Dave - for week 16 I felt sorry for Clumpy as he de-scaled the wash the
first time he was here, so he helped with reflow profiling.
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of David D. Hillman
Sent: Monday, April 04, 2011 5:40 PM
To: [log in to unmask]
Subject: [TechNet] NTC Friday Element Quiz - the Answer
Hi folks - Here is the Friday Element Quiz Answer:
The Question
This element has its widest use in catalytic converters for cars where
its
main function is to reduce NOx gases. This element is also used in
jewelry
and oxidation resistant switch contacts. Which element is being
described?
The Answer:
The element is Rhodium (Rh). Rhodium was discovered in 1803 by William
Wollaston. Automobile catalytic converters contain Pt, Pd and Rh. The Pt
and Pd accomplish the reduction of unburned hydrocarbons and CO in the
exhaust gas while Rh reduces the NOX gases to N2 and O2. There is nearly
five times the amount of Pt and Pd in contrast to Rh in a catalytic
converter. At the optimum temperature of 400-600C, Rh, Pd and Pt convert
approximately 90% of the exhaust pollutants to H2O, O2 and N2. And as
many
folks pointed out, the quantity of these precious metals in a converter
has made them targets for theft.
The winner is Graham Collins of L3 Communications with a whole herd of
folks closely on his heels once everyone re-read the element clues.
Clumpy
and Kloumpios will head for Canada asap.
So far they have:
Week 1 Lamar Young, SCS Coatings
- accomplished nothing (drank lots of coffee)
Week 2 Bev Christian, RIM
- conducted REACH material testing
Week 3 Drew Meyer, Benchmark Electronics Inc.
- Solderability testing and mowed the lawn
Week 4 Ian Fox, Goodrich
- had an epic journey of travel
Week 4 Gary Ferrari, Garrick Global
- unknown
Week 5 Fredrick Miller, Astrolab
- unknown
Week 6 David Nelson, Raytheon
- Was a tackling dummy for Dallas Cowboys
Week 7 Graham Collins, L3 Communications
- Cleaned gutters and painted window trim
Week 8 Bill Noel, ITT Geospatial Systems Division
- unknown
Week 9 Steve Gregory of RD Circuits
- unknown
Week 10 David Bealer of Watchfire Signs
- descaled the in-line wash machine! Ouch!
Week 11 Dick Krug of Sparton Corporation
- assisted with AS9100 quality management systems requirements audit
Week 12 Steve Creswick of Balanced Enterprise Solutions
- Acted as Steve's "go fer" due to a broken leg!
Week 13 Gebhard Neifer, Delphi
- conducted a plasma pre treatment Taguchi DOE for a sealing process
Week 14 Bev Christian, RIM
- assisted with a tin pest investigation/test
Week 15 Bev Christian, RIM
- assisted Bev shoveling snow
Week 16 David Bealer of Waatchfire Signs
- unknown
Week 17 Brian Ellis, rumored to be retired
- assisted with rewiring the house, had a tractor accident and found
his
cousin Kloumpios
Week 18 Denny Fritz, SAIC
- assisted with tin whisker inspection/examinations
Week 19 Graham Collins, L3 Communications
- assisted with ???????
Dave Hillman
Rockwell Collins
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