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CC Advertisers
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11-01-2007, 07:38 PM
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CC Member
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Join Date: Feb 2005
Location: Gilbert,
AZ
Cobra Make, Engine:
Posts: 157
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Not Ranked
What's your answer to this question??
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Advertising
11-01-2007, 07:42 PM
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CC Member
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Join Date: May 2001
Location: California,
Ca
Cobra Make, Engine: NAF 289 Slabside Early Comp Car with 289 Webers and all the goodies. Cancelling the efforts of several Priuses
Posts: 6,592
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Not Ranked
I would say #3
__________________
Rick
As you slide down the Banister of Life, may the splinters never be pointing the wrong way 
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11-01-2007, 07:44 PM
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Senior Club Cobra Member
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Join Date: Feb 2004
Cobra Make, Engine:
Posts: 1,226
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Not Ranked
Definately #3
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11-01-2007, 07:47 PM
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CC Member
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Join Date: Mar 1999
Location: penn.,
Posts: 2,560
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Not Ranked
two is the answer
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11-01-2007, 07:47 PM
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California Dreamin Member
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Join Date: Oct 2007
Location: Hollywood,
FL
Cobra Make, Engine:
Posts: 611
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Not Ranked
#5 - Because it's there.
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11-01-2007, 07:48 PM
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CC Member
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Join Date: Feb 2005
Location: Gilbert,
AZ
Cobra Make, Engine:
Posts: 157
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Oh...this is going to be good....
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11-01-2007, 07:49 PM
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Senior Club Cobra Member
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Join Date: Dec 2001
Location: Glendale,
AZ.
Cobra Make, Engine: Cobray-C3, The 60's body lines on todays chassis technology
Posts: 2,302
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Not Ranked
# 3 describes a normally aspirated engine.
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11-01-2007, 07:57 PM
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CC Member
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Join Date: Jul 2004
Location: CONCORD,
NH
Cobra Make, Engine: Gulf GT40 CAV137, Cobra ERA286
Posts: 513
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Not Ranked
I agree with Mr. Bruce! #2! I think there is more vac with the down stroke and open valve than outside pres.
__________________
Gulf GT40 CAV137
427 Cobra ERA286
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11-01-2007, 07:58 PM
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Senior Club Cobra Member
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Join Date: Mar 2002
Location: God's country,
ME
Cobra Make, Engine: Original ERA 427sc, Powered by Gessford
Posts: 2,678
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Not Ranked
Quote:
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Originally Posted by mr bruce
two is the answer
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That is Correct!
__________________
Replica is not a dirty word.
"If you can't be a good example, then you'll just have to be a horrible warning."
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11-01-2007, 08:02 PM
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CC Member
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Join Date: Mar 1999
Location: penn.,
Posts: 2,560
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Go out to the garage, take off your aircleaner. Place you hand over the carb. What do you feel, NUTHIN'. Now start your engine, what do you feel, SUCTION.Piston PULLING the fuel/air charge into the cylinder.
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11-01-2007, 08:07 PM
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Senior Club Cobra Member
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Join Date: Mar 2001
Location: Northport,
NY
Cobra Make, Engine: Kirkham, KMP178 / '66 GT350H, 4-speed
Posts: 10,362
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Not Ranked
Quote:
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During the intake stroke of a naturally aspirated engine, a vacuum in created. Because the pressure inside the cylinder is now lower then atmospheric pressure, air enters the cylinder and the pressure is equalized.
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Lousy wording of the answers. 
3. ...but I'd give the 2's a correct answer also. |
11-01-2007, 08:07 PM
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Senior Club Cobra Member
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Join Date: Jan 2003
Location: Roseville,
CA
Cobra Make, Engine: 427 Unique Roadster, FE by FE Specialties, 470hp, Top Loader, 3:31 Jag
Posts: 1,716
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Not Ranked
The #3's have superchargers!!! 
__________________
Phil
CA SPCN 2004-040 complete and legal
http://www.uniquecobra.com/
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11-01-2007, 08:08 PM
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CC Member
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Join Date: Aug 2004
Location: SE Wisconsin,
Wi
Cobra Make, Engine: Arntz/SBC/Jag
Posts: 1,033
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Not Ranked
I know what test this is from !
I had a lot more head scratching in the section with the pulleys.
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11-01-2007, 08:17 PM
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California Dreamin Member
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Join Date: Oct 2007
Location: Hollywood,
FL
Cobra Make, Engine:
Posts: 611
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Not Ranked
When the piston goes down, it causes a vacuum - a volume of space in which the gaseous pressure is much less than standard atmospheric pressure. That would lead me to guess that the answer is #3 because when the valve opens the air would be pushed into the vacuum at a pressure of 14.7 lbs per square inch.
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11-01-2007, 08:18 PM
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CC Member
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Join Date: Feb 2006
Location: IGH, MN,
mn
Cobra Make, Engine: scratch build self design 4.6l DOHC
Posts: 769
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Not Ranked
It's three let them take the whole test, I got 98%, I know I got it wrong the first time.
How smart are you
http://www.forddoctorsdts.com/quizze...alAptitude.php
Patrick |
11-01-2007, 08:20 PM
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CC Member
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Join Date: Feb 2005
Location: Gilbert,
AZ
Cobra Make, Engine:
Posts: 157
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Not Ranked
I got a 94... 96 is the question 48 is B.....lol
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11-01-2007, 08:22 PM
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Senior Club Cobra Member
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Join Date: Feb 2004
Cobra Make, Engine:
Posts: 1,226
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Not Ranked
The Intake Stroke:
On the intake stroke, the intake valve has opened. The piston is moving down, and a mixture of air and vaporized fuel is being pushed by atmospheric pressure into the cylinder through the intake valve port.
I've worked with pumps for 30+ years. This is basic stuff.
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11-01-2007, 08:33 PM
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CC Member
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Join Date: Feb 2005
Location: Gilbert,
AZ
Cobra Make, Engine:
Posts: 157
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Not Ranked
So when I breath and my lungs expand....atmospheris pressure is filling my lungs, or are my lungs causing a vacuum sucking air in??
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11-01-2007, 08:42 PM
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CC Member
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Join Date: Dec 2002
Location: modesto ca.,
ca
Cobra Make, Engine: csx4163 comp
Posts: 35
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Not Ranked
why would you lose h.p. at higher altitude?
__________________
truss 1x
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11-01-2007, 08:44 PM
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Senior Club Cobra Member
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Join Date: Mar 2002
Location: God's country,
ME
Cobra Make, Engine: Original ERA 427sc, Powered by Gessford
Posts: 2,678
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Not Ranked
less oxygen in the air.
__________________
Replica is not a dirty word.
"If you can't be a good example, then you'll just have to be a horrible warning."
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