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Control Systems Mcqs

Q:

Which of the following is an example of an open loop system?

A) Household Refrigerator B) Respiratory system of an animal
C) Stabilization of air pressure entering into the mask D) Execution of program by computer
 
Answer & Explanation Answer: D) Execution of program by computer

Explanation: Execution of a program by a computer is an example of an open loop system as the feedback mechanism is not taken by the computer program and set programs are used to get the set output.

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Q:

The output of an first order hold between two consecutive sampling instants is:

A) Constant B) Quadratic Function
C) Ramp Function D) Exponential Function
 
Answer & Explanation Answer: C) Ramp Function

Explanation: Inverse Laplace of the equation of first order hold gives the ramp function and hence the output of an first order hold between two consecutive sampling is ramp function.

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