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EET220 Industrial Applications Midterm Exam Questions and Answers - ECPI University
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EET220 Industrial Applications Midterm Exam Questions and Answers - ECPI University
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Question 1pts
A _____ is an example of an unintentional factor that causes the condition of the
controlled variable to become different from the set point.
set point change
Correct!
disturbance
load change
sensor
Question 2
pts
Phototransistors and photodiodes respond better to _____ light waves.
Correct!
infrared
visible
Question 3
pts
A complex machine in which process variables such as pressure, temperature, level,
and flow are manipulated simultaneously; separate control loops are used to regulate
each one.
Correct Answer
True
,You Answered
False
Question 4
0. pts
Match the following methods of light detection with the following applications for which
they are most likely used. Methods may be used more than once.
a. opposed sensing
b. retroreflective scanning
c. diffuse sensing
d. convergent sensing
e. specular sensing
detecting a clear object e
detecting an object that does not have a flat surface b
detects an object at a specific distance c
detects an object from a long distance away d
detects and counts small objects at a rapid pace a
Answer 1:
Correct Answer
c
You Answered
e
Answer 2:
You Answered
b
Correct Answer
d
Answer 3:
You Answered
c
Correct Answer
d
, Answer 4:
Correct Answer
a
You Answered
d
Answer 5:
Correct!
a
Question 5
pts
When the gain of a proportional controller is 4, it will cause the process variable to
change more quickly than if the gain is 1.
Correct Answer
True
You Answered
False
Question 6
pts
A monostable multivibrator produces _____.
Correct Answer
one pulse after a signal is applied to the input
You Answered
a continuous square wave after power is applied
produces nonstable signal
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