Engineering - January 2007

2007-01-26 17:51:54 · 2 answers · asked by fire 1

2007-01-26 17:35:40 · 6 answers · asked by froigajudo 1

A feed input stream (F) which consists of 35%EtOH and 65%water is channelled into a distillation column. At the lower end of the column, there is an output stream W which consists of 5%EtOH an d 95% water. At the upper end of the column, the stream is passed into a condenser where the distillate W comes out. W consists of 85%EtOH and 15%water.

How do you calculate the kg of D per kg of F and per kg ofW?

Can anyone pls help me. Thanks so much.

2007-01-26 16:51:09 · 1 answers · asked by sky_blue 1

Im doing project in RF based data transmission within short range..for that i thought of using Maxim 1472 & 1473 ic's for transmission & reception..is there any problem in using those ic's? also suggest me if any other good solution for this project..also if it is ok then where & how can i get those chips? kindly provide me enough details as soon as u can...

2007-01-26 16:43:07 · 1 answers · asked by priya d 1

2007-01-26 15:58:42 · 9 answers · asked by kei46animax 1

How Much Do They get paid.
Where can you attain your tower riggers certificate

2007-01-26 15:05:03 · 1 answers · asked by Biggs 1

2007-01-26 14:01:29 · 9 answers · asked by Anonymous

what are the possible effects? thanks. :)

2007-01-26 13:54:21 · 1 answers · asked by _mEdLeY_ 1

Hi my electricity provider charges 12kwH

How much is it costing you to turn my air conditioning (normal air conditioning unit like most that came with the place) on HEAT?

If you don't know..then how much do you pay per month during this time of th eyear? Thanks all

Doing research for scool

SK

2007-01-26 13:07:25 · 2 answers · asked by Anonymous

2007-01-26 12:51:23 · 1 answers · asked by steven 2

Does that mean that when I leave my heat on for my air conditioning for ONE HOUR that it equals 1 KwH ?

SK

2007-01-26 12:38:05 · 9 answers · asked by Anonymous

In an elementary school I recently saw some pvc pipe instruments, which where straight pipes that the kids dropped on the floor to make various notes sound. Does anybody know where I could find some measurements for making these?

2007-01-26 11:46:07 · 2 answers · asked by Jdiggity 2

The role of engineering in disaster relief
We’ve seen war and famine in Africa, the Indian Ocean tsunami, the earthquake in Kashmir … So what are the key areas where engineers contribute to the relief operations in the short and the long term? What criteria should be applied in deciding the level and type of help? Are there ethical issues to be faced? How can UK engineers get involved?

2007-01-26 11:30:46 · 3 answers · asked by marios_tromponi 1

with the right fixture rated to handle 125 watts

2007-01-26 10:48:39 · 9 answers · asked by Nick S 1

what is the highest watt light bulb can you run on a standard bulb

2007-01-26 10:31:49 · 4 answers · asked by Nick S 1

I have a small ride on 6 volt car that I converted to a 12 volt dc motor and two 6 volt batteries in series. The problem I'm having is the car jumps out too fast and the powered wheel spins out. Would I just need a variable resistor to control the motor and slow it down a bit?

2007-01-26 10:28:28 · 5 answers · asked by JimS 1

2007-01-26 10:06:58 · 2 answers · asked by ripvanwinkle 2

I'm currently looking for colleges and am interested in pharmaceuticals and engineering. Can anyone lend an idea to help me decide and start on a good path?

2007-01-26 08:55:15 · 8 answers · asked by Chelsea 1

2007-01-26 08:01:37 · 6 answers · asked by ahmedein46 1

2007-01-26 07:59:13 · 2 answers · asked by jstn_alford 2

Hey folks I need to buy one triangle prism and laser for my science FAIR where can I find and buy these items.Is that any stores or online service.My project due with in 4 days please help me folks.pleaseeeeeeeee.

2007-01-26 07:48:13 · 4 answers · asked by cool 1

what are my other options for work???

I'm not good at CAD, Microstation, Pro/e, FEA, ANSYS, ABAQUS, Unigraphics, and programming work.

2007-01-26 07:18:09 · 7 answers · asked by mark alexander smith 1

both made mistakes in the relationship, my significant other says we can no longer have a physical relationship. For the past 2 months we talk everyday, and they tell me there is no one they would rather spend time with. Is it easy for engineers to just cut off feelings and have a friendship with someone they were in love with? I'm having trouble cutting off my feelings. Help...would love your insight.

2007-01-26 06:58:58 · 6 answers · asked by :-) 2

I want to make a lamp using Luxeon LEDs, up to 50 of them, and I want it to plug in to an AC power outlet. Converting to DC is acceptable of course but I am not sure where to get started on driving these little buggers.

2007-01-26 06:55:10 · 4 answers · asked by Anonymous

I would like to make liquid CO2 in small batches. Are there any relative inexpensive non-commercial size liquid CO2 generator. I imagine it will consist of high pressure compressor coupled with a chiller. Also making it out of surplus used parts/subsystems will be great.

2007-01-26 06:49:31 · 5 answers · asked by lightpulse 4

hello member, To clean stainless steel material by passivation we can do it?

2007-01-26 06:45:52 · 2 answers · asked by Apsar J 1

Materials:
a. Regular paper label (with adhesive),
b. Plastic film surface with repeating U-ribs (surface look like _ _ _ _ _ _ _ ) -dotted line indicated area in contact with paper label.

Paper label will curl on edge with time (indicated no sticking) and peel off easily causing label loss during transportation.

What steps/method recommended?

2007-01-26 06:44:54 · 1 answers · asked by kk 1

2007-01-26 06:23:20 · 40 answers · asked by DD 1

We are working on a display in the local museum that will allow students to dial a number or numbers on an antique rotary phone and hear a digital recording of historical interviews. Can anyone help us figure out the technological interfaces needed to go from the rotary click to trigger an MP3 player with the interviews? Thank you.

2007-01-26 06:11:51 · 6 answers · asked by Scott D 1

a ball is thrown downward from the top of a buliding with an initial speed of 25 m/s. it strikes the ground after 2.0 seconds. how high is the building.
A) 50 m
B)70 m
C)30 m
D) 20 m

2007-01-26 05:58:03 · 3 answers · asked by Julie Kim 1