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Conference Room 4 (CR4)Conference Room 4 (CR4)Conference Room 4 (CR4) is a forum for engineers, scientists and technical researchers to discuss engineering news, seek technical help and get answers to burning questions. Articles
Efficiency of Induction Motor
2012-02-11 06:10:00 Which parameters can vary at induction motor terminal to increase its efficiency.
Low Pressure Steam Required for Liquid Chlorine Vaporisation
2012-02-11 06:10:00 Need some guidance to calculate low pressure steam required (2.4 kg/cm2 @ sat.temp) for vaporizing the liquid chlorine from the 1 ton tonners as around 400 kg/hr of chlorine gas at 5 kg/cm2 & 50 deg.C is to be supplied to process plant which is located around 500 mts away from the gassifier.Also
Induction Motor
2012-02-11 06:08:00 Evaluation of energy efficiency of induction motor in application process. (not involve drive or other technology, based on input and output parameters) any ideas......
Which Type of Industry Using PLC
2012-02-11 05:22:00 I am a fresher of this field.Which type of industry using plc system?(for example,water purification,oil,gas like that).
which conection to motor 5hp or above, star or delta in dol
2012-02-11 04:20:00 i have 10 hp and 15 hp motor ,iwant to know if conect it directly to doL starter how should i conect whethere it is star or delta More About: Star
Master Cylinder or Brake Booster?
2012-02-11 00:19:00 I have a 1999 Grand Prix SE 3.1 with 149k on it. Runs great. On the way back home the other night I noticed smoke under my hood. I pulled into the driveway popped the hood and inspected. No coolant leaks, and the smoke or steam was coming from the rear of the engine. With research I thought
Transformer Cooling
2012-02-10 23:54:00 Why the use of distilled water in cooling transformer and how frequently should the water be changed . Also thus distilled water causes corrosion and scales in copper tube bars.
Electrostatic Interference
2012-02-10 23:45:00 Here is another question i have studied long and hard and think i have the correct answer for it,,,,, Electrostatic interference can be nullified by, A: connecting the thermocouple ground to the positive side of the junction. B: twisting and grounding the thermocouple wires. C: shielding and groundi
A Null-Balance Potentiometer
2012-02-10 23:19:00 I am taking a Penn Foster instrumentation course and would like someone to check this question for me. I have studied the book for sometime and would have to say that this would be the correct answer. Question : A null-balance potentiometer indicates the temperature of a thermocouple by,,, A: measur
P/N NE5554U
2012-02-10 21:42:00 Can anyone tell me where I can get some IC's P/N NE5554U? If there is an alternate, you can let me know too. Horace CR4 Admin - phone number removed From the CR4 Rules: Do not post phone numbers or email addresses. The CR4 Admin will delete all phone numbers and email addresses posted in thr
The Chimp Has Better Memory Than Most Human Chumps
2012-02-10 19:31:00 From Gizmodo: The BBC has a new program called Super Smart Animals. In their first episode they showed Ayumu, a chimpanzee that can memorize the location of a random sequence of numbers in less time than it takes a human to blink: sixty milliseconds. Read the whole article
Vega Rocket Set For Maiden Voyage
2012-02-10 19:26:00 From BBC News - Science & Environment: After more than 10 years of development work, Europe's new small satellite launcher is ready for its first flight. Read the whole article
Can Super Glue be Used to Repair Dental Prosthetics?
2012-02-10 19:23:00 My 5 month Puppy broke my dental appliance which fit in the bottom middle between the outer teeth (four teeth on the dental appliance) it was cracked in half and now I cannot wear it. Are there any warnings about the use of super glue ingredients that might put me at risk having used this bonding ma More About: Super
Iran Cuts Off Internet Access
2012-02-10 18:27:00 From CNET News: Regime turns out the lights in advance of reported demonstrations planned for the weekend. Read the whole article
Another Day, Another Google Wallet Hack
2012-02-10 18:27:00 From CNET News: Researchers had just identified a brute-force way to crack Google Wallet PINs, and now there's another--and much easier--way to access a Wallet account. Read the whole article
This Is What Nuking an Earth-Killing Asteroid Looks Like
2012-02-10 17:16:00 From Gizmodo: You might think Armageddon was just a lot of Bruce Willis sobbing and Aerosmith-fueled, but there was actually some truth in there! If an enormous space rock ever heads our way, we're already planning on nuking it. Here's how. Read the whole article
Breaking the Code: Why Yuor Barin Can Raed Tihs
2012-02-10 17:07:00 From Discovery News - Human News: How can our brains decipher even garbled nonsense? A key factor could be context. Read the whole article
What are the Odds ?
2012-02-10 17:02:00 Somebody sent me the following little puzzle. Can anyone help before I go completely insane. After 5 minutes my brain ached too much; If you choose an answer to this question at random, what is the chance you willl be correct ? A) 25% B) 50% C) 60% D) 25%
Vector Group of a Transformer?
2012-02-10 15:23:00 I was studying single line diagram. And saw a Vector group written with the transformer it was Dy11. I couldnt understand it I go through internet but my concepts about vector was not clear kindly tell me what is meant by Dy11 Dy1 Yd11 Yd1.
Feb. 10, 1957: Birth of the Cool...er
2012-02-10 15:19:00 From Wired Top Stories: The foam ice chest is invented. By providing an alternative to the metal ice box, the new lighter material makes it easier to transport chilled soda and beer, and keep those 12-ounce curls moving. Read the whole article More About: Birth
This Is the Center of the Universe: NASA's Deep-Space Command Central
2012-02-10 15:03:00 From Gizmodo: Through technology, we've developed the ability to reach out into the distant corners of the universe. Rovers, orbiters, and deep-space probes. But regardless of how far away from us they extend, they all reach from a single point of origin: Earth. Read the whole artic More About: Nasa
What Do You Use For Car Care?
2012-02-10 15:00:00 Jen and Ryan both make fun of me for not washing my cars very often. Truthfully, I don't like getting the Plymouth wet and the Volvo, well, it's my beater. Also, I've never really had a car with decent paint--'til I got the Mustang, anyhow, which is filthy from being driven during our little snow s More About: Care
Pilot Plant Converts Fruit And Veggie Waste Into Natural Gas For Cars
2012-02-10 14:46:00 From Gizmag Emerging Technology Magazine: Some readers might remember the Mr. Fusion unit in Back to the Future that Doc Brown fills with household garbage, including a banana peel and some beer, to power the iconic time-traveling DeLorean. While we're still some way from such direct mea
USA Leads Global Recovery-Evidence
2012-02-10 14:45:00 Leadership is about action, not potential. Global Purchasing Managers Index (PMI) data shows that it is the USA, not China, that is leading the world out of the slowdown. Here are 5 reasons that PMI data is relevant evidence for your analysis * PMI is a reliable fact-based indicator as opposed More About: Leads
How to Change Varying Voltage From 400-100 Vdc to a Constant 12 or 48 Vdc
2012-02-10 14:43:00 I have a micro hydro turbine that has about 800 ft of wire running at around a max voltage of 400 to 100 vdc however it normally runs at 215 but this depends on the turbines output. I have a grid tied inverter that works when the grid is running however I want a back up system for when the grid is d
PLC Course
2012-02-10 14:05:00 I COMPLETED B.E/Elctronics and instrumentation.how is working PLC in industry?what is the carrier growth in industry,after complete PLC course?
Abot WPS/PQR/WPQ AND SELECTION OF WELDING ELECTRODES OR FILLER WIRE ACCORDI
2012-02-10 12:26:00 FRIENDS, i GOT A JOB OF qa /qC ENGG IN A CONSTRUCTION COMPNAY AND i WOULD LIKE TO KNOW ABOUT THE STEP BY STEP PROCEDURE OF MAKING WPS,PQR,WPQ IN STEEL WELDINGS AND HOW I CAN SELECT THE CORRECT ELECTRODE OR FILLER WIRE FOR THE CORRECT BASE METALS???PLAESE REPLY ME. More About: Welding
Costing Structure Castings
2012-02-10 12:23:00 Dear All, Can anybody provide the Costing structure of Castings (Steel).
Rubber Prosessing Plant
More articles from this author:2012-02-10 12:03:00 What role does a draughtsman play in a rubber processing plant??? What knowledge is a draughtsperson required to have in order to produce effective drawings in a rubber processing plant??? 1, 2, 3, 4, 5, 6, 7 |
