Engineering - April 2007

How do I make a circuit that I can press a button and a horn goes off

2007-04-10 03:09:42 · 2 answers · asked by cool man 2

2007-04-10 03:03:11 · 7 answers · asked by Anonymous

That doesn't use the metric system? I remember back in the 70's there was a move to get the U.S. in line with the rest of the world regarding measurements.
Why have we not converted?

2007-04-10 02:57:18 · 21 answers · asked by wwpetcemetery 5

I did not fine any free web-site for asking my technical questions about PLC would you tell me one?

2007-04-10 02:54:15 · 1 answers · asked by Amin 2

2007-04-10 02:53:57 · 2 answers · asked by morajaa 1

2007-04-10 02:44:15 · 6 answers · asked by Anonymous

i would prefer a line diagram of the air conditoning plant together with the complete calculation for that plant.

2007-04-10 01:54:37 · 2 answers · asked by johnny o 1

is PID controller an integrated circuit?I have not seen a picture of it before,but i've heard so much of it.

2007-04-10 01:15:00 · 6 answers · asked by Ekot-uyo 1

2007-04-09 22:12:11 · 18 answers · asked by jammy 4

Given that a = 2i + j and b= i + 3 j

Please show the calculations .

2007-04-09 21:59:13 · 3 answers · asked by ela kolla 2

Can you extinguish a diesel fire using water, not a diesel tank on fire, but a pool of diesel , say 3m x 3m size ??

2007-04-09 18:57:15 · 5 answers · asked by Norm 1

You go through the first set of doors and you're in a tiny little room. There's usually a heavy duty weather mat. In cold weather the heat is blasting. Then you go through a second set and you're in the building - it's usually a business of some nature. The doors are glass. Sometimes automatic, sometimes not.


What is that one little room in between both sets of doors actually called?

(I had NO idea where to put this question)

2007-04-09 16:19:31 · 10 answers · asked by ? 6

want to sell the invention idea,have had it since 1967,had a prototype stolen, can't get the money to get patented,so want to sell it,and let someone else patent it that has the money or go into a partnership/sharing relation(they finance to get it patented and another prototype built and put into acar.

2007-04-09 15:10:54 · 5 answers · asked by Earl M 1

If you answer the question could you please show the work.

2007-04-09 15:05:47 · 4 answers · asked by Healy2006 2

2007-04-09 14:07:17 · 5 answers · asked by johnh39 1

I never saw anything wrong with the standard post agitators as long as I didn't overload the tub, and they didn't take up as much space in the tub because they didn't have auger fins.

2007-04-09 13:13:13 · 3 answers · asked by Anonymous

2007-04-09 13:02:04 · 5 answers · asked by Jon M 3

2007-04-09 12:50:29 · 5 answers · asked by Ayan 1

Something developed by an engineer... 040907 6:03

2007-04-09 12:05:56 · 15 answers · asked by YRofTexas 6

i was just wondering How to make a vandergraph generater because we had 1 in science class the other day so i was just wondering. thanks

2007-04-09 12:04:09 · 2 answers · asked by BRIAN!! 2

The reason for my question is because I have a trailer frame 8'-6" x 36' being fabricated for me. The weight load will be approximately 10,000-15,000 lbs. The individual decided to use 4" steel channel 1/4" thick as the main beams and 3" channel for the cross members. Due to the extreme length of the trailer the individual has found a sagging issue within the middle of the main beams. He realizes now that he should have probably used 8" channel instead. Since the fabrication is so far ahead he concurred to double up with another 4" channel directly below the first to reinforce the strength due to it's length. I would like to know if this will make the frame even stronger that a 8" channel 1/4" thick.

2007-04-09 11:41:25 · 4 answers · asked by Tammy 2

I live in USA, and it is very common for AC plugs to have holes in the prongs. Does anyone know why? Is this common in other countries as well?

2007-04-09 11:38:44 · 2 answers · asked by Roy E 4

Why do they make manhole's round?

2007-04-09 10:22:02 · 12 answers · asked by MattyG 3

2007-04-09 09:46:59 · 4 answers · asked by Svetlana D 1

2007-04-09 09:46:02 · 6 answers · asked by Jamie W 1

2007-04-09 09:28:32 · 3 answers · asked by Alicia <3 2

Basically designing an olefins plants...lots of distillation towers and pumps...need to determine the pressure drop of control valves.

Told 30-60% of variable pressure drop = control valve pressure drop
Also Variable pressure drop is NOT..... ro*g*h

So i was told though that is the defintion of variable pressure drop.....not sure what to use

thanks

2007-04-09 08:55:16 · 2 answers · asked by My name is not bruce 7

2007-04-09 08:39:38 · 4 answers · asked by That'sINTENSE! 4

The Chorus goes "if i could be like that" it plays after Jim leaves nadia and interupts the concert at band camp

2007-04-09 06:54:00 · 3 answers · asked by Dustan B 2

2007-04-09 06:18:52 · 4 answers · asked by Ace 1