A non-linear system will have __________ steady state values. one more than one

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Question
A non-linear system will have __________ steady state values.
Options
A. one
B. more than one
C. two
D. three

Correct Answer

more than one

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2. 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
Options
A. air to open valve with the controller direct acting.
B. air to close valve with the controller indirect acting.
C. air to open valve with the controller indirect acting.
D. air to close valve with the controller direct acting.

4. Block diagram of a simple standard control system is shown below in the figure.

Which of the following statement about the above control system is wrong?
Options
A. The transfer functions of the measuring element and the process is represent by H and G₂ respectively
B. The overall transfer function for the change in load (X = 0) is given by
C. The overall transfer function for the change in set point (X₁ = 0) is given by
D. Manipulated variable is represented by C.

5. Platinum resistance thermometer can be used upto antimony point which is __________ �C, and is the temperature of equilibrium between solid antimony & liquid antimony at normal atmospheric pressure.
Options
A. 961.93
B. 630.74
C. 1064.43
D. 1261.93

6. Which of the following thermocouples is capable of measuring a temperature of -50�C?
Options
A. Platinum - platinum + rhodium
B. Chromel - alumel
C. Iron-constantan
D. Copper - constantan

8. The Laplace transform of exp(at), where a > 0, is defined only for the Laplace parameter, s > a since
Options
A. the function is exponential.
B. the Laplace transform of integral of exp(at) has finite values only for s > a.
C. the Laplace transform integral of exp(at) has initial values only for s > a.
D. the function exp(at) is piece-wise continuous only for s > a.

10. A stable system is the one
Options
A. for which the output response is bounded for all bounded input.
B. which exhibits an unbounded response to a bounded input
C. which satisfies the conditions for a servo problem.
D. none of these.

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