Name the methods by which D20 leak can be detected. 

1 Answer

Answer :

a. By beetles.

b. D20 losses through stack monitoring.

c. Tritium monitoring.

d. In heat exchangers the leakage can be found by taking samples of process water

from all heat exchanges and counting the tritium activity. 

Related questions

Description : Name the D20 recovery methods. 

Last Answer : a. Manual mopping and vacuum cleaning. b. Active drainage recovery. c. Vacuum mopping recovery. d. Dryers recovery. e. Vapour recovery. 

Description : Name the features for reducing D20 leaks. 

Last Answer : a. Reduce valves and fittings in the pipelines. b. Use welded joints instead of flanged joint. 

Description : Why spillage of D20 is to be avoided?

Last Answer : Cost consideration: D20 very costly and very valuable. Cleaning of spillage also cost and extra manpower to be deployed.  Tritium hazard: D20 contains tritium, which when spilled becomes tritiated vapour and finds access through human body. Tritium is a radioactive material. It is a beta emitter. 

Description : Define reactor grade and down graded D20.

Last Answer : Reactor grade D20: If the isotopic purity of a given D20 is more than or equal to 99.7% then the D20 is reactor grade D20.  Down grade D20: If the isotopic purity of a given D20 is less than 99.7% then the D20 is downgraded. 

Description : What is the amount of D20 used in moderator?

Last Answer : 140 tonnes.  

Description : How D20 vapour is recovered? 

Last Answer : Dryer recovers D20 vapour.  

Description : The effective size of particles of soil is denoted by (A) D10 (B) D20 (C) D30 (D) D60

Last Answer : (A) D10

Description : What are some common methods for helium leak testing a vacuum system?

Last Answer : It is common to have a location in the suction line of the pump to detect the helium. Then, the helium source is passed over the flanges and other possible sources of leakage. This is done while ... you can install an IR unit to the suction of the pump and spray isopropyl alcohol on the flanges.

Description : The following statement(s) is/are true concerning newer detection methods of systemic infection. a. Enzyme-linked immunosorbent assay (ELISA) is a rapid immunologic assay used for ... detected using advanced molecular techniques include cytomegalovirus (CMV) and human immunodeficiency virus (HIV)

Last Answer : Answer: a, b, c, d Although the classic detection of infection based on clinical signs of infection and bacterial culture remain the most common clinical tools, increasing ... including CMV and HIV. Furthermore, preliminary investigations into possible detection of fungal pathogens are underway

Description : One of the generator bearing shells is generally insulated from the end housing in order to prevent _____________. A. rapid brush wear B. residual magnetism leak off C. excessive field winding heat D. circulation of shaft currents

Last Answer : Answer: D

Description : An open occurring within the field rheostat of an AC generator can be detected by short circuiting its terminals and observing a ____________. A. negative deflection of the wattmeter pointer B. ... of the wattmeter pointer C. buildup of alternator voltage D. low, but constant alternator voltage

Last Answer : Answer: C

Description : A shorted armature coil in a DC motor can be detected by _____________. A. sparking at the brushes B. shiny armature coil C. worn grooves in the armature D. undercut mica

Last Answer : Answer: A

Description : When troubleshooting a lead-acid storage battery, a weak or dead cell is best detected by _________________. A. measuring and comparing all cells' specific gravity B. taking an open circuit ... electrolyte levels of each cell D. taking each cell's temperature with a calibrated mercury thermometer

Last Answer : Answer: A

Description : A ground in an electrical circuit outside the engine room _____________. A. cannot be detected under normal conditions B. is of no consequence to engineering personnel C. is indicated at the branch circuit breaker panel D. is indicated by the ground detecting lamps on the main switchboard

Last Answer : Answer: D

Description : How the liquid in generator can be detected? 

Last Answer : There are three liquid detection devices provided for the same purpose.  

Description : Do I have a roof leak and can I test with this meter?

Last Answer : No meter is used. Any roofer or inspector climbs into the attic and looks for water stains on the underside of the roof to determine if there is a leak and where it is.

Description : If you try to search Spontaneous Cerebro-Spinal Fluid Leak" how do you search it?

Last Answer : Searching on “spontaneous cerebrospinal fluid leak” brought up several valid results for me.

Description : I want to claim water damage from a leak in my house. I've heard this is a red flag for ever selling your house. Is this true?

Last Answer : answer:It does have to get disclosed. even if it is fully repaired, etc., it has to be disclosed. It’s only an issue when buyers can be picky. In Northern California right now it would be ignored as long as the dry rot inspection cleared with no concerns.

Description : What would make an acrylic fish tank leak intermittently?

Last Answer : answer:I think you probably have a micro-fracture. I found a forum that talks about that; http://www.reefcentral.com/forums/showthread.php?t=1920273 Maybe a coat of clear non-toxic ... univ&tbm=shop&tbo=u&sa=X&ei=3FMwUsS4KOjF2AWXyYAQ&ved=0CDoQsxg&biw=1920&bih=977 That's all I got. I hope it helps?

Description : What makes a glass coffee pot with attached lid leak when you pour it?

Last Answer : answer:Well, since water finds its own level, there is clearly a leak somewhere. A crack doesn’t have to be very wide to allow fluid to leak through. If you don’t want to spend any more energy on the mystery, throw the pot out and buy a new one. A hinged lid can be slightly bent.

Description : Power steering hose leak dangerous?

Last Answer : I am not a fan of having flammable liquid spraying under my hood where it may hit metal that is hot enough to sear a steak. It may smoke now, but there is a definite non-zero chance of it ... the hood right now and end the suspense. Hoses are a cheap fix anyways, probably cheaper than stop-leak.

Description : Photographers: I didn't put a frame inside my Diana F+. Will there be a ton of light leak inside the camera?

Last Answer : You can see the frames in this video on YouTube.

Description : Can I mix normal power steering fluid with the lucas power steering stop leak?

Last Answer : Also my car Manuel doesn’t say what PS fluid I should use. I don’t get it. Can’t I just go buy some power steering fluid? What does it need to be?

Description : What's up with glass beverage dispensers leaking? Do they all leak or is there something I needed to do to prevent it?

Last Answer : I would return it. To me it sounds faulty. Maybe that one is just not functioning correctly? I serve sangria in a pitcher.

Description : Neighbor's daughter secret exposed, do you keep it or leak it?

Last Answer : answer:I'd never go to a strip club, yet alone sit through three acts, but if I were the subject laid out in your scenario, I'd mind my own business. You don't know the back story of the other ... not tell because I wouldn't want my neighbors to know I frequent strip clubs, so that's a muted bonus.

Description : Why does Kenmore Coldspot fridge Leak?

Last Answer : Check the connections. You probably have a loose connection that is not sealed properly. Where the water line coming into the ice maker connects to the ice maker would be my guess.

Description : Can you help me engineer this leak detection system for organic solvents?

Last Answer : answer:I'm sorry that I may not be qualified to answer this question, but these are my ideas. If argon is what will be leaking, you could have some sort of argon detector, and some sort of ... when there are no leaks. Any drop in pressure would signal a leak. Look up pressure decay leak detection.

Description : Could a virus leak from virtualbox into my real OS?

Last Answer : answer:Are you on the internet with that machine? It is possible for the virus on a dual boot or virtual machine to cross over.

Description : Does anyone know how to fix a leak you can't find!

Last Answer : Maybe you could put a fluorescent dye into the water line, and then go around with a black light. Other possibilities include summoning a plumber and duct-taping the living daylights out of everything.

Description : Say, that you had a water leak in your basement and water damaged the drywall, how long would black mold take to develop?

Last Answer : answer:I don't think I would wait to find out. I think insurance should cover fixing the damage. If black mold gets in-well, you probably already know how bad that is. I would think it could arrive in a few ... go clean it out. I don't know what kind of mold it is, but it goes when I clean it.

Description : Is there currently any greater problem in the world than figuring out how to plug the BP oil leak?

Last Answer : Oh, over harvesting of all major fish stocks, causing a crash. Global warming causing polar ice melt and rising water levels. The destruction of fresh water reservoirs. A crash in food production from the use of monoculture. The list goes on and on and on and on….

Description : Could the threat of criminal action against BP dis-incentiveize them from stopping the leak?

Last Answer : I expect they would assume they will be able to cut a deal on criminal charges or fines if they are seen to be stopping the leak. I don't hold any brief for their morality as a company from what I' ... , but I don't think they will be able to walk away from the problem unless they go totally broke.

Description : Should we Nuke the oil leak in the gulf?

Last Answer : Gadzooks! Someone who had the same line of thought I had. However many Americans could never stomach that even if they can't stand the oil. Now if they had an aqua version of GBU-43/B MOAB or in this ... it worse and no one would be willing to take the blame if it failed, or pay for the damage.

Description : I have a leak in a copper pipe. Is there any easy fix for this?

Last Answer : Insert Billy Mays voice: “MIGHTY PUTTY!”

Description : What if someone linked to a leak of a song and then the artist who made the track?

Last Answer : He’d probably be pissed and might even get his attorney involved? Maybe?

Description : Is there a decent cheap pen that won't leak when upside down?

Last Answer : get a pen with a cap?

Description : Are there any extremely robust, leak-resistant on-faucet water purifiers?

Last Answer : Try filtering at an earlier spot like under the sink filters. They are more pricy but work well

Description : why does my 40 yr. old elm tree leak moisture

Last Answer : Need Answer

Description : (a) “The breathing cycle is rhythmic whereas exchange of gases is a continuous process”. Justify this statement. (b) What happens if conducting tubes of circulatory system develops a leak? State in brief, how could this be avoided? (c) How opening and closing of stomata takes place? -Biology

Last Answer : (a) The breathing cycle involves inhalation and exhalation of air due to alternate expansion and contraction of thoracic cavity. Thus it is a rhythmic process. But exchange of gases is a continuous process ... pore opens up. When water moves out the guard cells shrinks and the stomatal pore closes.

Description : It is said that, in the very distant future black holes could leak and disperse. Can that happen? If it can, how? -Space

Last Answer : After 1040 years, black holes will dominate the universe. They will slowly evaporate via Hawking radiation. A black hole with a mass of around 1 M ☉ will vanish in around 2 1066 years. As the ... black hole is proportional to the cube of its mass, more massive black holes take longer to decay.

Description : What is Leak ?

Last Answer : Leak means refinement.

Description : How to detect if amniotic fluid is leaking? Are there any sure signs?

Last Answer : To this day, I don't know what happened to me a few days before giving birth. I visited my doctor because I had a strong watery flow, I thought the amniotic fluid was leaking. The doc back ... the water flooded. Then about a liter of sure left. It could no longer be confused with anything else.

Description : Is it because they are not used? For example, pencil

Last Answer : An irreversible chemical reaction occurs, the batteries also discharge spontaneously. This is a slower but irreversible process. It can be slowed down by cooling the batteries. many interesting things you will find on the net: eg: http: //www.proelektrotechniky.cz/vzdelavani/17.php

Description : find tbi leak

Last Answer : Need Answer

Description : after a water leak in an apartment, does managment have to replace sheetrock and carpet?

Last Answer : Need Answer

Description : I hav a leak in the rim of my intex blow up & fill up pool how do I find & patch or patch it?

Last Answer : Over fill the pool with air. The more air, the more pressure, the better results for bubbles. Try windex, the dish soap may be to thick for the tiny stream of air. Instructions on how to patch the pool can be found here http://www.ehow.com/how_5642585_patch-intex-pool.html

Description : 2000 Chevrolet truck: can you use "stop leak" with freon in air conditioner system?

Last Answer : You can try one of these products availible at AutoZone http://www.autozone.com/autozone/accessories/Fluids-and-Chemicals/A-C-Stop-Leak/_/N-25qt

Description : Why does water leak from an air conditioner?

Last Answer : Water commonly drips from HVAC systems because of disconnected or clogged drain lines. Ensure that the AC is properly installed and clean the dirty filters.

Description : Is it safe to fix gas leak on my own?

Last Answer : No, it is not safe. A pinched gas line can cause gas to leak in your home. Even though you can turn off the appliance, unhook it to stop it from leaking gas. you will still need to call qualified and licensed plumbers for gas line repair.

Description : How to fix an AC gas leak?

Last Answer : You can look out for the error by yourself or you can call a mechanic who is expert is repairing it I hope this answer helps because my choice is always the mechanic as they know the best about it