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Thursday, 23 October 2014

HYDROGEN POWERED CAR

HYDROGEN POWERED CAR


A Hydrogen Powered Car is one that uses the gas hydrogen as a fuel source. There are basically two ways in which hydrogen is used:

1. Hydrogen is converted to electricity through the process of hydrolysis, powering electric motors driving the car along.

2. A conventional engine burns combustible hydrogen gas in the place of diesel or petrol. An adapted car engine drives the wheels around propelling the vehicle forwards/backwards, in exactly the same way as a petrol / diesel fuelled car.

THE MAJOR ADVANTAGE OF THIS CAR IS THAT THE EXHAUST OF A HYDROGEN POWERED CAR - WATER IS THE ONLY BY-PRODUCT.

A fuel cell is an essential part of a hydrogen car producing electricity to drive motors. It consists of three parts - the ANODE, CATHODE and CATALYST.

Hydrogen is fed under pressure into the ANODE where it produces electrons and they are conducted through the ANODE and around the external circuit driving the motors. Water is the only by-product and this is produced at the CATHODE.
One fuel cell is not enough to produce meaningful power, so cells are arranged in stacks

The CATALYST is essential as it starts the chemical reactions necessary to ‘free, electrons, creating electricity.


MECHANICAL ENGINEERING TERMS 3

MECHANICAL ENGINEERING TERMS:-


1.)LEAF SPRING – A spring made up of a series of flat steel plates of graduated length, assembled one on top of another.

2.)LEVEL CONTROL (automatic) – A suspension system which compensates for variations in load in the rear of the car, positioning the rear at a predesigned level regardless of load.

3.)LIMITED SLIP DIFFERENTIAL – A differential allowing unequal torques to be delivered to the axle shafts.

4.)LINKAGE POWER STEERING – A type of power steering in which the power steering units (power cylinder and valve) are an integral part of the steering linkage.

5.)LORD LEVELING SYSTEM– A system used to level a vehicle that is heavily loaded.


6.)MECHANICAL BRAKES– Brakes operated by mechanical linkage (cables and levers) between the brake pedal and the brakes at the car wheels.

7.)METALLIC BRAKE LINING – A lining having metallic properties used to provide high temperature braking efficiency.

8.)PNEUMATIC TYRES – Tyres that are filled with air to the required pressure.

9.)POWER BOOSTER – A device used to increase the drivers brake pedal force going to the master cylinder, without an accompanying increase in pedal travel.

10.)POWER STEERING – A device that uses hydraulic pressure to multiply the drivers effort as he turns the steering wheel so that less steering effort is required.

11.)SYNCHROMESH – A device in the transmission that synchronizes gears about to be meshed so that there will not be any gear clash. Also called SYCHRONIZER.

12.)TACTILE SENSOR – A sensor that allows the vehicle operator to feel when a certain condition is reached. Disc brake pads are made to vibrate when worn to the point where replacement is necessary and this vibration is felt in the brake pedal.

13.)THROWOUT BEARING – Bearing operated by the clutch linkage used to disengage the clutch.


14.)TIE RODS – In the steering system, the rods that link the pitman arm to the steering knuckle arms.

15.)TILT STEERING WHEEL – A type of steering wheel which can be tilted at various angles, due to a flex joint in the steering shaft.

16.)TRIPLE POINT JOINT – A universal joint using bearings on three axes to maintain a constant plane of drive, making it a constant velocity joint.

17.)TUBED TYRE– Inside the tyre, there is an endless tube fitted with a valve. Air is forced through the valve and is retained inside the tube under pressure. The air acts as the cushioning medium.

18.)TUBELESS TYRE – A tyre that has the air sealed between the rim and tyre and does not use an inner tube.

19.)TWO DISC CLUTCH – A clutch having two friction discs for additional holding power used in heavy duty equipment.

20.)UNIVERSAL JOINT – The part of the drive line assembly that allows for a change in angle of the drive line as the vehicle goes over bumps.

Sunday, 28 September 2014

SOME AMAZING FACTS OF HEART


SOME AMAZING FACTS OF HEART



  1. Cocaine affects the heart’s electrical activity and causes spasm of the arteries, which can lead to a heart attack or stroke, even in healthy people.
  2. Some heavy snorers may have a condition called obtrusive sleep apnea (OSA), which can negatively affect the heart.
  3. The heart pumps blood to almost all of the body’s 75 trillion cells. Only the corneas receive no blood supply.
  4. During an average lifetime, the heart will pump nearly 1.5 million barrels of blood—enough to fill 200 train tank cars.
  5. Five percent of blood supplies the heart, 15-20% goes to the brain and central nervous system, and 22% goes to the kidneys.
  6. The “thump-thump” of a heartbeat is the sound made by the four valves of the heart closing.
  7. The average adult heart beats 72 times a minute; 100,000 times a day; 3,600,000 times a year; and 2.5 billion times during a lifetime.
  8. The volume of blood pumped by the heart can vary over a wide range, from five to 30 liters per minute.
  9. Though weighing only 11 ounces on average, a healthy heart pumps 2,000 gallons of blood through 60,000 miles of blood vessels each day.
  10. Because the heart has its own electrical impulse, it can continue to beat even when separated from the body, as long as it has an adequate supply of oxygen.
  11. A newborn baby has about one cup of blood in circulation. An adult human has about four to five quarts which the heart pumps to all the tissues and to and from the lungs in about one minute while beating 75 times.
  12. The heart begins beating at four weeks after conception and does not stop until death.
  13. A woman’s heart typically beats faster than a man’s. The heart of an average man beats approximately 70 times a minute, whereas the average woman has a heart rate of 78 beats per minute.
  14. Physician Erasistratus of Chios (304-250 B.C.) was the first to discover that the heart functioned as a natural pump.
  15. Every day 2,700 people die of heart disease.
  16. The risk of heart disease for inactive people is double that of people who get regular exercise.
  17. The first successful heart transplant was performed in Cape Town, South Africa in 1967.
  18. The pressure created in the heart during a heartbeat is enough to squirt blood a distance of thirty feet.
  19. Each minute your heart pumps 1.5 gallons of blood.
  20. Heart disease has been found in 3000 year old MUMMIES.
  21. The BLUE WHALE has largest heart weighing over 1500 pounds.
  22. Happiness and a strong sense of emotional vitality helps lower your risk of heart disease.
  23. A normal heart valve is about the size of a half dollar.
  24. The more education you have, the lower your risk of heart disease.
  25. A good belly laugh can send 20% more blood flowing through your entire body.
  26. A man’s heart weighs about 10 ounces, while a woman’s heart weighs approximately 8 ounces.


Saturday, 27 September 2014

GA Questions - RBI Assistant Exam - 26 Sept-2014 (Both Shift)

GA Questions - RBI Assistant Exam - 26 Sept-2014 (Both Shift)


1. When did India become member of WTO? - 1995
2. RBI formed in which Year? - 1935
3. Any Time Milk by which company? - Amul
4. India's first Postal Savings Office ATM located in which city? - Chennai
5. First newspaper of india-bengal gazette
6. Tibor full form - Tokyo Interbank Offered Rate
7. Japan's dance - Odori and Mai
8. Current CRR - 4%
9. How much interest paid by rbi on deposit of CRR? Zero
10. Prime minister of UK - David Cameroon
11. Newly elected deputy governor - S.S. Mundra
12. Total imports done in 2013-14 ? - $616.7 billion
13. Total exports done in 2013-14 ? - $442.4 billion
14. Pound sterling is the currency of which country - United Kingdom
15. PM Modi is which PM of India? 15th PM
16. Which Lok Sabha election was held recently? - 16th
17. Netherlands Capital? - Amsterdam
18. India wins how many gold in CWG? 15
19. NASSCOM chairman? R. Chandrashekaran
20. Best film (hindi) in Nationals? - Jolly LLB
21. GDP for 2014-15 by IMF? - 5.4%
22. India's first motion picture? - Raja Harishchandra
23. India's first newspaper? - Bengal Gazette
24. One question from whole price index.
25. Total women population in the world as per census? -
26. Press council of India formed in which year? - 1978
27. Indira Awas Yojna which year formed? - 1996
28. Which of following country is not a male dominated country? - USA
29. Currency of UK ? - Pound Sterling
30. Minister of Railways ? - Sadananda Gowda
31. One question on China's development index.
32. Newly granted license for which two banks ? - IDFC and Bandhan
33. Who among the following is not a RBI deputy governors ?
34. World Heart day? - 29 September
35. Current Foreign Exchange reserve of India? - 319,390 million $ US
36. WTO head quarters? - Geneva
37. RBI proposed for 5th deputy governor by post - Chief Operating Officer
38. One question was from world bank (option given ..not part of wb)
39. One question from tag line of bank
40. Which is not nationalised bank from option
41. No question from budget
42. Shadow banking committee headed by - T. Vijay Bhaskar
43. Overhead is related which sport - Netball
44. Who is lady election commission officer? V.S. Ramadevi
45. FDI in Public sector bank? - 20%
46. Summer 2016 games held in? Rio De Janeiro
47. Which do not work under RBI ? Options were IMF, IFC, etc - Answer is IMF

SOME VERY USEFUL SHORT FORMS

   SOME VERY USEFUL SHORT FORMS   


 1.) GOOGLE : Global Organization Of Oriented Group Language Of Earth .
2.) YAHOO : Yet Another Hierarchical Officious Oracle .
3.) WINDOW : Wide Interactive Network Development for Office work Solution
4.) COMPUTER : Common Oriented Machine Particularly United and used under Technical and Educational Research.
5.) VIRUS : Vital Information Resources Under Siege .
6.) UMTS : Universal Mobile Telecommunications System .
7.) AMOLED : Active-matrix organic light-emitting diode
8.) OLED : Organic light-emitting diode
9.) IMEI: International Mobile Equipment Identity .
10.) ESN: Electronic Serial Number .
11.) UPS: uninterruptible power supply .
12. HDMI: High-Definition Multimedia Interface
13.) VPN: virtual private network
14.)APN: Access Point Name
15.) SIM: Subscriber Identity Module
16.) LED: Light emitting diode.
17.) DLNA: Digital Living Network Alliance
18.) RAM: Random access memory.
19.) ROM: Read only memory.
20.) VGA: Video Graphics Array
21.) QVGA: Quarter Video Graphics Array
22.) WVGA: Wide video graphics array.
23.) WXGA: Widescreen Extended Graphics Array
24.)USB: Universal serial Bus
25.) WLAN: Wireless Local Area Network
26.) PPI: Pixels Per Inch
27.) LCD: Liquid Crystal Display.
28.) HSDPA: High speed down-link packet access.
29.) HSUPA: High-Speed Uplink Packet Access
30.) HSPA: High Speed Packet Access
31.) GPRS: General Packet Radio Service
32.) EDGE: Enhanced Data Rates for Global Evolution
33.)NFC: Near field communication
34.) OTG: on-the-go
35.) S-LCD: Super Liquid Crystal Display
36.) O.S: Operating system.
37.) SNS: Social network service
38.) H.S: HOTSPOT
39.) P.O.I: point of interest
40.)GPS: Global Positioning System
41.)DVD: Digital Video Disk
42.)DTP: Desk top publishing.
43.) DNSE: Digital natural sound engine .
44.) OVI: Ohio Video Intranet
45.)CDMA: Code Division Multiple Access
46.) WCDMA: Wide-band Code Division Multiple Access
47.)GSM: Global System for Mobile Communications
48.)WI-FI: Wireless Fidelity
49.) DIVX: Digital internet video access.
50.) .APK: authenticated public key.
51.) J2ME: java 2 micro edition
52.) SIS: installation source.
53.) DELL: Digital electronic link library.
54.)ACER: Acquisition Collaboration Experimentation Reflection
55.)RSS: Really simple syndication
56.) TFT: thin film transistor
57.) AMR: Adaptive Multi-Rate
58.) MPEG: moving pictures experts group
59.)IVRS: Interactive Voice Response System
60.) HP: Hewlett Packard