General Knowledge - General Awareness Quiz - Questions and Answers, GK 2015

1. In which country, a new form gold that is as light as air was created by scientists?

2. The headquarters of the World Meteorological Organization (WMO) are located in which country?

3. Which one of the following is not a member country of the Mano River Union?

4. Which is the most widely used fuel-oxidiser combination in cryogenic rocket engines?

5. Which was the host country of recent ASEAN Defence Ministers Meeting (ADMM)-Plus?

6. Which of the following is the prevaling system for appointment of Judges to High Court and Supreme Court of India?

7. India's first private Greenfield airport is located in which state?

8. The Rodriguez Triple Junction is a geological junction in which ocean?

9. Who is the head of the Rajya Sabha panel on the constitutional amendment Bill regarding National Goods and Services Tax ( GST )?

10. Who among the following has been crowned the prestigious UK Crime Writer's Association Gold Dagger award?

General Knowledge

1. World Geography -Test-01
2. World Geography -Test-02
3. World Geography -Test-03
4. Geography of India -Test-01
5. Geography of India -Test-02
6. Geography of India -Test-03
7. Geography of India -Test-04
8. Geography of India -Test-05
9. History of India - Test - 01
10. History of India - Test - 02
11. History of India - Test - 03
12. History of India - Test - 04
13. History of India - Test - 05
14. History of India - Test - 06
15. History of India - Test - 07
16. INM-Test-01
17. INM-Test-02
18. INM-Test-03
19. INM-Test-04
20. INM-Test-05
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  • Simple Science

    The Common Pump or Lifting Pump

    Pumps and their Value to Man:
    Place a tube containing a close-fitting piston in a vessel of water, as shown in Figure. Then raise the piston with the hand and notice that the water rises in the piston tube. The rise of water in the piston tube is similar to the raising of lemonade through a straw. The atmosphere presses with a force of 15 pounds upon every square inch of water in the large vessel, and forces some of it into the space left vacant by the retreating piston. The common pump works in a similar manner. It consists of a piston or plunger which moves back and forth in an air-tight cylinder, and contains an outward opening valve through which water and air can pass. From the bottom of the cylinder a tube runs down into the well or reservoir, and water from the well has access to the cylinder through another outward-moving valve. In practice the tube is known as the suction pipe, and its valve as the suction valve.

    In order to understand the action of a pump, we will suppose that no water is in the pump, and we will pump until a stream issues from the spout. The various stages are represented diagrammatically by Figure. In (1) the entire pump is empty of water but full of air at atmospheric pressure, and both valves are closed. In (2) the plunger is being raised and is lifting the column of air that rests on it. The air and water in the inlet pipe, being thus partially relieved of downward pressure, are pushed up by the atmospheric pressure on the surface of the water in the well. When the piston moves downward as in (3), the valve in the pipe closes by its own weight, and the air in the cylinder escapes through the valve in the plunger. In (4) the piston is again rising, repeating the process of (2). In (5) the process of (3) is being repeated, but water instead of air is escaping through the valve in the plunger. In (6) the process of (2) is being repeated, but the water has reached the spout and is flowing out.

    After the pump is in condition (6), motion of the plunger is followed by a more or less regular discharge of water through the spout, and the quantity of water which gushes forth depends upon the speed with which the piston is moved. A strong man giving quick strokes can produce a large flow; a child, on the other hand, is able to produce only a thin stream. Whoever pumps must exert sufficient force to lift the water from the surface of the well to the spout exit. For this reason the pump has received the name of lifting pump.

    FIG. - The atmosphere pressing downward on a pushes water after the rising piston b.

    FIG. Diagram of the process of pumping.

    Chourishi Systems