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post #1 of 5 (permalink) Old 05-05-2008, 10:44 AM Thread Starter
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Join Date: Apr 2002
Location: Plainfield IL
Posts: 45,956
Location: Plainfield IL
Sportbike: A couple of pasta rockets
Years Riding: Since 1989
How you found us: In the beginning there was CLSB and Tony saw that it was good.
           
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tst

Just keeping my online homework here as I need to work on it through out the day and dont want to keep accessing the schools system from my Iphone. . Pay no attention.


1.
Relative Humidity represents the amount of water in each pound of air in grains.
A) True
B) False
2.
The velocity pressure was measured at 2.1 inches of water and the total pressure measured 21.1 inches of water. Determine the static pressure.
A) 19 inches of water
B) 23.3 inches of water
C) 44.31 inches of water
D) 1.25 inches of water
3.
If the airflow was measured at 2500 CFM but previously measured 3000 CFM with an RPM of 8000 RPM then you would expect the new RPM to be:
A) 9195 RPM
B) 81%
C) 6666 RPM
D) 2234 RPM
4.
Mass flow is just the density times the air volume.
A) True
B) False
5.
For a pure sensible heating process the inlet db air is 57oF and discharge db is 101oF with an air flow of 1000 CFM. The SH is 60 GR/lb. Find the total load.
A) 30,992 Btuh
B) 102,000 Btuh
C) close to zero
D) 48,500 Btuh
E) 85,500 GR
6.
If the air velocity is 400 fpm, determine the volume of air moving through a 12 inch diameter duct:
A) 452 Cfm
B) 45,239 Cfm
C) 314 Cfm
D) 1809 Cfm
7.
If the required airflow was 4528 CFM with a BHP of 1.23 Hp but the installed motor could only produce 1 HP, what effect would this have on the airflow?
A) CFM2 = 2366 CFM
B) CFM2 = 8426 CFM
C) CFM2 = 4226 CFM
D) CFM2 = 8130 CFM
8.
Fan velocity pressure is the pressure corresponding to the fan air outlet velocity.
A) True
B) False
9.
Enthalpy is the amount of heat found only in the sensible air.
A) True
B) False
10.
If the airflow is set at 600 cfm and moves through an area 10 ft2, determine the velocity.
A) 6 fpm
B) 30 fps
C) 0.6 ft/min
D) 60 ft/min
11.
Match terms to definitions
A. force times a distance
B. the ability to do work
C. unit of power
D. unit of energy
E. rate at which work is done

Work
Joule/second
Joule
Power
Energy
12.
If the RPMs of a fan are doubled, the total pressure will:
A)
increase by a factor of 4


B) decrease by a factor of 8
C) decrease by a factor of 4
D) double
13.
Blocked Tight Static Pressure is the operating condition when the fan outlet is completely closed, resulting in no air flow.
A) True
B) False
14.
Propeller fans are considered to be heavy duty. They are built for pressures in the range of 2 to 3 in. of water and are typically limited to industrial applications where noise considerations are not important.
A) True
B) False
15.
Specific Humidity represents the amount of water in each pound of air in grains.
A) True
B) False




HDTony.... Damn glad to meet you!

Government's view of the economy could be summed up in a few short phrases: If it moves, tax it. If it keeps moving, regulate it. And if it stops moving, subsidize it.

- Ronald Reagan

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post #2 of 5 (permalink) Old 05-05-2008, 10:47 AM
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Join Date: Feb 2008
Location: Pingree Grove, Il.
Posts: 1,363
Location: Pingree Grove, Il.
Sportbike: 01' ZX-6R
Years Riding: since I've been able to get it up:)
How you found us: google
           
some interesting work.....

what are you studying??
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post #3 of 5 (permalink) Old 05-05-2008, 10:55 AM Thread Starter
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Join Date: Apr 2002
Location: Plainfield IL
Posts: 45,956
Location: Plainfield IL
Sportbike: A couple of pasta rockets
Years Riding: Since 1989
How you found us: In the beginning there was CLSB and Tony saw that it was good.
           
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It's for an HVAC course I'm taking.




HDTony.... Damn glad to meet you!

Government's view of the economy could be summed up in a few short phrases: If it moves, tax it. If it keeps moving, regulate it. And if it stops moving, subsidize it.

- Ronald Reagan

AirTek Heating & Air inc.
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post #4 of 5 (permalink) Old 05-26-2008, 01:26 PM

 
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Join Date: Feb 2004
Location: Joliet Area
Posts: 1,436
Location: Joliet Area
Sportbike: ZX9R
Years Riding: 10+ years
How you found us: Gixxer Tony
           
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wouldn't it be better if you just put the correct answers?

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See this post ----> https://www.chicagolandsportbikes.com...1&postcount=16
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post #5 of 5 (permalink) Old 05-26-2008, 03:32 PM
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Join Date: Mar 2005
Location: Plainfield
Posts: 3,541
Location: Plainfield
Sportbike: 1000RR (Sold) Looking
Years Riding: Long time but few miles
How you found us: I saw CLSB tatooed on some porn star's ass
           
This is a set up, Tony knows that during the week bored CLSBers will find the answers to these questions.
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