Question

dead time refers to:

select one:
a. delay before system responds
b. time to reach final state
c. maximum rpm
d. ph drift

Explanation:

Define dead time in process control

In Process Control Loops, dead time (also known as transport delay or pure delay) is the interval of time between the initiation of an input change (or disturbance) and the start of the resulting observable response in the system.

Analyze the given options

• a. Delay before system responds: This matches the definition of dead time, representing the period where no reaction is observed after a change is made.
• b. Time to reach final state: This refers to settling time or response time, not dead time.
• c. Maximum rpm: This is a rotational speed limit, unrelated to system response delays.
• d. pH drift: This is a slow, unwanted change in a sensor's reading over time, unrelated to response delay.

Select the correct option

Option (a) is the correct definition of dead time.

Answer:

• a. Delay before system responds (Correct answer)
• b. Time to reach final state
• c. Maximum rpm
• d. pH drift