CULTURALQA 10 -2021-12
Being compilation there maybe errors Q1 How comedistilled water hasn't replaced transformer oil as a high voltage insulator? A1 Jim Phipps Power Systems Engineer Updated May 15, 2020 Yes. Pure distilledwater is an excellent insulator with high dielectric strength that is greater than mineral oil, it isless expensive than oil and conducts heat better. However, the following threeimportant points will favor the use of mineral oil over that of water. Moisture—All largehigh-voltage powertransformers which are liquid filled use a very high quality kraft paper(cellulose fibers) to insulate the windings. Any moisture in the oil willtransfer to the paper and can cause the dielectric strength of the fibers todegrade and breakdown in addition to producing corona when in the presence ofgas bubbles and high strength electric fields. You can think of the mineral oilenvironment in a liquid filled transformer as being very dry. Ideally, themineral oil is completely devoid of moisture. Since the paper insulation willtend to soak up moisture in the oil (it is more hygroscopic than mineral oil),a dry transformer will tend to have an insulation power factor of less than0.5% and the closer this value is to zero gives an indication of the dryness ofthe insulation system. It is very, very, dry like a hot sandy desert. Tomaintain a dry environment in the oil, the transformer tank is sealed so thatmoist air does not leak in and expose the oil. If the tank does leak, the oilwill absorb the moisture out of the air like a dry paper towel soaks up water.Over time, the moisture in the oil will migrate to the paper winding insulationwhere it will soak in and start a reaction process that breaks down thecellulose fibers in the paper. Ultimately, this will lead to the failure of theinsulation resulting in an internal fault. High moisture content in oil canalso lead to bubble formation due to the low vapor pressure of water. Asbubbles form, the dielectric strength is reduced and corona discharge canaccelerate the breakdown of the insulation. TemperatureRange—Water freezes at 0°C and boils at 100°C. Large power transformers in cold regions mustoperate at temperatures below freezing and may experience temperature rises atthe winding hot spot that approach boiling. Obviously, if a transformer wasfilled with water and froze, ice expansion would cause damage to the tank andwinding insulation in addition to other components like electrical connections.At the other extreme, if the water started to boil, steam bubbles would beproduced and this would cause increased tank pressure, reduce heat conduction,but more importantly, it would result in a lower dielectric strength in thespace near the winding where the steam bubbles form. This would increase coronaand cause damage to the winding insulation and ultimately to failure. Corrosion—Powertransformers are constructed with steel tanks and iron cores in addition to other ironcomponents used in the design. Water will corrode iron even when the water starts out as very pure.Over time, impurities will form as the water reacts with other materials and asthese impurities increase in concentration, corrosion will result in additionto a reduction in dielectric strength. For large power transformers like those used in largehigh-voltage power grids, they are designed to have lifetimes exceeding 40years. The use of water would lead to corrosion and could drastically shortenthe life expectancy. Q2 Is it agood decision to buy an EV in India right now? A2 Prasanna Bhalerao Please do not share my answers onmonetised spaces.20h ago EVs are good. EVs are clean and non polluting. EVs are quiet,so no noise pollution. EVs are the future of the world. Getting an EV is theright idea. There is a hiccup right now in India however. The (minor)hiccup is that there are not enough charging points across. This willdefinitely improve of course as time goes by. Then again, if the ride is fromhome to office to back, going to the the mall, etc., that doesn't matter much,does it? But, for goinglong distance, there may be a problem. Q3 Why are80% of people selected in the SSC CGL job (GP4600) not happy with salary andposting? A3 P MGowindan Nampoothiri Former GM at Reserve Bank of India (RBI)(2001–2008)October 4 I do not know the basis of 80 % >From the net, I have checked the rate of resignation from SSCGL is too low. >People do not resign and go for other jobs. If the satisfactionrate is low the >quitting rate must be high. So the 80 % figure is TOTALLYwrong. Secondly, all people will not be happy in any job. There willbe some people unsatisfied always, that is because they had higher expectationsfrom SSC GL. SSC GL is not a Top-level post and the salary cannot be toohigh. All can not get choice posting also. Most of the people who joined SSC GLare happy with their jobs. Q4 How do youkeep your office fresh? A4 Initial Hygiene India100 years of experience withcustomized business solutions Updated September 20 Some steps following which you can keep your office fresh: Allow fresh air toenter your workspace: What do you think is the best way to get rid ofa musty odor in the office? Most businesses have air conditioning units running24 hours a day without ever opening a window. It is acceptable for keeping theair within moving, but it also means that the scents stay the same. Allow freshair to enter your workspace by opening the office windows for at least 15minutes (even if it's before the day starts). Organize yourworkstation: First and foremost, makesure that all workplacesare clean! A messy office might begin to smell, as unwashed plates from lunch,heaps of paper, and trash can all contribute to a foul smell. It's the mainfactor for a hostile work environment, ensuring everyone knows the significanceof keeping their workstation clean. Use the restroom withcaution: Everyone in the office must contribute to keeping it freshand clean each day. It entails replacing the cleaning products regularly,ensuring that the soap is always available, and overall avoiding making a messat any time and for any cause! The bathroom should have an air vent, but ifthere are any openings, be sure to open those for several minutes or at leastonce a day. Encourage Regular Handhygiene: It is essential to promote good hand hygiene habits,especially in the office where cross-contamination is rampant. This can be doneby having adequate hand hygiene solutions to encourage regular handwashing withsoap, drying, and sanitising within your business. Also, the offices shouldinstall pleasant fragrance Hand Sanitiser units across the office and make themeasily accessible. Equip Feminine hygieneunits: Washrooms at most offices are not well equipped withsanitary bins, providing discomfort to an unpleasant situation for the femaleworker. Providing your female staff or customers with a discreet and hygienicplace with portable toilet suppliers and sanitary bins to dispose of femininehygiene waste is crucial to maintaining a clean and pleasant washroom environmentand should be a high priority in any work. Flowers should beadded: Flowers at the office are an excellent idea because you offer apleasant aroma and make the environment more comfortable for personnel andvisitors. Inside palm trees are considered fantastic air purifiers if you wantto invest in plants that will live longer than flowers. Good hygiene is vital in creating a productive environmentthat employees want to work in. With washrooms and equipment being used severaltimes a day by each employee, and more intensely at certain peak times, it is achallenge not to let hygiene standards slip. This is critical as it will show your employees you careabout their wellbeing, help reduce the transmission of illnesses and supportbetter business performance. Isn't it true that entrusting a problem to a specialist isthe most effective method to solve it? Initial Hygiene India understands that protecting employees'wellbeing from work-related illnesses is vital to the performance of yourworkforce. That’s why our Signature range with integral antibacterialtechnology is ideal to help minimize the spread of germs in the office andimprove productivity with lesser absenteeism. Initial Hygiene India offers the widest range of washroomhygiene services including the provision and maintenance of products such asair fresheners, sanitisers, feminine hygiene units, hand dryers, soapdispensers, floor protection mats Initials service technicians deliver efficient, effective,and discreet services, keeping our service commitment to customers across theworld. To learn more about our Workplace Hygiene Solutions to keepyour office fresh, Visit our Website With worry-free services tailored specifically to your needs,Initial Hygiene India takes pride in delivering the highest levels ofinnovative solutions and professional customer care. Q5 Whichtrain is comfortable and provides the best service, Rajdhani or Shatabdi? A5 Prasanna Bhalerao Knows about trains.22h ago Totally different comparison. Apples to Oranges. Rajdhani is (usually)an overnight service to/from New Delhi/NZM the national capital to various state capitals.Rajdhanis provide sleeper service in AC First Class, AC 2-Tier and AC 3-Tier.Evening tea, soup/dinner, morning tea and breakfast are provided complimentaryin the ticket price. Sometimes, for long journeys, lunch on start day or lastday is also included. Sleeping gear (bedsheet, pillow and blanket) is provided.(Both, last two were stopped during COVID). Shatabdi is a daytimetrain service between major cities of India. It provides sitting accommodation in ExecutiveChair Car and Second Class AC Chair Car. It is a same-day return service andthe length of the journey rarely exceeds 7 hours. Breakfast and sometimes lunchis provided during the morning run and afternoon tea/snacks and dinner isprovided during evening runs - depends upon the time length of the journey. Q6 How do Idesign a backyard landscape plan? A6 Matt Daly, Landscape Designer (2017-present) Answered 12m ago If you are going to tackle this without hiring a professionalto add you in the design process, here are a few tips I think would greatlyhelp you in your quest. Make a list of the features that you want to see in thespace. Patio, dog area, kids area, deck, patio cover, pool, fireplace etc. Next, measure your backyard. You probably have three fencelines and then your house so measure every face and write them down on a pieceof paper so you are able to have a canvas to design within. you should start from your back door and work your way outkeeping in mind that the further some thing is from the back door the less youwere likely to use it. Typically outdoor living space is only going to be a fewfeet from the back door. Once you have come up with the shape and size of thepatio, then start thinking how you can fill that patio with the features thatwould typically live there. Once you are content with that, then you can startworking on the border/perimeter of the space and then filling in what isbetween the perimeter and the patio. keep in mind that you were likely going to spend more timelooking at this from inside then you are going to actually be using it. It’skey that you figure out what vantage points of your new design you will beseeing from windows that you regularly pass in the home. If you can make youroutdoor space attractive from both inside as well as when you are outside usingit, it’s a win/win. if there are any aspects of the space that you are notconfident in designing yourself, you can always bring in a specialty designerthat can only focus on planting or only focus on patio or potentially help youthat your idea to think of opportunities and threats. additionally, many contractors out there that physicallybuild the spaces are happy to take your ideas and help you improve on them.This can be a very worthwhile experience if you find somebody that you cantrust. Q7 Theexistence of which tree is a mystery to science because of its strangecharacteristics? A7 Lucia Baratto Attended a garden design course October 6 The Kalaloch Tree. Some people call it the Tree of Life. With its amazinglyviewable roots seemingly supplying the tree with life despite having no soil,it seems to be immortal. The Kalaloch Tree is a Sitka spruce, the largest typeof spruce. The Sitka spruce runs along the west coast. It’s noted for both itstowering height and its wide trunk, two characteristics that contribute to thistree’s mystery. Underneath the webbed roots of the Kalaloch Tree is the TreeRoot Cave. Inside, a stream falls into the cave and flows out into the ocean.It’s this stream that washes out the soil underneath the roots every year. Manyquestion how the tree continues to grow and the leaves continue to stay green. Witnessesof the tree continue to return every year to gape at its wonder, expecting itto have fallen during the time between their visits. And each year, toeveryone’s surprise, the tree remains in its questionable position .Sitkaspruce trees are a long lived species with individuals over 700 years oldknown. Olympia National Park, Washington, United States. Q8 What was atypical meal for a European peasant during winter in the Middle Ages? A8 Ken Ward B.A B.ED ARCT OCT from Brock University, Canada (Graduated1973)Updated October 6 Peasants in medieval England ate a diet consisting mainly ofa type of stew called pottage made from the peas, beans and onions that theycultivated in their gardens. Foods usually found in a villager's diet wouldalso include colewort (Kale) and herbs (Parsley, sage, rosemary and thyme). Forprotein, cheese and eggs and very occasionally meat were eaten. Blood sausageor black pudding, made from pig blood, were poor people's food together withsalted bacon. The peasants' staple food was a dark bread made out of rye grainor more commonly, oats. The only sweet food they feasted on were the berries,nuts and honey that they collected from the woods. Besides butchery, whichpeasants performed for the wealthier classes, winter was synonymous with farmwork for medieval peasants. The water from a river was usually dangerous todrink and the milk did not stay fresh for long so the peasants consumed smallale which, when brewed, was a safe option. In larger homes of which there werenot many, an underground cellar could be used to keep foods packed in winterice through the cooler spring months and into the summer. Some villages hadcommunal ice mounds which would allow perishable items to have prolonged shelflife. All in all poorer folk, then as now, did not fare well. Q9 Why dodoctors have items handed to them during surgery? Wouldn't it be faster to pickup the items themselves? A9 Elaine Green Photographer, OperatingRoom Nurse, Pianist,Music TeacherSeptember 15 No it wouldn’t be faster, not at all. As well, the surgeondoes not usually take their eyes off the operative site, especially if the areais hard to visualize. There are many instruments that look similar to eachother. This pan below is just the most basic set of instruments ingeneral surgery, this doesn’t even include any of the orthopedics tools,screws, devices, and we haven’t even touched on plastic reconstruction surgery,gynecology, urology, etc or any other specialized areas of surgery. There arehundreds of other pans, sets, instruments, and quite a few have to be assembledbefore giving the instrument to the surgeon. Q10 How do Iremove a smell from a room? A10 Janie Smith Answered 52m ago Open the windows and wash any soft furnishings that can be inthe washing machine. Any soft furnishings that can't go in the machine shouldbe sprayed with a odour eliminator. The walls and woodwork can be wiped downwith a cleaning product. Carpets or hard floors can be cleaned with appropriateproducts. Q11 Is 2 litres of water a day too much? A11 Venkateswara Swamy Swarna , former Scientist, Metallurgist, Quality /NDT Manager at Department of Atomic Energy, India (1967-2008) It can be if you are taking in lot of water in the form ofother fluids like fruit juice, vegetable juices, colas etc. Q12 What aresome simple things that turn out to be a safety hazard? 3 Answers Sangram Sagar, ECommerce Consultant at Self Employed (2010-present)Answered Sat Sleeping while you're in the car can prove to be verydangerous. Especially if the car is idle. I'm reporting from LINE, sleeping in a stopped car with theAC on and the windows turned off is dangerous! This risk will be greater if the car's air conditioner is ina leaky condition. In fact, it only takes 10 minutes to suffocate you fromcarbon monoxide (CO) poisoning. And when we sleep, because we don't realize that we need moreoxygen, that's why we get stuck in that situation and end up suffocating. It's better if you're really tired and need to sleep, rent acheap motel instead of sleeping pulled over in the car. It's scary to diesilly. AnonymousAnswered Sat Not Clicking the helmet.I was very, very grateful that time Ihad the chance to click on my helmet before leaving because 5 minutes before mydestination I had an accident. Get hit from the side, then slide on theasphalt. As a result, my back, stomach, arms, thighs, knees, and feet were allscratched by asphalt and sand. For those who don't know what it's like, deep scratches thatare ingested with sand must be double cleaned because the sand enters theinjured skin, if not cleaned it will cause infection and healing will take longer. What I noticed from the accident was that my helmet was alsoscratched inside, especially on the windshield. I can't imagine if the helmetcomes off then my head and face will become crumbly. 3RD Answer- GopalaKrishnan, former Retired Assistant General Manager 1996-2004 at Department of Telecom(1966-2004)Answered 36m ago In home safety match boxes not properly keeping. Electricalplug points keeping switched on . Talking while mobile is put on charge. WhileLPG stove switched and not burning it and seeing other things. Working withelectrical equipment with loose connection All the above QA are based on Quoradigest to me on 11-10-2021. Quora answers need not be 100% correct answers Compiler- R. Gopala Krishnan, 78dated 12-10-2021 -- You received this message because you are subscribed to the Google Groups "Thatha_Patty" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/thatha_patty/1093669709.1242623.1634006848564%40mail.yahoo.com.
