MECHANICAL ENGINEERING QUIZ

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The time-based dependence of a system's output on present and past inputs (its "memory") is known as:

Question 1 options:

a) 

Memory

b) 

Gain

c) 

Hysteresis

d) 

Sampling period

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Question 2 (1 point)

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https://d2l.pdx.edu/d2l/common/viewFile.d2lfile/Database/MzA4NTc0OA/quiz7.png?ou=574457

Identify the following features of the chart shown:

Question 2 options:

Upper control limit (UCL)

Lower control limit (LCL)

Error

Setpoint

1.

  

2.

  

3.

  

4.

  

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Question 3 (1 point)

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The setpoint, provided by your instructor, will be:

Question 3 options:

a) 

in salinity percentage

b) 

always the same as the current salinity concentration

c) 

in arduino reading

d) 

always above the UCL

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Question 4 (1 point)

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PID is a common acronym in control theory. In PID, the letter "P" stands for:

Question 4 options:

a) 

Power

b) 

Phase

c) 

Process

d) 

Proportional

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Question 5 (1 point)

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In the fishtank system, one reasonable assumption might be:

Question 5 options:

The difference in density between the incoming and outgoing water is negligible. 

The salinity of the water in the fishtank will never exceed 15%

Your instructor will grade you leniently 

The UCL will always be at least 2.5V higher than the the LCL