Rulers are measuring instruments used to draw objects at full, reduced, or enlarged sizes. The notation for the drawing reduction or enlargement is also referred to as the rule of the drawing.
Answer the following statement true (T) or false (F)
False
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A particular automatic sprinkler system has two different types of activation devices for each sprinkler head. One type has a reliability of 0.9; that is, the probability that it will activate the sprinkler when it should is 0.9. The other type, which operates independently of the first type, has a reliability of 0.8. If either device is triggered, the sprinkler will activate. Suppose a fire starts near a sprinkler head.
a. What is the probability that the sprinkler head will be activated? b. What is the probability that the sprinkler head will not be activated? c. What is the probability that both activation devices will work properly? d. What is the probability that only the device with reliability 0.9 will work properly?
Internal slip is defined as:
a. fluctuations of suction pressure created by the intake stroke. b. % of fluid that leaks by the internal clearances over a given time. c. difference between how much liquid a pump can move versus how much it actually does. d. b & c
What is the purpose of a photo-electric eye on an ice machine?
A) The photo-electric eye detects when no ice production has occurred and shuts down the unit, even if the bin is not full. B) The photo-electric eye detects when the ice bin is empty. C) The photo-electric eye detects when the ice bin is full. D) The photo-electric eye detects when no ice production has occurred and speeds up the freezing and harvesting cycles.
List two ways that part tolerances may be given.
What will be an ideal response?