Question 1

What are the basic components of a ladder diagram program in a PLC?

Options :

A : ontacts, coils, timers, and counters

B : Inputs, outputs, timers, and counters

C : Contacts, coils, functions, and data

D : Inputs, outputs, functions, and data

Answer: A

Question 2

Which of the following is true of multivariate statistical process control?

Options :

A : It is a data-based method for monitoring and controlling several interrelated process variables simultaneously.

B : It is a model-based method for optimizing and improving the performance and quality of a single process variable.

C : It is a graphical method for visualizing and exploring the relationships and patterns among multiple process variables.

D : It is a statistical method for testing and comparing the differences and effects of multiple process variables.

Answer: A

Question 3

Which of the following places the steps of the procedure model in the correct order?

Options :

A : Procedure, unit procedure, operation, phase, action, transition.

B : Procedure, operation, unit procedure, phase, transition, action.

C : Procedure, unit procedure, operation, transition, phase, action.

D : Procedure, unit procedure, operation, phase, transition, action.

Answer: A

Question 4

A sampled data model of the process is a

Options :

A : discrete-time representation of a continuous-time system

B : continuous-time representation of a discrete-time system

C : linear approximation of a nonlinear system

D : nonlinear approximation of a linear system

Answer: A

Question 5

Which of the following statements is true about gauge pressure?

Options :

A : It is measured relative to a perfect vacuum.

B : It is measured relative to the local atmospheric pressure.

C : It is measured relative to the pressure difference between two points.

D : It is measured relative to the pressure in an adjacent vessel.

Answer: A

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