ISRO Placement Papers

Written Test for Scientist / Engineer_SC : [ Mechanical Engineering ]
Date: 30-06-2005
Place: St. Anne?s School, Hyderabad.
Question Pattern for Written Examination
80 Questions
2.00 hrs Duration
? ? Negative Marks
? All are Objective & Multiple choice Questions.
1 The concept of ---------------------------------- derived from the ?ZEROTH LAW OF THERMODYNAMICS?.
TEMPERATURE
2 The concept of ------------------------------------- derived from the ?SECOND LAW OF THERMODYNAMICS?.
ENTROPY
3 The expression for is entropic index [?] in terms of number of degrees of freedom
( n ) ------------------------
1+ [ 2 / n]
4 The critical Reynolds no up to which the viscous flow exists in pipe -------------------
2000
5 Two forces of equal magnitude P acts at right angles to each other and having same directions. Find out the expression for their resultant [R ]--------------------
[2]? P
6 The angular frequency of hand clock------------------
?/30 rad/s
7 The equation for free torsional vibration----------------------------
[1/2?] [q/I]?
8 A thin cylinder is subjected to longitudinal stress ?0 and internal pressure P , find out the maximum shear stress developed in it [ q max] ------------------------
0.5 ?0
9 Rate of moment of momentum is equal to the -------------------------
Torque applied by the body
10 The expression for loss of energy [he ] due to sudden enlargement of the pipe--------
he =[v1-v2]?/2g
11 A spring of stiffness K is divided into ?n? number of springs. Each spring having stiffness ---------------------------
nK
12 The non-dimensional number corresponds to
[inertia force\compressibility force]?------------------------------ Euler number
13 Equation for forced vortex flow-----------------------------
v/r = constant
14 The causes of capitation
Metallic surfaces are damaged
Noise & vibrations
15 How to increase the thermal efficiency in Carnot cycle by-------------------------------
Decreasing low temperature
16 The slenderness ratio in columns can be obtained from the ---------------
Least radius of gyration
17 50:1 gear reduction ratio possible in-----------------
worm gear
18 Wire drawing property named as -------------------------
ductility
19 One man is standing in the elevator and the elevator is moving in the upward direction. What type of reading regarding the weight of man will we get from gauge---------------
The weight of man shown by the gauge will more the actual weight of the man.
20 LMTD for counterflow heat exchanger is compared to parallel to heat exchanger-----
More
21 The free damping equation 2y?? + 3y? +8y =0. Calculate damping factor (D.F )--------
3/8
22 The discharges for the two parallel pipes of same lengths are Q1 & Q2 respectively and their diameters are 200 mm & 800 mm respectively. Calculate the ratio of discharge of smaller pipe to larger pipe.
1/32
23 A compressor is used to compress the air from 5 bar to 10 bar .Calculate its critical pressure [ P?]----------------------
2.64 bar
24 Equivalent twisting moment------------------------------
Te = [T? + M?]?
25 The shear stress distribution in pipe flow -----------------------------
Center is zero and linearly varying from the center to the wall
26 The irrational component in x-y is--------------
?v/?x = ?u/?y
27 The ratio kinetic viscosity/thermal diffusivity is -------------
Nusselt Number
28 The cylinder is subjected to insulations K & 2K at the outside surface to avoid heat transfer. In order to arrest heat transfer effectively , which insulation should be provided first at the outer surface?
2K & K respectively
29 The wall having conductivities
K1 K2
Find out the equivalent conductivity of the material--------------------?
29 The maximum amplitude in this vibration equation y = 6 sin?t --------
6
30 The thermal boundary layer in an ideal fluid flow is --------------
0
31 What does tend to stagnation point -----------------------
The velocity is 0 at the stagnation point due to the increase in pressure energy from the conversion of K.E into P.E.
32 Match the following:
i. subsonic nozzle : figure
ii. Supersonic nozzle : figure
iii. Subsonic diffuser : figure
iv. Centrifugal compressor : figure
33 The factor of safety subjected to number of cycles related to
Endurance limit
34 In composite beam , width is directly proportional to -----------------------------------
if the depth of the beam is kept constant.
? M
35 The heat transfer rate of hollow cylinder is inversely proportional to the following
--------------------------------- r2/r1
36 A material at 300?C is immersed in water at 30?C such that it will take 170 seconds to become 150?C .
A same material at 300?C is put in air at 30?C but it will take 200 seconds to become 150?C. What is the reason behind it ?
K of water is more compared to air
37 Radiation is ------------------------------------------ wave phenomenon
Electromagnetic without medium
38 The compression ratio[r] of petrol engine ranges from -------------------
6 to 10
39 ??Q/T =0 and ?s=0 corresponds to ---- irreversible & adiabatic
40 Cold working of metal increases ----------------------
Tensile strength
41 The power absorbed in belt drive depends on-----------------------
Tension in tight side, Tension in slack side, coefficient of friction & Radius of pulley.
42 The temperature loss related -------------- hysteresis loss
43 The convergent pipe having entry and exit diameters are 100 and 50 mm respectively, find out their velocity ratio from entry to exit????..
1/4
44 They had given one composite circular pipe having 4 varying cross sections . They are 2D, 1.5D, 4D & D respectively. The water is entering at velocity V at section 1 and leaving at section 4. Find out the pressure decreasing order?????
P4>P2>P1>P3
45 The bulb having weight 150N supported by two ropes and attached to the walls having angles 45? & 60?. Find out the reaction forces in the ropes ?
This is related to Lamis theorem
46 A hollow sphere of radius r . A particle is moving with coefficient of friction 1/[3]? inside the sphere from wall . which height will it become rest?
47 The disc is resting on the rough wall by a rope tied at the center . The rope makes angle with the wall around 30?. The tension in the string is ----------than the weight of the disc. more
48 A railway wagon containing partially full of water. Which angle----------------
49 Find out the graph between discharge [Q] in the x-axis and head [H] in the y-axis----------
50 In welding pitch dimension is limited to----------------------
51 The composition of in conel alloy-------------------
52 There is a heat transfer between two walls having thickness and conductivities k1 & K2 respectively. The linear temperature profile of first wall is more steeper than the second wall . Find out the ratio K1/K2 ---------------------
a) >0 b) <0 c)=0 d) the given data is insufficient
53 The max shear stress developed in solid circular sheet is 100 MPa . Calculate the max normal stress developed in it? ??????
54 This question related to welding -------------
55 Bearing liner-------------------------
a) Babbitt metal b) Gun metal
56 Electrical resistance material --------------Nichrome
57 This question related to radiation
58 A sun emits 1150K at 0.5?. A furnace emits 300k from small door --------------
59 In the simple pendulum , the maximum amplitude depends on ------------------- increase in length
60 The fuel flow increases if-------------------------
a) exhaust valve burnt b) filter choke c) silencer choke
61 The jet propulsion depends on-------------
a) jet velocity b) weight ratio
62 What is the condition for perfect frame-------------------------------------
63 Depth of cut can be increased by-----------------------
64 The workpiece can be held in-----------------
65 This is related to Nucleate boiling
66 What is the expression for Reynolds number in terms of diameter of the pipe????..Re =?VD/?
67 Air conditioning means---------------
a) cooling & heating b)dehumidifying c) removing impurities from air d)all
68 Fibrous fracture occurs in ------------------------
a)brittle fracture b) ductile fracture c)shear fracture d)none
69 In laser beam machining , the workpiece should be--------------
a)absorbed by all the rays b) reflected by all the rays
70 Foam and coke are good insulators. Why?-----------------------
a)less density b)
71 Gold property------------------
a)good conductor b)good insulator
72 In lathe , the workpiece can be held in --------------------------------------
a) live center b)steady rest c)3-way chuck d)4-way chuck
INTERVIEW PATTERN
I. Project Explanation
II. Fluid Mechanics:
i. Define laminar flow & Turbulent flow
ii. What is the value of Reynolds no in pipe flow
iii. What is the significance of Reynolds no
iv. Head losses in pipe
v. Define boundary layer in pipe flow & thickness of boundary layer
vi. What is the variation of ? in laminar & turbulent flow
III. Strength of materials
i. Draw the figure for spring damper system
ii. Differential equation for spring damper system
iii. Find out the deflection of spring damper system
iv. Define stiffness and unit of stiffness
IV. Material Science
i. Ferrous materials
ii. Non-ferrous materials
iii. Define fatigue
iv. Define fatigue resistance?
v. Curve for fatigue
vi. Fatigue limit

Interesting Aerospace Quiz

Questions

1. Next time you take a flight, obey the following :

i. Don’t flush the plane toilet while seated.

ii. Carrying Mercury is prohibited.

iii. Laptops and CD-players are banned during take-off.

iv. and in case, you are a pilot, you are not allowed to have beards.

Are these rules justified?

2. In many events, athletes do take advantage of reduced aerodynamic drag that occurs on hot

days and at high altitudes. This reduction in aerodynamic drag, for example, has been

attributed to help U.S. athlete Bob Beamon (in Mexico City, 1968) to break the world long

jump record by almost 2 ft! Can one argue that an airplane will experience better performance

trying to take off from a high altitude runway on a hot day?

3. During high-speed maneuvers in modern fighter aircrafts, pilots experience centrifugal forces

equivalent to many times the force of gravity. When this happens, blood can pool in body’s

lower extremities and the pilot is susceptible to blacking out. A G-suit counters this problem

by squeezing the pilot with expandable bladders to keep more blood in the upper body. The

U.S. Navy’s Blue Angel pilots, however, choose not to wear them. Why?

4. In June 1918, 25 fighter aircraft prototypes were tested before members of German Air

Force. The overall winner was Fokker D-VIII, a monoplane having plywood-covered wings

with excellent strength and structural rigidity. The German Air Force placed an order for 400

aircrafts with a request that the rear wing spar be strengthened even further. After 20 of these

aircrafts were delivered in July 1918, several were quickly lost in flight when the wings tore off

at high speed. Time to blame the structural engineers! Those poor fellows again performed

the ground test, this time the wings loaded with sand bags to ultimate strength – what a

surprise! The airplane passed all of the static tests! Can you solve the mystery?

5. In the world of aircraft, does sun ever rise in the west?

6. During cryogenic testing at NASA’s National Transonic Facility (NTF) wind tunnel, operators

spray cryogenic liquid Nitrogen into the flow upstream of the fan. Why?

7. Is it possible to see “earthrise” or “earthset” from the moon?

8. Stealth aircrafts are supposed to be aircrafts difficult to detect. Perhaps you will be surprised

to know that exterior lights are attached to the Stealth and they are turned on when it tries to

be ‘stealthy’! Can you guess why?

9. Richard P. Feynman, the great Nobel Prize-winning physicist, called it “the most important

unsolved problem of classical physics”. What is it?

10. Through his spyglass, in 1609 Galileo observed Saturn’s rings. He publicly announced it.

Nobody believed him. So Galileo asked them to see it in their own eyes (using his spyglass).

But it happened other way round! Nobody could see the rings (including Galileo himself). Was

Galileo a liar?

Answers

1.

i. This has the danger of being vacuum-sealed. In 2001, a passenger flying across the

Atlantic on a Boeing-767 became vacuum-sealed to a toilet seat after flushing.

Engineers were later able to pry her loose only after the aircraft landed!

ii. Mercury corrodes Aluminum-alloys (what planes are largely made of).

iii. They emit electro-magnetic (EM) radiation which can interfere with aircraft’s sensitive

navigation instruments’ signals during the first 10,000 ft.

iv. Pilots must be clean-shaven. It’s not a style issue; a beard would stop the Oxygen

mask from fitting tightly enough, if the cabin pressure suddenly drops down.

2. No, the high altitude would translate into a long take-off run due to thinner air. Although drag

is less on a hot day at high altitude, so is lift. Also the low-density air results in a reduced

mass flow rate through the engine. So thrust is penalized. Shortest take-off runs occur at low,

cool altitudes.

3. The suits are restricting and uncomfortable, preventing the Angel pilots from performing

precision flight. Instead they keep their body in excellent shape with vigorous training. When

high ‘g’ occurs, they squeeze their abdominal muscles – something they master during

training session. Normally they can sustain up to 5g without any problem.

4. This may be the first documented case of a static aero-elastic phenomenon known as

aerodynamic divergence. When an airplane flies, the force of the air on the wing at certain

angles can cause the leading edge to twist upwards. According to Anthony Fokker’s

autobiography, the strengthening of rear wing spar caused the torsional axis to move

rearward and downstream of the wing’s aerodynamic center. When it reached a certain

critical dynamic pressure, the aerodynamic twisting torque exceeded the elastic restoring

torque and hence the blunder. Solution : Strengthen the D-VIII’s front spar so that the

torsional axis remains ahead of the aerodynamic center, as was in the original design.

5. Yes. If the aircraft is heading west faster than the Earth rotates, it would appear to the

occupants of the plane that the sun was rising in the west. Here is one such experience filed

in NASA archive. Jerry Glasser and Ted Ross once took off after sunset in an SR-71. They

flew a westerly course and since the day/night terminator travels at only about a thousand

miles per hour at the equator and the SR-71 (a supersonic spy plane) travels much faster

than that, they watched the sun rising in the west. After a while, they turned south, the sun set

again. Later in the mission, they headed west again and observed the sun slowly rise over the

horizon. Perhaps they are only people to see sunrise twice a day, both at west!

6. To vary the Reynolds’s number by altering density(ρ). This allows the model size to be

smaller and/or velocities to be lower to achieve the necessary transonic parameters.

7. No, due to earth-moon tidal forces, the moon’s rotation long ago became synchronized with

its revolution about the earth. Therefore, to an observer at a given site on the moon, the earth

will always appear in the same point in the sky.

8. During day, we can see aircrafts because they are darker than the sky. Brightening them with

lights make them less visible. Stealths match their luminance with that of the sky (In fact, it

can vary its luminance since you might get a situation when overcast sky changes to sunny

sky). Modern Stealths use electro-optical photo-sensor which turns on and adjusts the hightech

illumination devices automatically.

9. Turbulence.

10. Because Saturn is tilted, when its rings are facing Earth edge-on they “disappear” from our

view. We now know this happens every 14 years or so. But poor Galileo was questioned

about his sanity when rings “disappeared” and then “reappeared” a few years later.

(Courtesy:Wings 2006 By IIT KGP)

Information On July 22nd Solar Eclipse (Surya Grahana) For Madhwas

Bhojana Vichara

We can take food upto Suryasta time on 21.7.2009.

For Children, patients, aged, & pregnants - upto 9.35pm on 21.7.2009

Grahana Phalani

Shubha phala :Vrushaba, kanyaa, tulaa, kumbha raashi

mishra phala : Mithuna, Vruschika, makara, meena

Ashubha phala :Karkaataka, Simha, dhanista, mesha

Shubha Phala - this Grahana may give you some good result

Mishra phala - it will be both Shubha + Ashubha Ashubha Phala - This Grahana may harm your progress. But just hearing this don’t get panic.

There are so many suggestions for overcoming the Ashubha Phala which you can do -

Even if your Rashi is not having Ashubha Phala, please do all that is mentioned below to get maximum punya phala during Grahana. “Grahana Period” is parva kaala - Whatever u r doing Grahana - the punya is more.

1. Do the pavitra Sparsha Snaana

2. Have Gopichandana, Mudradharana

3. Chant Vishnu Sahasra Naama /Harivayustuti/

shanaishcharakrutha Narasimha Stotra, Navagraha Stotra

4. If you don’t know how to chant all the above – u can simply chant

“HARE RAAMA HARE RAAMA RAAMA RAAMA HARE HARE | HARE KRISHNA HARE KRISHNA KRISHNA KRISHNA HARE HARE | Chanting of Sri Ramanama itself is equal to Vishnu Sahasra Naama

5. Do more Gayathri Japa for gents, Vijayarayara kavacha, Madhwanama etc for Ladies

Dos & Do nots during Grahana Period :-

1. Do Snaana - during sparsha period (if possible do Thirthasnaana)

2. Do japa, parayana, as much as possible during the period.

3. Do Yathashakthi Daana

4. After Moksha - take one more bath

5. Nirmalya Visarjana to be performed during grahana, the same nirmalya should be used for Tarpana.

6. Tarpanadhikarigalu - give tarpana to sarva pitrugalu.

7. During Grahana time, Don’t do mala mootra visarjana

8. Hastodaka on Grahana day not to be given as Yathigalu will be fasting on Grahana Day.

9. “Grahana Period” is parva kaala - Whatever u r doing Grahana - the punya is more.

10. Pregnants during Suryagrahana - Normally at the time of Surya Grahana, pregnant women are supposed to not come out of the house, with no sunlight entering either by doors or windows. This is to avoid harmful rays.

11. Please do not sleep during Grahana Time.

12. In case of death anniversary falling on the eclipse day, regular shraddha will be performed only after the eclipse is over.

13. We must use Dharbha (Grass) during eclipse time for protection of the water and food items from getting contaminated. Keep Dharbha on all the stored items like Water, Pickles, Milk, Curd, etc.,

14. Avoid looking at Sun directly with naked eyes

Stotra to be chanted for Surya Grahana -

yOsou vajradharO dEva: AdityaanaaM prabhurmata:| sUryagrahOparaagOtthagrahapIDaaM vyapOhatu | 1 | yOsou daMDadharO dEva: yamO mahiShavaahana: | sUryagrahOparaagOttha grahapIDaaM vyapOhatu | 2 | yOsou shUladharO dEva: pinaakI vRuShavaahana: | sUryagrahOparaagOtthagrahapIDaaM vyapOhatu | 3 |

(Source:MYP Yahoo Groups)

Left click is not opening the Drive or Folder

This is an usual problem one can find with their PC.Suddenly,once when u try to open the drive,it opens a Pop Up saying that you have to select a program to open this file.what you can normally do is that,Go to Browe-->My Computer-->C:-->Program files--->Explorer---->Select Explorer.exe and open it.Its a bit tedious.At the same time,how many times can u repeat the same procedure?When ever you have to open a drive,you have to follow the same procedure.Is there any permanent solution for this problem?The answer would be obviously YES.

1. First Go to RUN
2. Type "cmd" and press ENTER
3. Normally it will be C:Documents and Settings\Username>
4. type cd.. and press enter
5. Repeat the step 4 until you get C: alone on the screen
6. Now type attrib -a -s -h -r autorun.inf press ENTER
7. Then type del autorun.inf Press ENTER
8. Repeat the same for howmany ever disks you have.

That means,Lets say,I have two disks on my HDD....C & D
Now,by the above process i could delete autorun.inf file in C Drive.I have to do the same for my D Drive also...To do that,

in Command prompt type D: press Enter

1. Now type attrib -a -s -h -r autorun.inf press ENTER
2. Then type del autorun.inf Press ENTER

Do the same for all your drives and restart the system once.Then It will work fine.

Its because of a virus Autorun.inf,which will be hidden in all your disks.To prevent itself,that virus will disable the default action of the left click.Once you remove the file in all your disks,your problem is solved.

Multiple yahoo messengers

I generally try to be online on my yahoo messenger from 6 PM to 6 AM everyday. Since, I have a lot of contacts throughout the world, people come online at various times depending on their convenience.
The problem is that I have 5 roommates and each of us would like to stay online and also we have only one computer. Hence, It is difficult for me to be online for the whole 12 hrs. I can’t sacrifice my sleep for chatting with somebody. More over it looks foolish to keep your status online when you are sleeping. That’s why I try to be online until I’m awake or until I’m on my PC. As a roommate I can’t stop my other roommates from checking mail etc.. On the other hand I can’t keep my status “Offline”. My offline status may send wrong signals to the people who were coming online just then. People will think that I’m offline and they hesitate to send messages. But the fact remains that even though one of my friends is chatting on his messenger account, I would be sitting beside him. People who are trying to reach me by messengers wouldn’t be aware of this fact. I was trying to find a solution for this. I searched on net but I could find only those type of messengers in which we can be logged in on different accounts (like yahoo, GTalk, Msn etc…).But I was searching for the messenger which can enable me to login when one of my friends is logged in on the same messenger. My wish may sound stupid. But I found the solution. I want to share this information with the people who are trying for the same.

There are some messengers like Ymulti messenger etc…But I was not satisfied with them. I did a lot of things and ended up with the working solution for my problem. I want to give you a simple way of enabling this feature on your yahoo messenger. In fact you have to follow many steps but I have done all that and saved that file for you. What you have to do is just download the registration file which is available here and double click on it to install. Then you can start using any number of messengers with different logins.

Download registration file here

This registration file is being tested on all popular versions of Yahoo messengers( version 8 and 9)

Protect your mobile from theft - Solutions to recover stolen mobiles

(Click on the picture to visit the website of the respective application)
I went home for study holidays and came back to hostel on that dreadful day(When I was staying in hostel). I lost my first mobile that day. I even fought with my parents over that phone!!!I had lost my favourite N73 . I didn’t have the slightest clue on earth, if I could recover it . Mobiles were not allowed in the hostel, so I couldn’t even go and complain to the warden. Moreover I had exams from the next day. So ,I couldn’t do much about it. I hope most of us wouldn’t care much about the stolen mobiles, because of the fact that, it will take a great deal of time and effort for recovering it or some times despite all that you may not recover it . Many mobile users back-off when it comes to going to the police and complaining about their mobiles being lost. Thanks to the innovative developers, programmers who are coming up these days to provide you an easier way to recover your mobile;they given a sigh of relief to all those people who looking for their lost mobiles .It is notable that in the recent past many mobile manufacturers are providing these applications in the phone as an in-built accessory. But one of the more surprising fact is that the leading manufacturers like Nokia, Sony Ericsson are yet to provide these kind of applications along with their phone. Fortunately we have some applications of this kind which are compatible with most of these phones. I shall discuss some of them in brief here. So .....here go the 3 applications I am mentioning which can help you out in tracing your mobile.......(Which i think are worth the money you spend)

1. MobiGuard
2. MicroLMTS(Lost mobile tracking system)
3. Innova technologies VMS(Virtual mobile security)

MobiGuard

This is a simple application which is easy to use. This application gives you an option to lock your phone just by sending a sms. Moreover it will intimate SIM change on your phone to10 Predefined numbers along with the location of the GSM operator. It’s cost is $17.95 with one year validation.

MicroLMTS

This also intimates the change of SIM along with the location of GSM operator, but only to one predefined mobile number and two e-mail ids. The advantage of this over others is that the advanced version of this will not give the thief an option to uninstall the application. Its cost is 399 INR with one year validation.

VMS(Virtual mobile security)

Virtual mobile security is yet another application in this category that more powerful than the others. This application provides many advanced features which will make your work easy in tracing the mobile. It will show a message displaying owners details and starts shouting once the SIM is changed. It will forward the calls that the thief is making to the predefined numbers. Explore its features on its website. The option “Buy now” is disabled on that site because of technical problems. If you are really interested to get this application, you can contact the developer of this program on +919967236678

Important note: please check the compatibility of your device for the respective application before you go for buying it.

Virgin's entry in Indian telecom network-Provides more benifits to youth

Get paid for attending incoming calls........When somebody mentions this, I would either think they are out of their mind or they are drunk. But in this case you have to believe me(As i'm neither). I was surprised when I saw this interesting news on a popular mobile magazine. The new revolution in Indian telecom networks.....One of the popular network providers in UK is here in indian market now, to provide better features and compete with leading providers like Bharathi Airtel,Vodafone(previously was Hutch)etc..It entered the Indian market with a different strategy. According to the chairman of Virgin Mobiles Sir Richard Branson this strategy aimed at attracting the youth(which is vital for any market,specially where india is concerned.)

I feel I can provide better information about this in the form of Q&A

• Are they collaborating with any existing network providers or they are starting a new network?
  

The Virgin Mobiles is being introduced in india by Tata tele services,which is well known for its CDMA network(With the name “Tata Indicom”)

• Does it mean all Tata indicom subscribers will be shifted to Virgin mobiles?
  

The answer would be “No”. They are not going to touch the existing users of Tata indicom. At the same time, even if any tata indicom user wants to shift also, he can't do that. For that he should get a new Virgin connection. Tata indicom and virgin are two seperate networks provided by the same provider.

• Is it a GSM Network or CDMA?
  

It is CDMA network provider, but it introduced some handsets which contain RUIM(Removable user identity module) .To make people understand I can mention RUIM as SIM of CDMA network.

• What are the advantages of choosing Virgin?
  

These are the advantages with this Network
(a) Every time you attend a call, That will add 10 paise to your balance
(b) If you can spend Rs 18/- out of your purse every month,you can get 100 messages per day free and also less local call rates on the weekends(39 paise,be it mobile or landline. Weekend means friday,saturday.sunday here). In normal package you have to pay Rs 1/- for local(for first 2 mins).After 2 mins you can call any local network for 50 paise(No extra charge). We can be more clear about it's package once it gets announced officially.
(c)All vergin mobile's RUIM's will have a secret folder where you can store personal messages with password protection.
(d)V Bytes-This is the option enabled on every vergin mobile,which takes you to the V bytes portal just by one touch.Mind you,This is applicable only for Branded Vergin mobiles.

• From where can I get a Virgin connection?
  

It's introduced only in 50 main cities(17 sectors) in india. It will take some time for it to spread its network across the country. First check whether your city is there in the list provided in the website or not. If it is there, then you can go to the retailer in your respective city and get new connection. If it is not in the list, you may have to wait for some more time.

• What type of handsets they are offering?
  

At present they have announced 5 different colour handsets

• V Bling
• V Sleek
• V kewl
• V Trendy(which is yet to be announced)
• Nokia 2505
• V Swing

These handsets range is from Rs 1999/- to Rs 4799/-,which include handsets having MP3 player. FM Radio,1.3 MP camera etc...We can expect better kind of handsets from Virgin mobile in future.

see more about the handsets here

• Where can i get more information about Virgin mobiles?
  

You can visit Virgin mobile's official website or can search on some popular web encyclopedias like Wikipedia.

• What is it’s growth strategy ?
  

It might use the technique of MVNO(Mobile virtual network operator),which was used by it in other countries and became successful. This means that, it will buy space from other network providers and sell it under their name.

See Vergin mobile press release here(Pdf)

I hope my attempt of clearing your doubts regarding this matter has been successful. If not, I would be more than happy to answer your questions or to get your feedback.