Showing posts with label Tricks. Show all posts
Showing posts with label Tricks. Show all posts

Sunday, December 2, 2012

DRDO Interview Questions for Electrical Engineers

Ramana my Friend's DRDO interview Questions:


1. What are the various experiments you have done in your machines lab
2. How the vibrations are produced from mobile phone when it is in that mode

Departmental Expert-1:

1. Why your eyes are in red colour, don't you have enough sleep yesterday night
2. what is your favorite subject
3. What is meant by zpf... this term is related to which machine
4. What is meant by reluctance motor
5. write the expression for power developed in salient pole synchronous motor?
6. what is meant by load angle in detail
7. Can you explain hunting breafly..?
8. Is there any method to reduce hunting...?
I think you studied power system analysis in your B.Tech....not power systems, power system analysis

9. what are the various quantities required for design of power system
10. Can you tell me the method for power system stability analysis
He gives clue for above question
11. Explain equal area criterion analysis method

Departmental expert-2:

1. this question related to communication subject
2. what is meant by stepper motor
3. how the steps can achieve
4. what is meant by BLDC motor
5. what is the constructional and operational difference between BLDC motor and DC motor
6. without the brushes and commutator how can you achieve the current reversal?
for the above question Departmental Expert-1 gives 50% answer as clue...
7. what is the purposes of commutator in DC machines
8. In diesel engine trains how the exact system is there inside
9. How can we get the supply for fans and lights in trains
10. Name the special generator used for above...?
for this question departmental expert-1 gives full answer

External expert:

1. instead of using AC transmission why we are using HVDC
2. What is the main adv. and dis adv. of HVDC
3. can you learn about the earth fault circuit breaker in houses
4. what is meant by MCB? how it works? which type of CB it is?

Departmental expert-1:

1. apart from the losses, cost etc etc..... the advantage of HVDC over any other....


Lastly the departmental expert-1 asks Well Mr. Ramana suppose if you are selected in this job, afterwards you got
other job based on B.Tech (example in ISRO that is also a R&d org.)then what do you do....


Tuesday, November 20, 2012

Bike Riding Tips and Tricks

Now a days the youth are more passionate about their bikes and adventurous rides with it. The bikes and stunts are really a guy thing which drives the riders to crazy fun like nothing else. But they don’t realise the risk underneath their stunts until they are once experienced for. The following tips will be quite useful for the begginers who are going to be a good riders in future. With all senses a rider has to control the following:
 • Brake 
• Clutch 
• Acclerator 
• Signals lights 
• Sharp turns 
• 150 degree view ahead 
With perfection in these the ride will be under control and happy....but lacking in any thing of above may result in severe disasters.. Common mistakes by Riders: 
• Applying brakes while crossing sharp turns which result in skidding of vehicle. 
• Making the vehicle to run down street with engine off. 
• Not maintaining the center of mass of (bike+rider) jointly.
 • Careless ride by consuming alcohol.,etc.
If you can’t turn a crossing sharply then just apply brakes ahead and then slowly make the turn rather than skidding over the road. Riding the bike downwards with engine off makes the rider to loose control over the vehicle.Remember that an engine in On state works greatly than the engine in Off state.The person should understand his bike well enough to maintaine the center of gravity always aligned in correct manner.The following fig shows the difference
By carefull pressuring up your weight on the foot rest will do a great job under sharp turns. Always drive on the right side of the road and for some countries like India you should align yourself on the left side of the road as per the traffic signs and signals.Use hand signals when ever and where ever necessary.

Sunday, January 8, 2012

Tricks with GOOGLE

All google Tricks :


1> Type in “Google Gravity” and click on “I’m Feeling Lucky”(wait a sec to experience the effect of gravity.)

2> Type in “elgoog”and click on “I’m Feeling Lucky” (the Mirror effect is on.)

3> Type in “Google Sphere” and click on “I’m Feeling Lucky” (see the spinning effect.

4> Type in “who is the cutest” and click on “I’m Feeling Lucky” (see who’s so cute and beautiful/handsome.)

5> Type in “Google Loco” and click on “I’m Feeling Lucky” (see what’s moving.)

6> Type in “ LOL Limewire” and click on “I’m Feeling Lucky” (see that you are as a pirate.)

7> Type in “Epic Google” and click on “I’m Feeling Lucky”

8> Type in “Rainbow google” and click on “I’m Feeling Lucky”

9> Type in “Google pacman” and click on “I’m Feeling Lucky”

10> Type in “Google color (Ex: pink,blue)” and click on “I’m Feeling Lucky”

11> Type in “weenie google” click on “I’m Feeling Lucky”

Sunday, December 18, 2011

Maintain your dairy in better way

Do you keep a diary (or the more manly version…a journal or chronicles)? Or do you wish to keep notes where the notes keep the date automatically? Well here is an awesome trick for you. All you need is notepad.
1) Open a blank notepad file.
2) Type .LOG in all caps at the top and hit enter.
3) Now save the file.
4) After closing the file, reopen it and notice that the date & time is now listed on the second line.
5) Also notice that the cursor is ready for you to start typing on the very next line.
6) Now every time you open it, type something on the next line and then save it, when you reopen it, it will have automatically saved the date and time on the last line. - Cheap Diary
It keeps a running record of date and time for each save. Now you have a cheap diary! Congrats!
Commit a random act of awesomeness.


Saturday, December 17, 2011

How to Unlock a Computer Without a Password Reset Disk

A locked computer can result in dead end frustration, potentially costing hundreds of dollars in repair bills. Unlocking your computer without the aid of a password reset disk can be done by accessing the default Administrator account from Safe Mode and unlocking your computer via console commands. This can generally be done in minutes.


    • 1
      Restart the computer.
    • 2
      Press "F8" as the computer is booting and select "Safe Mode."
    • 3
      Click on the "Administrator" account.
    • 4
      Select "Start" and click "Run."
    • 5
      Type "control userpasswords2" and press "Enter."
    • 6
      Uncheck "Users must enter a username and password" and restart the computer. It will be unlocked.


Wednesday, November 30, 2011

Top Ten Ancient Inventions You Think Are Modern

The industrial revolutions and the years following them produced some of the greatest inventions known to man – and certainly the most complex. Because this has been a part of our history for so long now we tend to presume that much of our modern conveniences have come from then. What is surprising is how many of the things that we use every day have been in use by humans for thousands of years. This list of ten things all predate the birth of Christ and they are all things that we are familiar with if not regular users of.
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Plywood has been made for thousands of years; the earliest known occurrence of plywood was in Ancient Egypt around 3500 BC when wooden articles were made from sawn veneers glued together crosswise. This was originally done due to a shortage of fine wood. Thin sheets of high quality wood were glued over a substrate of lower quality wood for cosmetic effect, with incidental structural benefits. This manner of inventing plywood has occurred repeatedly throughout history.
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Standardized earthenware plumbing pipes with broad flanges making use of asphalt for preventing leakages appeared in the urban settlements of the Indus Valley Civilization by 2700 BC. Plumbing originated during the ancient civilizations such as the Greek, Roman, Persian, Indian, and Chinese civilizations as they developed public baths and needed to provide potable water, and drainage of wastes. Improvement in plumbing systems was very slow, with virtually no progress made from the time of the Roman system of aqueducts and lead pipes until the 19th century. Eventually the development of separate, underground water and sewage systems eliminated open sewage ditches and cesspools.
Ice Skates
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According to a study done by Federico Formenti, University of Oxford, and Alberto Minetti, University of Milan, Finns were the first to develop ice skates some 5,000 years ago from animal bones. This was important for the Finnish populations to save energy in harsh winter conditions when hunting in Finnish Lakeland. The first skate to use a metal blade was found in Scandinavia and was dated to 200 AD and was fitted with a thin strip of copper folded and attached to the underside of a leather shoe.
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The world’s first recorded chemist is considered to be a woman named Tapputi, a perfume maker who was mentioned in a cuneiform tablet from the second millennium BC in Mesopotamia. She distilled flowers, oil, and calamus with other aromatics then filtered and put them back in the still several times. Recently, archaeologists have uncovered what are believed to be the world’s oldest perfumes in Pyrgos, Cyprus. The perfumes date back more than 4,000 years. The perfumes were discovered in an ancient perfumery. At least 60 stills, mixing bowls, funnels and perfume bottles were found in the 43,000-square-foot (4,000 m2) factory. Four of the perfumes have been re-created from residues found at the site.
Metrology and Calibration
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The inhabitants of the Indus Valley Civilization (c. 3000–1500 BC, Mature period            2600–1900       BC) developed a sophisticated system of standardization, using weights and measures, evident by the excavations made at the Indus valley sites. This technical standardization enabled gauging devices to be effectively used in angular measurement and measurement for construction. Calibration was also found in measuring devices along with multiple subdivisions in case of some devices. Metrology has existed in some form or another since antiquity. The earliest forms of metrology were simply arbitrary standards set up by regional or local authorities, often based on practical measures such as the length of an arm. The earliest examples of these standardized measures are length, time, and weight.
5.  Lenses
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The Nimrud lens is a 3000 year old piece of rock crystal, which was unearthed by Austen Henry Layard at the Assyrian palace of Nimrud. It may have been used as a magnifying glass, or as a burning-glass to start fires by concentrating sunlight. Assyrian craftsmen made intricate engravings, and could have used such a lens in their work. Italian scientist Giovanni Pettinato of the University of Rome has proposed that the lens was used by the ancient Assyrians as part of a telescope; this would explain why the ancient Assyrians knew so much about astronomy.
Central Heating
Cities in the northern Ancient Roman civilization used central heating systems from around 1,000 BC, conducting air heated by furnaces through empty spaces under the floors and out of pipes in the walls — a system known as a hypocaust. Hypocausts were used for heating public baths and private houses. The floor was raised above the ground by pillars, called pilae stacks, and spaces were left inside the walls so that hot air and smoke from the furnace (praefurnium) would pass through these enclosed areas and out of flues in the roof, thereby heating but not polluting the interior of the room. Ceramic box tiles were placed inside the walls to both remove the hot burned air, and also to heat the walls. A similar system of central heating was used in ancient Korea, where it is known as ondol. In the image above you can see the sections beneath the floor where the heated air would flow.
Cataract Surgery
The earliest records of cataract surgery are from the Bible as well as early Hindu records. Cataract surgery was known to the Indian physician Sushruta (6th century BC – pictured above). In India, cataract surgery was performed with a special tool called the Jabamukhi Salaka, a curved needle used to loosen the lens and push the cataract out of the field of vision. The eye would later be soaked with warm butter and then bandaged. Though this method was successful, Susruta cautioned that cataract surgery should only be performed when absolutely necessary.
Dentist’s Drill
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The Indus Valley Civilization has yielded evidence of dentistry being practiced as far back as 7000 BC. This earliest form of dentistry involved curing tooth related disorders with bow drills operated, perhaps, by skilled bead craftsmen. The reconstruction of this ancient form of dentistry showed that the methods used were reliable and effective. Cavities of 3.5 mm depth with concentric grooves indicate use of a drill tool. The age of the teeth has been estimated at 9000 years.
Plastic Surgery
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Plastic surgery is one of the oldest forms of surgery practiced. Nose-reconstruction operations were probably performed in ancient India as early as 2000 BC, when amputation of the nose was a form of punishment; the caste of potters eventually devised a method for rebuilding the nose by using a portion of the forehead, a technique still employed today. Some discussion of such surgery also appears in ancient Greek and Roman tracts. Pictured above is Walter Yeo, the first man to benefit from modern plastic surgery. The image on the right was taken after Yeo received a skin graft.
This article is licensed under the GFDL because it contains quotations from Wikipedia.
“Plastic Surgery,” Microsoft® Encarta® Online Encyclopedia 2008 © 1997-2008 Microsoft Corporation. All Rights Reserved.


Tuesday, November 29, 2011

Sun Salutation--Surya Namaskar

surya-namascar11. Namaskar - salute. Stand erect with feet together and join the palms in the center of the chest in the style of Indian salute and inhale. Then exhale and push the hands down straightening and lowering the arms until the elbows touch the sides. This standing pose is also known as tadaasana.
surya-namascar22. Chandraasan - crescent moon pose. Inhale and raise the arms above the head and extend the spine backwards arching the back from the waist and moving the hips forward. Let the eyes follow the hands while relaxing your neck.
surya-namascar33. Hastapadaasan - bending pose. Begin to exhale bending forward from the waist and place the hands on the floor besides each foot. Relax with your head and neck in a bending pose.
surya-namascar44. Surya darshan - sun gaze. Inhale and putting your weight on the hands stretch the right leg behind like a stick resting on the toes. Bend the knee and place it on the floor with your weight on the left foot and arch the spine backward. Lift the head and neck first up and then back. Roll the eyes up. The left foot remains between the hands.
surya-namascar55. Himalayan - mountain pose. Exhale and bring the left foot back in line with the right. Lift the hips up high like a mountain. Push the heels and head down and look at the toes with the head down between the arms.
surya-namascar66. Sashtang dandawat - lie down. Put the knees down first and then bring the chest down. See that eight parts of the body are touching the floor including two feet, two knees, two hands, the chest and the chin or forehead. Sashtang means eight limbs and dandawat means paying homage by touching the floor. Make sure the hips are slightly raised above the ground. Inhale and exhale in this position. Keep the feet together.
surya-namascar77. Bhujangaasan - cobra pose. Lower the pelvis and abdomen to the floor. Inhale and stretch the toes on the floor. Raise your head slowly up, arch the spine and neck and look up. Keep your legs together and the elbows alongside the body slightly bent and keep the shoulders down.
surya-namascar58. Himalaya aasan. Exhale and wiggle your toes forward allowing your feet to rest on the soles while your raise the hips as your did in number 5.
surya-namascar49. Surya darshan. Inhale and bring the right foot forward and assume pose number 4 exactly as before.
surya-namascar310. Hastapadaasan. Exhale and bring the right foot forward and assume pose number 3.
surya-namascar211. Chandraasan. Inhale and stretch up in a standing pose with your arms up and bend backwards like in pose number
surya-namascar112. Namaskar. Exhale and stand erect bringing the hands back to the center of the chest with palms together as in pose number 1.

Thursday, November 24, 2011

How to Run Your Business Online With $10 (and a Google Account)

Online infrastructure for your small business doesn't have to be complicated or expensive. By leveraging many of the free and inexpensive products offered by Google, you can create a website, a domain-branded e-mail system, and a document collaboration platform, all unified under one master login and password.

Once all of the virtual wires are connected, these services are extremely user-friendly, allowing anyone with a bit of web knowledge to become the "system administrator" for their office.

Follow the steps below, and you'll be on your way to a customizable and scalable business infrastructure that lives where your employees do: in the cloud.

1. The Master Key: Your Google Account

Create a free consumer-level Google account (essentially, a Gmail address) that you'll use to administer your business domain.

This could be your existing Gmail address, but if you already have other Google products connected to this account (YouTube, Docs, Blogger, etc.), we recommend creating a new profile, for example.

Note that for the purposes of this tutorial, this will not be the e-mail address that you'll be using to conduct business and correspond with clients. Consider it the "Master Key" account, which you will use to access the rest of your domain. Be sure to choose a strong but memorable password.

2. Create a Blogger Site

Head over to Log in with your "Master" Google account, and you'll have the opportunity to create a blog on this popular Google-owned platform. Using a blog as your company website has a number of advantages:

  • The platform is free.
  • The backend is easy to use, so anyone can update or change it.
  • Your data can be accessed from any web browser, as opposed to more complicated FTP software.
  • Custom templates can get your site looking good even if you don't have web design experience.
  • Integrating elements from your business's social media presence is a breeze.
This blog will eventually become your business website, so title it with your company's name. The blog URL is less important because we will be mapping it to your custom domain in the next step, but for consistency, create, if available.

Choose the default template for now (we'll be customizing it later). Once you've set up the blog, you'll be taken to the Dashboard, which is where you can start creating content for the site.

You'll have to decide: Do you want a traditional informational business site (with pages, links, etc.)? Or do you want to keep the blog format and create content on a regular basis? We urge you to choose the latter -- business blogging is one of the best ways to distinguish yourself in any field or industry. If you decide to stick with this format, you're off and running. Experiment with your content and layout, and skip ahead for some resources on finding the perfect template design.

If you've decided to stick with a more classic site layout without the blogging format for content creation, you can still utilize the Blogger content management system (CMS). Simply create one blog post that will serve as your home page. Title it accordingly, and add information about your business.

In your dashboard, choose "Design." The "Page Elements" screen is where you can manage and rearrange the items that appear on your site. In the box labeled "Blog Posts," click "Edit" to bring up a list of settings. Since you will only be creating one blog post to act as your home page, uncheck all the items on the "Post Page Options" list. This will remove things like the date, time, and sharing options, and format the entry like a simple page, rather than a post. As this will be your only entry, it will always appear on your home page.

To create static pages (About Us, Contact Us, etc.), click the "Posting" tab and then select "Edit Pages." Pages are formatted like posts, but will not appear as part of the blog feed. Instead, they can be arranged like traditional navigation links at the top of your site. You can also configure the order in which they appear, and whether certain pages are visibly linked in this navigation.

Note that Blogger utilizes Picasa to host images. You can upload post images and business header logos directly through the Blogger interface, but if you want to manage your images more directly bookmark the Picasa Web Albums site, and simply log in with your master Google account to see the Blogger album(s).

3. Design Your Site

Now for the fun part. You don't have to be a web designer to build a great looking blog. There are plenty of free template resources available, particularly for the Blogger platform.

We've previously highlighted some of our favorites, many of which are clean and versatile -- perfect for business use. Additional quality templates can be found on these sites:

You'll need to download the template XML file and upload it to your blog. Under the "Design" tab, choose "Edit HTML." This is an area where advanced users can make more specific tweaks. For now, you can upload the template of your choice by selecting the downloaded file and hitting "Upload." This will change the look and layout of your site, but the content itself (Posts, Pages, etc.) will be unchanged.

Note that templates utilize different layouts and page elements. Changing or altering your template will never erase your content, but it may arrange it in a way that's undesirable. You should always download a backup copy of your current XML template before installing a new one. That way, you can revert back to it if something goes awry.

As you become more familiar with how templates and blog elements work, you may want to do some further customization by tweaking the XML and HTML in your layouts and posts.

4. Register and Map Your Custom Domain With Google Apps

Now for the overhead cost. A whopping $10 will allow you to register your custom domain through Google with one of its registrar partners. Domain registration should be a top priority for all businesses these days, and setting up shop with Google offers the added benefit of its integrated apps -- an e-mail, calendar and document system identical to the free products on the web, but which operate within your custom domain.

From your Blogger dashboard, click "Settings," then "Publishing." Currently, you're publishing on the "Blogspot" domain, but click the link that says "Switch to: Custom Domain." This will take you through the process of checking your domain's availability and making the purchase with a credit card. Because you are doing this directly through your Blogger account, the system will map your site to the new domain name automatically -- no DNS manipulation is required.

Once you've registered, you'll have the opportunity to set up your employees' accounts -- up to 50 of them, as needed. Explore the administrator backend to find out what other settings and features might be useful for your company's workflow.


You're off and running with a complete, cloud-based business infrastructure that you can customize and administer from any browser with one Google account and password. As you begin to experiment with more online content, your master Google account connects you to a host of other useful products like YouTube, Google Voice, and AdWords -- all of which can easily be integrated on your site, and all "live under one roof," so to speak.

For $10 and a bit of DIY time investment, this is a small business web solution that's certainly worth experimenting with.