this function is

View solution

Q. Continuous shell temperature measurement in a liquid-liquid heat exchanger is done by a

View solution

Q. Thermal conductivity measurement com-prises the working principle of a

View solution

Q. Response of a system to a sinusoidal input is called __________ response.

View solution

Q. The closed loop pole of a stable second order system could be

View solution

Q. Smoke density of the flue gas going out of the chimney is measured by a

View solution

Q. Which of the following measurements can be made by the measurement of emf ?

View solution

Q. A magnetic flowmeter is

View solution

Q. Zirconia probe is used for the continuous measurment of __________ flue gases going out of the furnace.

View solution

Q. Strain gage pressure transducers are used to measure __________ pressures.

View solution