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Contemp. MFG Proc. Test

Terms in this set (65)

In London, England many of the Underground, or subway, stations have three escalators.
It's always the case that two of them are up escalators, and one is a down escalator. It doesn't matter which way the rush hour crowds are moving, or if more people are arriving or leaving, or the time of day: There are always two that go up, and one that goes down. The same is true for underground stations out in the suburbs.
When the station with the escalators is elevated above ground, the opposite situation holds. That is, there are two escalators going down, and one going up.
Why is this?
This is a classic example of flow / through put / bottleneck avoidance. When people arrive to board the "U" they come at their own pace....one, two....maybe a dozen at a time. One escalator is adequate to handle the flow. When they arrive at their destination the whole mass of people is moving at the same pace. Two escalators are necessary to handle the sudden tidal wave of passengers.


A man went to his dentist because he feels something wrong in his mouth. The dentist examines him and says, "that new upper plate I put in for you six months ago is eroding. What have you been eating?"
The man replies, "all I can think of is that about four months ago my wife made some asparagus and put some stuff on it that was delicious...Hollandaise sauce. I loved it so much I now put it on everything --- meat, toast, fish, vegtables, everything."
"Well," says the dentist, "that's probably the problem. Hollandaise sauce is made with lots of lemon juice, which is highly corrosive. It's eaten away your upper plate. I'll make you a new plate, and this time use chrome." "Why chrome?" asks the patient.
To which the dentist replies, "It's simple. Everyone knows that there's no plate like chrome for the Hollandaise!"
I've truly enjoyed getting to know you this semester. Thanks for enduring my Dain Bramage. Happy Hollandaise!Mr. K