Engineering - December 2007

2007-12-03 22:33:24 · 4 answers · asked by Anonymous

i wanna know if fluid was liquid that material of pipe is selected stainless steel (321) and design temperature was 350 c and design pressure was 25 barg , would you tell me that what would test pressure be?

2007-12-03 19:11:40 · 2 answers · asked by ? 2

2007-12-03 18:24:03 · 6 answers · asked by deepak_8584 1

I am the TA for the electric machines laboratory course at The Ohio State University.

One of the things I enjoy doing when I teach this lab is to bring in demonstrations of motors/gens or magnetism that have a certain "cool factor" (eg: an electromagnet that can lift 50lbs). I also like to give out "optional reading" links to websites with useful or practical information related to the course topics.

So, the type of website I am looking for is something that is pretty easy reading and contains primarily conceptual information. A website that has flash animations or GIFs that show concepts would be great as well.

I am looking for something like these sites:
http://my.execpc.com/~rhoadley/magindex.htm
http://www.wvic.com/how-gen-works.htm

Thanks!

2007-12-03 16:20:04 · 1 answers · asked by Ubi 5

If i have an area of a circle A=(piD^2)/4 and i calculate 1/A=4/piD^2. Then what is uncertainty of 1/A? d(1/A)

Can someone please help me.

2007-12-03 16:04:05 · 1 answers · asked by I S 1

like the number of step it takes to complete one rotation

2007-12-03 16:03:02 · 5 answers · asked by Pradeep 1

its needs to be able to fit into something similar to a shoe box

2007-12-03 15:16:35 · 4 answers · asked by Anonymous

how the addition of integral control improves the signal?

2007-12-03 13:53:32 · 3 answers · asked by David Junior 3

2007-12-03 11:01:22 · 4 answers · asked by jezuarphilippe 1

please list sources

2007-12-03 10:57:03 · 7 answers · asked by Anonymous

It should involve a switch to press

2007-12-03 09:43:11 · 1 answers · asked by Anonymous

I have two 8Ω resistors in series with two 33Ω resistors in parallel. (3-V power source)
a.) How much current flowing across each resistor?
b.) What is the voltage across each resistor?
Thanks

2007-12-03 09:34:40 · 3 answers · asked by Anonymous

2007-12-03 09:22:34 · 3 answers · asked by Anonymous

Some ball bearings are tiny, yet they are all perfectly round and the same size. How is it done?

2007-12-03 09:12:07 · 8 answers · asked by patrick j 1

I have a 3.0 V power source and bulbs set up in series, parallel, and series/parallel circuits.

Will the voltage across each resistor be the same or different if the resistors are in a:
a) series circuit
b) series/parallel circuit
c) parallel circuit

2007-12-03 09:12:05 · 3 answers · asked by Anonymous

The windpipe of a typical whooping crane is about 5.3 feet long. What is the lowest resonant frequency of this pipe, assuming that it is closed at one end? (Assume a temperature of 35°C.)

2007-12-03 08:08:36 · 1 answers · asked by Anna H 2

Will the current in a light bulb connected to a 220-V source be greater or less than the current in the same bulb when it is connected to a 110-V source?

2007-12-03 07:52:17 · 9 answers · asked by Anonymous

What would be AI mathematics ?

2007-12-03 07:29:17 · 3 answers · asked by T C 1

Your friend says that a battery supplies the electrons in an electric circuit. Do you agree or disagree? Defend your answer.

2007-12-03 07:08:10 · 5 answers · asked by Anonymous

2007-12-03 07:04:19 · 5 answers · asked by stevan k 1

2007-12-03 05:05:27 · 1 answers · asked by shredder87 2

Im confused because lots of people say 220V and some say 240V are these the same just one persons saying the rms and the other is saying the peak

2007-12-03 03:14:37 · 3 answers · asked by Anonymous

Explain how the PCM works. Why is it enough to receive a transmission of at least 56kbps to listen to music over the Internet? Does this transmission rate violate Nyquist theorem? Justify the answer. the bandwidth of a public telephone line is about 4KHz

2007-12-03 02:18:30 · 1 answers · asked by Anonymous

2007-12-03 01:55:33 · 1 answers · asked by Chris L 1

What metal fabrication is....?

The only definition I can think of would be:

Taking two peices of metal and forming one. Is that correct?

2007-12-03 01:23:04 · 4 answers · asked by Grants a tractor luvr! 6

In the power transformer we usually use the tap changer in 5 steps (-5, -2.5, 0, +2.5, +5) on primary side at off load.

the question:
1- why it is 5 steps?
2- why it is in the primary side? if it is on secondary side, is true?
3- why it is at off load?

thankyou very much

2007-12-03 01:09:37 · 4 answers · asked by AtheelKK 1

2007-12-03 00:12:20 · 2 answers · asked by Nouf 1

ITS urgent

2007-12-02 23:16:59 · 4 answers · asked by Anonymous

what is the relation betwen the glucose concentration and the the wave legth of the detected light by the PD after IR spectroscopy if we use the infrared spectroscopy to deteced the glucose of the blood

2007-12-02 21:55:34 · 1 answers · asked by alisa w 1

Can any of you define the difference between a spectacle blind and a spade blind and are there any good website links where I can get more information?
Thanx

2007-12-02 21:43:34 · 3 answers · asked by ipoian 5