Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 19-10-2007, 14:16   #16
Senior Cruiser
 
Alan Wheeler's Avatar

Cruisers Forum Supporter

Join Date: Dec 2003
Location: Marlborough Sounds. New Zealand
Boat: Hartley Tahitian 45ft. Leisure Lady
Posts: 8,038
Images: 102
I got one wrong. #48. Although it is technically correct I guess.
__________________

__________________
Wheels

For God so loved the world..........He didn't send a committee.
Alan Wheeler is offline   Reply With Quote
Old 19-10-2007, 14:21   #17
Moderator Emeritus
 
GordMay's Avatar

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 31,580
Images: 240
Quote:
Originally Posted by TAREUA View Post
Gord, I assume 50% is passing?
A score of 10% might put you in the upper 90 percentile of North Americans.
__________________

__________________
Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"



GordMay is offline   Reply With Quote
Old 19-10-2007, 16:10   #18
Registered User
 
cferger's Avatar

Join Date: Jan 2007
Location: Edmonds
Boat: Compac Suncat 17'
Posts: 33
78% my mother will not be happy.
__________________
cferger is offline   Reply With Quote
Old 19-10-2007, 18:27   #19
Senior Cruiser
 
senormechanico's Avatar

Cruisers Forum Supporter

Join Date: Aug 2003
Boat: Dragonfly 1000 trimaran
Posts: 5,827
94%

stupid fans, lol

Steve B.
__________________
senormechanico is offline   Reply With Quote
Old 19-10-2007, 20:10   #20
Registered User

Join Date: Oct 2006
Location: Lake Texoma (Texas)
Boat: Laguna 26
Posts: 31
They are wrong about #15 there is fricton anytime you use a block (or pulley to them). Just try to crank someone up a mast with the halyard ran through a bunch of blocks then try it with the same winch on the mast. Big difference.
__________________
TX Sailor is offline   Reply With Quote
Old 19-10-2007, 20:25   #21
Senior Cruiser

Cruisers Forum Supporter

Join Date: Nov 2005
Location: Out there doin' it
Boat: 47' Olympic Adventure
Posts: 2,635
I don't agree with 48, both answer are half-correct. However the answer to 38 is plain wrong.
Air is moving back to front in the driving fan and front to back in the other - it's the same as putting your outboard in reverse; it has to turn in the opposite direction.
__________________
Lodesman is offline   Reply With Quote
Old 19-10-2007, 20:47   #22
Moderator Emeritus
 
Ex-Calif's Avatar

Cruisers Forum Supporter

Join Date: May 2007
Location: Singapore
Boat: Maxi 77 - Relax Lah!
Posts: 11,514
Images: 4
Quote:
Originally Posted by cal40john View Post

You did make me see how I looked at the picture wrong though. I made it a 14 sq. in. disk on top and a 2 sq. in. disk on the bottom with a fluid in between, so applying pressure made no sense. I now see that the problem is a 14 sq. in. tube that reduces to a 2 sq. in. tube that has a stepped piston in it. Is that used anywhere in real life?

I am not sure what you mean by "is that used anywhere in real life."

This is the basis for hydraulic brake systems. Small pressure applied by foot - very large pressure applied to brake pistons.
__________________
Relax Lah! is For Sale <--- Click
Click--> Custom CF Google Search or CF Rules
You're gonna need a bigger boat... - Martin Brody
Ex-Calif is offline   Reply With Quote
Old 19-10-2007, 20:55   #23
Senior Cruiser
 
senormechanico's Avatar

Cruisers Forum Supporter

Join Date: Aug 2003
Boat: Dragonfly 1000 trimaran
Posts: 5,827
Quote:
Originally Posted by Ex-Calif View Post
I am not sure what you mean by "is that used anywhere in real life."

This is the basis for hydraulic brake systems. Small pressure applied by foot - very large pressure applied to brake pistons.
It's also used in Spectra watermakers, i.e. the Clark Pump.

Steve B.
__________________
senormechanico is offline   Reply With Quote
Old 19-10-2007, 21:48   #24
Senior Cruiser
 
Lancerbye's Avatar

Cruisers Forum Supporter

Join Date: Mar 2007
Location: Ladysmith,BC, Vancouver Island , Canada
Boat: Lancer 44 Motorsailer
Posts: 1,757
Images: 32
Gord

I had a hard time with #2 on your test. Couldn't find my license to check the spelling of my name. LOL
__________________
The basis of accomplishment is in never quitting
Mengzi Meng-tse
Lancerbye is online now   Reply With Quote
Old 20-10-2007, 05:43   #25
Registered User
 
Thermal's Avatar

Join Date: Jul 2005
Location: Honolulu
Boat: S2 11.0C 36' Puka Wai
Posts: 157
Images: 1
Well, got a 92. Made a couple of dumb mistakes, but for a couple of others... seems to me that this test has a large number of questions testing your knowledge of lingo, not your understanding of the mechanical concepts - Q48 being a prime example. I still don't get it. Is it that "suction" creates lower pressure that is the equalized by atmospheric pressure pushing air in instead of suction "pulling" air in? Seems like splitting hairs, considering the same test talks about Kg of force in several questions, yet a kilogram is not a unit of force but a unit of mass. The metric unit of force is a newton.
__________________
In theory, Practice and Theory are the same. In practice, they are not.
Thermal is offline   Reply With Quote
Old 20-10-2007, 07:28   #26
֍֎֍֎֍֎֍֎֍֎

Cruisers Forum Supporter

Join Date: Apr 2006
Posts: 13,042
Hey, Gord, you must be one of the folks who writes trick questions for the Regents' Exams.<G>

" 1) Who won World War II, and who finished second?"
Considering the relative economic shifts to the Axis and Allied powers? One could argue the Allies won the battles--and lost the war.

"2) Explain Einsteinís "Theory of relativity", " Hmmmm....Can you say, it was his BEST GUESS as to how parts of physics might be integrated? Or do you have to get into the hybrid that philosophy/religion/physics has gone into today? Including why the speed of light can drop to 30mph in the fifth state of matter (Bose-Einstein Condensate) and even why it has been reversed? Or, why "discrete" particles have been split--and then proven to still be linked, by means no one can fathom?

"3) How many commandments where handed to us by Moses (approximetly!)"
Counting the lost third tablet?[g] Or ignoring the one most often incorrectly translated? (There's no commandment against killing.)

"4) England had 6 Kings named Georg. The last was George VI."
Georg versus George, huh?[g]

"6) Which person does not fit the pattern?
a. The Pope
b. Martin Luther
c. Jack the Ripper
d. Jesus"
Obviously the Pope is the only one who has not somehow promulgated mass murder and violence--openly--or had it done in his name, without protesting.

"8) Who build the great Pyramid of Giza?
a. Blackwater USA
b. The Pharaos
c. Lego"
Trick question, the Pharaohs of Egypt were royalty and didn't build anything with their own hands. The Pharaos sound like a 50's doo-wop group.

"9) What is the starting time of the 10 óclock news"
We don't have any 10 óclock anything. But we do have TV Nooze at ten o'clock. (Apostrophe, not accent.)


Extra question to collect additional points if you think you haven`t done well so far!

"Here's a list of the countries that the U.S. has bombed since the end of World War II: "

Bonus round: Name all of the illegal military incursions that the US has been officially involved in since WW2, and then name all of the legally declared wars that have been declared by Act of Congress in the same time period. Discussion of the War Powers Act is allowed and encouraged.

"In how many of these instances did a democratic government, ...."
In the 20th Century, name the number of times that governments fell to foreign military occupiers, resulting in a border change, absorbtion, or total government change of any sort. Civil wars, juntas, and similar domestic overthrows by force of arms may also be counted.

Sad state of affairs, isn't it?
__________________
hellosailor is offline   Reply With Quote
Old 20-10-2007, 13:20   #27
Senior Cruiser
 
Alan Wheeler's Avatar

Cruisers Forum Supporter

Join Date: Dec 2003
Location: Marlborough Sounds. New Zealand
Boat: Hartley Tahitian 45ft. Leisure Lady
Posts: 8,038
Images: 102
Quote:
Q48 being a prime example. I still don't get it. Is it that "suction" creates lower pressure that is the equalized by atmospheric pressure pushing air in instead of suction "pulling" air in? Seems like splitting hairs,
Yeah it's a difficult one to get your head around. But if you keep the little saying in the back of your mind, "nature abhores a vacum" it helps. The piston moving down, creates a larger space and thus a lowering of air pressure. The valve opens and the air pressure on the other side is higher. Thus it flows into the chamber to fill the low pressure area. Air can be pressurised infinitly, but can only be "vacumed" till there is nothing. You can't make nothing any more nothing. So assuming the pressure on the outside is ~14PSI or 1 atmosphere, you could say there is a pressure of ~14PSI wanting to flow into the empty chamber. Due to restrictions and speed of piston, the air will never fully be replaced in the chamber and thus will always be working in a slight vacum. To increase the air quantity in the chamber, you need a greater flow of air or higher air pressure on the outside. Hence a turbo or supercharger, multi valves per cylinder, longer cam opening times etc etc.
__________________
Wheels

For God so loved the world..........He didn't send a committee.
Alan Wheeler is offline   Reply With Quote
Old 24-10-2007, 07:36   #28
Registered User
 
Doghouse's Avatar

Join Date: May 2006
Location: Hampton Roads, va
Boat: Catalina 387 - Magical Dreamer
Posts: 176
Images: 1
I'm a computer geek, so I just did it off of logic and got an 84! That was a cool test.
__________________
Doghouse is offline   Reply With Quote
Old 24-10-2007, 11:44   #29
Registered User

Join Date: Feb 2007
Location: Land locked
Boat: NONE yet
Posts: 114
I got a 74% did it real quick tho made a few simple mistakes. I can however tear apart and rebuild almost anything. Maybe I better recheck all the 3 phase electric that I have run and the numerous machines that I have rebuilt in the past few years. HA
__________________
charley is offline   Reply With Quote
Old 24-10-2007, 13:12   #30
Moderator Emeritus
 
GordMay's Avatar

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 31,580
Images: 240
Quote:
Originally Posted by Alan Wheeler View Post
Yeah it's a difficult one to get your head around ...
... You can't make nothing any more nothing ...
Could be a LIFE lesson, in there.
__________________

__________________
Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"



GordMay is offline   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
test only duckie Off Topic Forum 6 06-08-2007 03:40
Test test Forum Tech Support & Site Help 2 30-03-2007 17:31
Mechanical Starters? Gallivanters Engines and Propulsion Systems 23 12-06-2006 19:47



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 03:24.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.