The lifetime of a cooling fan, in hours, that is used in a computer system has the Weibull distribution with ? = 1.5 and ? = 0.0001.
a. What is the probability that a fan lasts more than 10,000 hours?
b. What is the probability that a fan lasts less than 5000 hours?
c. What is the probability that a fan lasts between 3000 and 9000 hours?
Let T be the lifetime of a fan.
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A circuit in which one side of the power source is referenced to ground is called __________.
a. incomplete b. polarized c. damaged d. arced
Briefly describe polar coordinate dimensioning practice.
What will be an ideal response?
You are setting up a system to detect if fluid is inside a carton so the robot can pick the empty cartons off the line. Which of the following would work for this task?
A. Inductive proximity switch B. Capacitive proximity switch C. Photoelectric proximity switch D. Hall effect sensors
There are four basic foundation designs from which to choose: basement, crawl space, ____, and piers, each of which can be constructed using a variety of materials and methods.
A. slab-on-grade B. footings C. columns D. pallets