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Engineering - November 2006

[Selected]: All categories Science & Mathematics Engineering

the system works thus:- turbine, up pipe, plemun chamber throttle bodies...

2006-11-10 07:57:11 · 1 answers · asked by Anonymous

2006-11-10 07:48:11 · 8 answers · asked by STORMY K 3

2006-11-10 07:43:21 · 4 answers · asked by Anonymous

2006-11-10 07:37:05 · 13 answers · asked by STORMY K 3

As we all know, some inventions and scientific discoveries have been done by scientists since the time of our civilization. Some inventions such as airplane, IC, transistor, radar, computers and laser were great and the highest level ones. How long ( years )approximately did they take to finally develop such great things after the date their creative sparks began in their minds? What do you think? I know that they vary on the situation may be 10 years or 20 years. I just want to know average years they took for these inventions. Could you help me?

2006-11-10 06:56:55 · 2 answers · asked by little rabbit 1

a. resistance
b. voltage
d. current

2006-11-10 06:04:28 · 3 answers · asked by Illusion 1

2006-11-10 05:57:06 · 9 answers · asked by cochran_518 1

like whats the cheapest we could do it? what equipment would we need?

2006-11-10 05:55:23 · 5 answers · asked by shakira 4

I have no idea what any of these parts are, and the diagram is somewhat confusing. Could someone please explain this to me. Now I wish I had taken electric instead of masonry in high school, haha. Thanks.

2006-11-10 05:50:20 · 1 answers · asked by Anonymous

i need a website please .. or can u tell me where i can find a 220volt , 20Kw generator ..

2006-11-10 05:25:46 · 3 answers · asked by magnum b 1

about equipment protection such as water spray system , foam ,etc

2006-11-10 05:09:02 · 1 answers · asked by chemical engineer 1

I am wondering: How can the signal of my remote controll reach the TV if it is actually an infrared signal? Do I have some different technologie? Can I not buy one of these fancy remote controller that work with every TV?

Thanks for helping out, you save my Xmas

2006-11-10 04:30:47 · 4 answers · asked by Mensis 1

2006-11-10 04:23:19 · 2 answers · asked by Krishna K 1

2006-11-10 04:09:19 · 5 answers · asked by Shona R 2

2006-11-10 02:52:06 · 1 answers · asked by Adrian P 1

For homework

2006-11-10 01:52:43 · 6 answers · asked by GordonGekko 1

2006-11-10 01:28:52 · 2 answers · asked by kaya r 1

In port injection or direct injection system the engine is started using either starter motor or by kick start. During kick start the engine may rotate in opposite direction at engine state cranking. Why it is happening?

2006-11-09 23:59:30 · 3 answers · asked by arthi j 1

how i calculate current of cable.as example-1 sq mm cable current is about 10 amp.how i calculate current of 95 sq mm cale etc....

2006-11-09 23:02:39 · 7 answers · asked by niranjan s 1

In the past in Australia we needed to place a contactor before the drive because you couldn't use electronics to isolate the motor and it wouldn't be classed as off without the contactor. Whats the UK regulations or standard?

2006-11-09 21:18:54 · 2 answers · asked by Aussie_Matt 1

what is the difference between CD74HC4067 and CD4067
not to sure on the 74H vs just 4000 series. This is being used to multiplex multiple switches to a micro controller.

2006-11-09 20:37:37 · 4 answers · asked by Anonymous

2006-11-09 20:17:18 · 4 answers · asked by inkspirations@sbcglobal.net 1

2006-11-09 19:13:20 · 7 answers · asked by jas_miller45 2

I guess I'm asking, what is everyone's second choice at an engineering institution?

2006-11-09 18:56:29 · 9 answers · asked by C.C. 4

Suppose that we have a simple rc circuit , a dc source (V), a switch, a bobin (L) and a resistance (R) connected serial respectively, in steady state, current is V/R.
(V/R.(1-exp(-t.R/L) ). When we open the switch at t=0, current and voltages will change according to the following equations,

Current =V/R . exp(-t.R/L) and voltage drop across the bobin= - V. Exp(-t.R/L).

As seen very clearly, voltage drop across the bobin can not be higher than source voltage V, but we know very well that the instant we open the switch there are huge voltage spikes (10-20 times as high as the source voltage) across the bobin, so what is the problem with these equations that the spikes are not seen in these equations ? Of course one can say that “voltage across a bobin is L. di/dt at any time, you begin to open the switch at t=0, and the switch is open at t=0+ , so dt = 0+ - 0 which is very very small, and so L.di/dt is very very high.” Yes. But the equations given before is valid from t=0, right? I think Laplace transfroms is not enough to solve this problem.

2006-11-09 18:24:36 · 2 answers · asked by akg_dnn 2

can anybody help me research the disadvantages of coal as an energy source??? i tried every search engine and encyclopedia and nothing is relating to the topic please help!

2006-11-09 18:15:13 · 5 answers · asked by galaxypop123 1

2006-11-09 17:43:26 · 9 answers · asked by Anonymous

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