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Sir psc pre ki fee kitni h and duration time

1 user answered

Khushboo Patel, Balco
Level 8 contributor
Depends on city and center of course! My experience is that the fees is usually from Rs 15,000/- to Rs 17,000/- and duration is about 3 months (up to exam date usually).
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Can you explain to me about "how to extinguish welding flame"?

1 user answered

Bajith Sasidharan, Raipur
Level 8 contributor
A welding flame requires both oxygen and a fuel source in order for it to run properly. You need to turn off both the fuel source and oxygen in order to turn off the welding flame. For oxy acetylene welding torches, you would need to close the oxygen valve first before shutting down the acetylene fuel source. This is what I read on a site.

My father used to work as a welder in the Cochin Shipyard. When I saw your question I called him up for an answer. He suggested that the acetylene should be closed off first followed by the oxygen. He said you need to do this since otherwise, the flame is difficult to control. Other than this there are other fuel sources like LPG which are also used where as well you would need to close the LPG before oxygen.
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What is the rate of GST for an electronic weighing machine of 30kg capacity?

1 user answered

Abhishek Dewangan, Raipur
Level 9 contributor
A weighing machine would fall under the 28% tax bracket for the GST.
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What would be the tax rates for red bricks under the GST?

1 user answered

Bajith Sasidharan, Raipur
Level 8 contributor
Red clay bricks would attract a GST of 5%.
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How to get pure silver coin and jewellery?

1 user answered

Ravishankar Sahu
Level 9 contributor
The purity of silver is expressed in India with the help of BIS marks which can in terms of fineness which can go as high as 99.99% purity (BIS 999.9). There are three BIS grades for fine silver which are BIS 999.9 (99.99% purity), BIS 999.5 (99.95% purity), BIS 999 (99.9% purity). But they are usually sold only as coins or bars which can be bought in most jewellery stores in your city. You only need to check the BIS hallmark to verify the purity of purchase.

If you are looking for pure silver jewellery or silver articles though, they usually only have a purity as per BIS standards of 970, 925, 900 etc. This means that 97-90% of the metal by mass in the jewellery would be silver and the rest would be other metals. Other metals are mixed to make the silver alloy, so as to make the silver jewellery less soft and more durable.
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Can I get admission in CBSE school after writing a compartment exam?

1 user answered

Bajith Sasidharan, Raipur
Level 8 contributor
There is no reason for you to not get admission to most CBSE schools after you clear your compartment exams

But if you are aiming for the top CBSE schools in your city, it might be difficult for you to get admission since a lot of schools who have specific marks criteria in order to join the Science, Commerce or the Humanities stream. So in these schools, this would depend on your marks in specific subjects.


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What is the tax rate on metal bangles

1 user answered

Bajith Sasidharan, Raipur
Level 8 contributor
Bangles come under the tax exempt category except if they are made of precious metals. Gold has a GST of 3%. So even if the bangles are tax exempt, gold bangles should have a GST of 3%.
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What are the entrance exams for interior designing courses in India

1 user answered

Mukul Singh, Lucknow
Level 9 contributor
Given below is a list of Entrance exams for the Interior Designer Course in India:

  • National Entrance Examination for Design (NEED)
  • NID Entrance Test
  • NIFT Entrance Exam
  • Common Entrance Examination for Design (CEED)
  • National Council for Interior Design Qualification exam
  • School of Fashion Technology (SOFT) Entrance Exam
  • National Level Entrance Aptitude Test (NLAT)

Other than the above, there are also institutes which have their own Entrance Exams.

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What is the history of treadmills?

1 user answered

Jeshma Orusu, Hyderabad
Level 7 contributor
At times an invented device may not be useful during it's initial stages but as time passes the utility of the device may become apparent or the device may be used for a very different purpose. One such device is treadmill, an important equipment of the modern day gym was actually used for punishing prisoners during the 1800s. Treadmills were invented in 1818 by an English engineer named Sir William Cubitt. Initial treadmills had a mechanism different from the present day treadmills, requiring the user to step upwards like walking up an endless staircase. 
The prisoners were made to turn a large paddlewheel by stepping on the spokes of the machine. Turning the wheel would in turn pump out water, crush grain, produce electricity, power ventilators in mines etc. Prisoners were often forced to spend up to six hours a day on the wheel in order to utilize their muscle power, to cure their idleness and to do useful work, this was equivalent of climbing about 5,000 to 14,000 feet. So the treadmill was used to torture and punish criminals. They remained in use to punish prisoners until the second half of the 19th century but later they were used to diagnose heart and lung disease in hospitals and  they gradually turned into exercise equipment. Treadmills today are used for various purposes like medical facilities (hospitals, rehabilitation centers, medical and physiotherapy clinics, institutes of higher education), sports clubs, Biomechanics Institute, orthopedic shoe shops, running shops, Olympic training centers, universities, fire-training centers, NASA, test facilities and training rooms of police and army, gyms and even home users. 

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Do packaged drinking water have an expiry date?

1 user answered

Jeshma Orusu, Hyderabad
Level 7 contributor
Water usually doesn’t have an expiry date but the plastic bottle that contains water has an expiry date so the plastic bottle will eventually expire and will leach chemicals into the drinking water as the bottles are usually made up of polyethylene terephthalate (PET) bottles and high-density polyethylene (HDPE) . The chemicals from the plastic bottle may or may not make the water toxic and harmful but it will definitely change the taste of the water. So, even if the water bottle expires it is still safe to consume the water if and only if the bottle isn’t opened and is properly sealed because the packaging keeps the dust, oxygen, microbes, high heat, pesticides, gasoline and other agents away from the water and thus preventing the water from being spoiled. Also storing the water for too long will change the bottled water’s appearance and smell along with the change in taste but the water will still be safe to consume. According to various food laws all the food products and consumable goods sold should have an expiration date and when Plastic or PET based water bottles are exposed to sunlight for a very long time algae or fungal depositions start taking place which is indicated by a light green tint on the bottle’s surface, water from such plastic containers shouldn’t be consumed. The average time of such micro-bacterial decomposition based on average storage conditions will give the expiry date that is to be displayed on the water bottle, therefore even though water doesn’t have an expiry date it is necessary to display an expiry date on the plastic bottle or contains. 



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