Engineering - March 2007

i mean how much money does the electrical utility consider for load shedding (for 1kilo watt) in USA?

2007-03-08 01:18:22 · 1 answers · asked by farhangirad 1

2007-03-08 00:55:29 · 1 answers · asked by defknight09 1

2007-03-08 00:53:32 · 5 answers · asked by David Junior 3

2007-03-07 23:58:22 · 1 answers · asked by Anonymous

Just something that kind of interested me. I visited Mount Isa, Australia a while back and saw the mine there. The guide explained that they would drill holes into the rock in a set pattern, and fill them with explosives. These, when set off, would shatter the rock, the debris would be cleared, the proccess would be repeated, and slowly a tunnel through the rock would emerge. I was wondering if anyone knows how this method compares- in terms of speed- to the big tunnel boring machines, like they used to dig under the Channel from England to France.
Thanks!

2007-03-07 23:24:36 · 4 answers · asked by Veregere 2

an improperly designed (unbalanced) two hood ventilation system is built. What physically will occur when the fan is turned on. What possible effect could this have on wmployees?

2007-03-07 23:18:31 · 1 answers · asked by Anonymous

2007-03-07 23:01:25 · 7 answers · asked by Anonymous

2007-03-07 22:57:12 · 3 answers · asked by ashit 1

2007-03-07 22:29:23 · 6 answers · asked by Anonymous

2007-03-07 20:56:23 · 5 answers · asked by mohammad_rouhbakhsh 1

i am EC engineer.

2007-03-07 20:37:40 · 1 answers · asked by iqram h 1

2007-03-07 19:56:45 · 8 answers · asked by Sanwi 3

2007-03-07 19:56:30 · 2 answers · asked by jeheil 1

Can anybody suggest me a machine or method which can be used to cut the ice slab into unifrom size ice cubes. Ice slab size is 50cm x 40cm x 50mm cube size required is 40mm x 40mm x50mm

2007-03-07 19:51:42 · 1 answers · asked by satis50 1

how do chemical engineers work? do they test what they've created themselves? does this job require testing on animals?

2007-03-07 19:28:08 · 4 answers · asked by Janelle L 2

I have a prototype of a device which intends to improve the original one. I need to get the accuracy of my prototype based on the the original. The output for every trial is actually whether passed or failed and not an actual value. How can I get the accuracy and what statistical method should I use?

2007-03-07 19:13:33 · 1 answers · asked by fong 1

Did telegraph cables (cables placed underwater in order to guide steam ships) evolve into the internet and other modern cables ?
sources if possible please. thanks

2007-03-07 18:50:24 · 1 answers · asked by rakham22 1

How are satellites and spacecraft communicated with and controlled.. Is it all based on an IP network? Like lets say the cassini spacecraft. They just point their radio dishes at it and start sending IP packets? I really have no clue how satellite communications work!

2007-03-07 18:45:50 · 4 answers · asked by Fancy Mc Pants 1

2007-03-07 18:40:05 · 1 answers · asked by cherylyn p 1

2007-03-07 18:23:42 · 2 answers · asked by jay 2

He is weak in maths and physics but prefers to take up science, Pl. also suggest good polytechnics which have excellent hostel facilities, in India.

2007-03-07 17:49:53 · 4 answers · asked by Divya 1

I have made a bridge rectifier using a transformer of specification 12V 6A, and in the bridge I have used 1A diode, My question is that why does not the diode explodes and what is the power I am getting at the output.

2007-03-07 17:46:15 · 4 answers · asked by Kasprov 1

I HAVE JUST APPEARED IN 12TH EXAMS AND FILLED FOR ABOVE EXAMS.

2007-03-07 17:42:02 · 6 answers · asked by star 1

I still have alot of time before i graduate high school, but i really want to be a car mechanic and my stepmom wants me to do paint jobs with cars cuz im a good artist. So what would be the best college for it.. and could teach how to fix up old and new cars?

2007-03-07 17:33:52 · 1 answers · asked by .Loser.Liz. 1

2007-03-07 17:00:32 · 5 answers · asked by dencio 1

i have two motors one 12V 10A, another one 40V 10A. Can anyone recommend me how do i split one power unit to both motors if i had one 40V 10Ah? what happens if the Ah for the battery is more than 10Ah(40V 20Ah)?

2007-03-07 16:59:40 · 2 answers · asked by Anonymous

2007-03-07 16:42:31 · 1 answers · asked by jpat_14 1

Any liquid, tablet or colorless/odorless chemical that can be mixed with liquid to make it appear like boiling?

Mixture should not be harmful to skin or nose.

Readily accessible materials.

2007-03-07 16:31:00 · 4 answers · asked by mher 1

Should not touch or drop or hit the wine glass.
Should not jerk the glass.
There must be no noisy gadget to use.
Glass will rest on a plate, or book, or any holder.

2007-03-07 16:17:53 · 7 answers · asked by mher 1

So, I would like to purchase a 10,000mah battery pack. But the pack is only able to handle 40amps continuos. So I do not waste money I'm trying to figure out what I am currently using amp wise.

So here is my math.
4200mah=4.2 amph hours.
So this 4.2 amp pack would last an hour if there was a continuos 4.2 amp load.
At 8.4 amps continous this pack would last 1/2 hour.
At 16.8 amps continuos this pack would last 15 minutes.
Since my current 4.2amp pack lasts for 12 minutes about, then I'm probably only pulling 20 amps continuos through this pack?

So it would be safe to use the 10,000mah pack since it is rated at double the continuos load.

The reason for my doubt, is this electric motor was supposed to be able to draw 80amps continuos.

Since I have room to play with Amp load, I could add a couple of cells to the pack, go from 7.2volts to 9.6v and also put a faster gear on the motor, while still being safe in the 40amps continuos range?

Watts you think?

2007-03-07 16:15:50 · 3 answers · asked by Anonymous