Engineering - June 2007

When condensate comes off a heat pump, or any steam-based mechanical equipment, condensate is generated. Why is the condensate corrosive?

2007-06-14 11:22:18 · 3 answers · asked by D-Money 2

2007-06-14 11:02:41 · 2 answers · asked by ron44 2

and you get bored and start breaking all the light bulbs, would you die in a vacuum?

2007-06-14 10:33:53 · 8 answers · asked by Brian C.K. 5

A recent report said the Space Staion had 240 sq ft of solar panels. They said it was enough to supply 40 average homes with electricity. Frige, TV's, air conditioning, lights and heat. 40 homes! 240 sq ft! That means a 6 sq ft solar panel on my roof should do the job I'm paying the electric co. hundreds a month for. What gives?

2007-06-14 10:16:16 · 7 answers · asked by Don S 2

I would like to create a simple circuit where a couple double aa's charge a capacitor then use the capacitor to briefly power a 3v led. I guess i need to know how much capacitance I need and also a basic idea of how you charge both side of the capacitor with batteries.

2007-06-14 10:11:00 · 4 answers · asked by Zak G 1

2007-06-14 09:42:10 · 4 answers · asked by vaj 1

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these values of e are binnary , and they are numbered from 0-7

2007-06-14 09:24:19 · 2 answers · asked by capa myca 3

2007-06-14 07:12:17 · 7 answers · asked by Anonymous

Computers (as I understand them) operate based on an off/on behavior, aka base 2, as does most other "digital" equipment. The reason for this limitation is because a component (transistor) can be either on, or off. Same for fiber optics - there is either a pulse of light, or a lack of light.

Wouldn't things be faster and more advanced if you could operate things on a base 5, 10, 20, or higher?
For example, instead of fiber optics sending pulses of light, have a type of variable wavelength laser, which could produce 8-256 or more different colors based on the laser's wavelength. Of course they would have to develop the technology to both send and receive the beams... but it could be done. Imagine how much faster electronics with microprocessors would be!

The question is, why hasn't it been done yet (or has it?) What are the current drawbacks (besides the lack of hardware)?

2007-06-14 07:07:16 · 11 answers · asked by stevepg82 2

To say the truth, this question is always a challenge. In an interview, somebody asks you why you choose electrical Engineering, what would be the best answer? Thanks in Advance

2007-06-14 06:57:20 · 12 answers · asked by lion 1

2007-06-14 06:48:45 · 6 answers · asked by drebs04 1

2007-06-14 06:42:16 · 11 answers · asked by mr. me 2

2007-06-14 06:38:24 · 5 answers · asked by rahulkumarny 1

I am talking in context of steam generators or boilers. In boilers three fuels are usually used( although there are many other that are used also): pulverized coal, oil and natural gas.

Can you tell which one of the above is being burnt in the furnace or combustion chamber of a boiler by observing just the flue gases?

2007-06-14 06:10:48 · 2 answers · asked by Muhammad Ali 2

I got the answer "A galvanic cell is an electrochemical cell that stores energy and makes it available in electrical form. A battery is a string of two o more cell in series. An accumulator is an apparatus by means of which energy can be stored. It is a RECHARGEABLE battery"..........so why a battery is not rechargeable and an accumulator is? Is an accumulator capable of producing electricity like the battery, just assemble it and that's it?

2007-06-14 05:51:29 · 3 answers · asked by Mark N 2

what kind of box can I make to put an egg in and then drop it from the 4th floor of a building and the egg be protected enough not to break? also this box needs to be as cheap as posible.

2007-06-14 05:27:11 · 12 answers · asked by Anonymous

2007-06-14 05:22:21 · 8 answers · asked by visheshonthenet 2

2007-06-14 05:20:29 · 4 answers · asked by Anonymous

2007-06-14 04:57:34 · 5 answers · asked by sankar g 1

Okay, I have a futon, if anyone else does, they know it's a pain in the a-- to get it to turn from couch-mode back to bed-mode and back again, so I wanted to design a simple machine to attach to the bottom of my futon to push and pull, or twist, on the futon, to turn it into the bed then couch, then back again, as needed, understand what I mean?

Okay, I have TWO questions on this, answer either of them and It'd be much appreciated, thank you...

1- Could someone help me as to understand HOW I would go about making a mechanical contraption to do the above? Note that I have very little knowledge in electronics, more of a software man myself...

2- Could someone direct me to a piece of software that could help me to do this? And I don't mean electronic how-to's, I mean a program which I could model and build this project in then understand how to build the project myself.

2007-06-14 04:47:41 · 5 answers · asked by Anonymous

2007-06-14 04:36:03 · 1 answers · asked by glugorian2 1

2007-06-14 04:30:53 · 2 answers · asked by sudarshan 2

i m frm genral caste. my state rank in rajasthan is 6400. i m in sure urgency wich way to go...
also confuse, whether i shud switch to mech. or sum other field instead of elec. in order to get a better college...?,,,...?...

2007-06-14 04:29:19 · 3 answers · asked by shreevatsa j 1

2007-06-14 04:26:15 · 5 answers · asked by Anonymous

2007-06-14 04:22:57 · 1 answers · asked by sups 1

what are those tests

2007-06-14 04:09:42 · 4 answers · asked by Worm Brain 2

Anybody working in a machine shop to-day?

2007-06-14 03:27:17 · 3 answers · asked by CHERYL B 1

I'd like to build a system that can deliver a stream of droplets of water that I could turn on or off and control the speed using a computer. Ideally I'd also have control over both droplet size and the rate of droplet formation. The aim is to simulate rain.

2007-06-14 02:33:10 · 5 answers · asked by Damian S 1

2007-06-14 02:17:31 · 3 answers · asked by missvictoria30 5

2007-06-14 01:50:52 · 5 answers · asked by Gladys R 1