Engineering - August 2007

they claim they use 3 watts of electricty or 25 watts and so on but is there something hidden ab out the light bulb that doesnt really save electricty compaared to a standard light bulb that would use 60 watts of electricity

2007-08-26 04:40:46 · 6 answers · asked by michaeljustussvcc 1

2007-08-26 04:32:56 · 3 answers · asked by Alwyn F 1

2007-08-26 04:32:16 · 2 answers · asked by 'Ya 1

Is it 100% "foolproof" to use an elevator? I've always assumed that if for some reason the elevator I was in started plunging to the ground, some sort of safety brakes would kick in and save me. Is this or is this not the case? Are there safety brakes? If there are, how many floors would it take before they actually pulled up the elevator?

2007-08-26 04:14:05 · 3 answers · asked by michael 2

2007-08-26 04:00:38 · 10 answers · asked by sheslioness 1

I have read Joseph swan from UK was the first.

2007-08-25 23:45:45 · 15 answers · asked by tops 1

2007-08-25 18:22:16 · 4 answers · asked by infochetan 1

It seems to me that the motor is in the back and the top doesn't generate heat, therefore there is no reason to believe that leaving a few items on top of the refrigerator would generate more heat and CO2 output.
I don't like taking things at face value, so if anyone has any reasons as to why this might be so I'd appreciate any links and explanations you may offer. Thank you.

2007-08-25 15:27:25 · 5 answers · asked by Prometheus 4

Hi,
Does a building made of concrete susceptible to fire? I mean is the concrete flammable/combustible material or is a fire-proof material?
Thanks

2007-08-25 14:25:20 · 6 answers · asked by learner 1

My electric bill has usually been about 90 dollars, until this month it jumped to 263 dollars. Before it jumped there was a problem with the transformer on the pole and the power company had to come work on it, Is there something that could have happened to cause the Air conditioner to use more power then normal? If I turn it on I cant watch the wheel go around on the power meter it while it is on it makes a revolution about every second, but when its off its about 2-3 secs per revolution. What would cause my sudden jump in power usage?

2007-08-25 13:33:04 · 4 answers · asked by funkymonkey 2

the engineer report said it needed major work, so why did the politicians not put the money out to fix it?

2007-08-25 13:30:31 · 9 answers · asked by pretzelman5000 2

2007-08-25 13:07:39 · 5 answers · asked by zimmyslady 2

The voltage regulator has a 110v output plug. The output total is labeled 0.5 kva. I do not have a "step-up, step-down" converter that goes to 1300 watts so I am wondering if this gadget can do the job.

2007-08-25 11:44:54 · 9 answers · asked by Karl V 1

I want to know if a glass smith, or anyone, or anything, can get rid of cracks in a mirror. I'd imagine no, but.. even though I don't know much about the subject, it seems like they could just melt parts of the glass so it bonds with itself again, then cool it off so it resolidifies as one piece with no cracks.. am I missing a key obstacle here or what? thanks.

2007-08-25 10:39:56 · 4 answers · asked by Super Shane 64 3

Excitation requirement (maximum) is 125KW, 210V. Can the short circuit ratio of this generator be calculated with the available information? If yes, what is the value?

2007-08-25 09:46:30 · 1 answers · asked by Owen E 1

Earthships are the houses built by using every kind of recycable product. Instead of cement foundation, they use packed tires and dirt ect. Also, what else do people who build these homes build? Thank you.

2007-08-25 09:25:23 · 3 answers · asked by Anonymous

When atmosphere temperature is lesser,Freezing of the Ammonia Cylinders is Observed

2007-08-25 08:43:26 · 3 answers · asked by kittyclever 1

Can someone tell me the details of number which are used in IC's.Why are these numbers used.
Eg. Opamp 741,.

2007-08-25 06:58:22 · 2 answers · asked by Khwaja 2

Radio Shack?
Circuit board types, is there only one kind?
What Do I need to learn about Transitors Resistors, compasitors ect ect...?
What I need to know if I want to be serious about engineering electronics, or simply to modify an electronic component?

Thanks.

2007-08-25 06:44:14 · 2 answers · asked by Anonymous

2007-08-25 04:24:30 · 6 answers · asked by Thuy 1

2007-08-25 03:56:16 · 2 answers · asked by lili 2

Plz. Help me in finding out Project Management Course in mumbai for Mechanical Engineer.

2007-08-25 03:10:26 · 3 answers · asked by Hemant Kumar 1

Any exams for engineering students

2007-08-25 01:23:16 · 7 answers · asked by vanitha v 1

2007-08-24 20:44:12 · 1 answers · asked by zara 1

2007-08-24 20:39:09 · 7 answers · asked by koh_arian 2

2007-08-24 20:37:01 · 2 answers · asked by koh_arian 2

2007-08-24 19:32:56 · 11 answers · asked by cookiesmom 7

2007-08-24 19:05:39 · 3 answers · asked by arul k 1

2007-08-24 19:00:36 · 7 answers · asked by koh_arian 2

2007-08-24 18:30:18 · 6 answers · asked by creatureofmars 1