Thursday, 21 July 2016

Every Day Science (Study Notes-Experiments) Quiz for Competitive Exams

Dear Readers. Good news, We are here with Every Day Science (Study Notes-Experiments) for Competitive Exams. You know that Every Day science is most important part for every competitive examination like RRB NTPC Exam, SSC Exams, LIC AAO, SBI PO, SBI Clerk Exams as well as IBPS PO and Clerical exams etc. So, After a series Static General Knowledge (GK) , General Awareness and Current Affairs 2016 with Daily Current Affairs Quiz, Daily GK Quiz, News and Analysis for UPSC ,IAS, IBPS. MM team always presents GK Questions and Answers on Everyday Science for your upcoming exams free study notes series. You prepare both General Science and Scientific facts MCQs in GK section.

General Science Questions and Answers

Everyday Science Multiple Choice Questions (MCQs) 10 MCQs Quiz. The following General Science questions are from Biology, Chemistry, Physics and Atmospheric Studies. Find answers to the Everyday Science MCQs at the bottom of the page.

प्रिय पाठक/ स्टेटिक सामान्य ज्ञान के तहत आज हम दैनिक विज्ञान के तहत महत्वपूर्ण वैज्ञानिक उपकरणों की सूची प्रस्तुत कर रहे है। आप सभी जानते है कि वर्तमान में आयोजित रेलवे भर्ती बोर्ड परीक्षा, एसएससी परीक्षा, बैंक पीओ, लिपिक भर्ती परीक्षा सहित सभी स्टेट लेवल की प्रतियोगी परीक्षाओं में 1 अथवा 2 प्रश्न दैनिक विज्ञान के विषय से भी पूछ लिये जाते है। इस दृष्टि से इस विषय पर एमएम टीम द्वारा समय समय पर आपको बहुत ही उपयोगी स्टडी नोट्स उपलब्ध कराने का पूर्ण प्रयास किया जाता है। 

1. एयरोमीटर ; (Aerometer) - इस उपकरण का प्रयोग वायु एवं गैस का भार तथा घनत्व ज्ञात करने में होता है।
Aerometer is An instrument used to measure the mass and density of gases.

2. अल्टीमीटर ; (Altimeter) - इसका उपयोग उड़ते हुए विमान को ऊँचाई नापने के लिए किया जाता है।
Altimeter- An altimeter or an altitude meter is an instrument used to measure the altitude of an object above a fixed level. The measurement of altitude is called altimetry, which is related to the term bathymetry, the measurement of depth under water.

3. अमीटर ; (Ammeter) - इसका उपयोग विद्युत् धारा को मापने के लिए किया जाता है।
Ammeter - An ammeter is a measuring instrument used to measure the current in a circuit. Electric currents are measured in amperes (A), hence the name. Instruments used to measure smaller currents, in the milliampere or microampere range, are designated as milliammeters or microammeters.

4. ओडियामीटर ; (Audiometer) - यह उपकरण ध्वनि की तीवं्रता मापने के काम में आता है।
Audiometer - An audiometer is a machine used for evaluating hearing acuity. They usually consist of an embedded hardware unit connected to a pair of headphones and a test subject feedback button, sometimes controlled by a standard PC. Such systems can also be used with bone vibrators, to test conductive hearing mechanisms k.

5. बैरोग्राफ ; (Berograph) - इसके द्वारा वायुमण्डल के दाब में होने वाले परिवर्तन को मापा जाता है।

6. बैरोमीटर ; (Berometer) - यह उपकरण वायु दाब मापने के काम में आता है।
Berometer - an instrument measuring atmospheric pressure, used especially in forecasting the weather and determining altitude.

7. बाइनोक्यूलर ; (Binocular) - यह उपकरण दूर की वस्तुएँ देखने के काम में आता है।
Binocular - Binoculars, field glasses or binocular telescopes are a pair of identical or mirror-symmetrical telescopes mounted side-by-side and aligned to point accurately in the same direction, allowing the viewer to use both eyes (binocular vision) when viewing distant objects. Most are sized to be held using both hands, although sizes vary widely from opera glasses to large pedestal mounted military models.

8. कैलीपर्स ; (Calipers) - इसके द्वारा बेलनाकार वस्तुओं के अन्दर तथा बाहर के व्यास मापे जाते है तथा इससे वस्तु की मोटाई भी मापी जाती है।
Calipers- A caliper (British spelling also calliper, or in plurale tantum sense a pair of calipers) is a device used to measure the distance between two opposite sides of an object. A caliper can be as simple as a compass with inward or outward-facing points. The tips of the caliper are adjusted to fit across the points to be measured, the caliper is then removed and the distance read by measuring between the tips with a measuring tool, such as a ruler.

9. कार्डियोग्राम ; (Cardiogram) - इसके द्वारा हृदय-गति की जाँच की जाती है। इसको इलैक्ट्रो कार्डियोग्राम भी कहते है।
Cardiogram - a record of muscle activity within the heart made by a cardiograph.

10. सिनेमाटाग्राफ ; (Cinematograph) - इस उपकरण को छोटी-छोटी फिल्म को बड़ा करके पर्दे पर लगातार क्रम में प्रक्षेपण के लिए प्रयोग किया जाता है।

11. डिक्टाफोन ; (Dictaphone) - इसका उपयोग अपनी बात तथा आदेश दूसरे व्यक्ति को सुनाने के लिए रिकाॅर्ड किया जाता है। यह प्रायः आॅफिसों में प्रयोग किया जाता है।

12. नमनमापी - यह उपकरण किसी स्थान पर नमन कोण मापने के लिए प्रयोग किया जाता है।

13. फैदोमीटर ; (Fathometer) - यह यंत्र समुद्र की गहराई नापने के काम आता है।
Fathometer - Fathometer a type of echo sounder.

14. गैल्वेनोमीटर ; (Galvanometer) - इस यंत्र का उपयोग छोटे विद्युत् परिपथों में विद्युत धारा की दिशा एवं मात्रा ज्ञात करने में किया जाता है।
Galvanometer - is an instrument for detecting and measuring small electric currents.

15. गाइगर मूल काउण्डर ; (Geiger-Muller Counter) - इस उपकरण की सहायता से रेडियो ऐक्टिव स्त्रोत के विकिरण की गणना की जाती है।
Geiger-Muller Counter - A Geiger counter (Geiger-Muller tube) is a device used for the detection and measurement of all types of radiation: alpha, beta and gamma radiation. Basically it consists of a pair of electrodes surrounded by a gas. The electrodes have a high voltage across them.

16. हाइड्रोमीटर ; (Hydrometer) - इस उपकरण के द्वारा द्रवों का आपेक्षिक घनत्व ज्ञात करते है।
Hydrometer is an instrument for measuring the density of liquids.

17. हाइड्रोफोन ; (Hydropphone) - यह पानी के अन्दर ध्वनि-तरंगो की गणना करने में काम आने वाला उपकरण है।
Hydrophone - A hydrophone is a microphone designed to be used underwater for recording or listening to underwater sound. Most hydrophones are based on a piezoelectric transducer that generates electricity when subjected to a pressure change.

18. हाइग्रोमीटर ; (Hygrometer) - इसकी सहायता से वायुमण्डल से व्याप्त आर्द्रता नापी जाती है।
Hygrometer - A hygrometer is an instrument used for measuring the moisture content in the atmosphere. Humidity measurement instruments usually rely on measurements of some other quantity such as temperature, pressure, mass or a mechanical or electrical change in a substance as moisture is absorbed.

19. माइक्रोमीटर - यह एक प्रकार का पैमाना है जिसकी सहायता से मिमी के हजारवें भाग को ज्ञात कर सकते है।
Micrometer a gauge which measures small distances or thicknesses between its two faces, one of which can be moved away from or towards the other by turning a screw with a fine thread.

20. माइक्रोस्कोप - यह छोटी वस्तुओं को आवर्धित करके बड़ा कर देता है, अतः जिन वस्तुओं को आँखों से नही देखा जा सकता, उन्हें इस उपकरण से देख सकते है।
Micro Scope - an optical instrument used for viewing very small objects, such as mineral samples or animal or plant cells, typically magnified several hundred times.

21. पायरोमीटर- दूर स्थित वस्तुआंे के ताप को ज्ञात करने हेतु इस यंत्र का प्रयोग किया जाता है।
Pyrometeran instrument for measuring high temperatures, especially in furnaces and kilns.

"radiation pyrometer"

22. रडार - यह यंत्र अन्तरिक्ष में आने-जाने वाले वायुयानों के संसूचन और उनकी स्थिति ज्ञात करने के काम आता है।
Radar is an object-detection system that uses radio waves to determine the range, angle, or velocity of objects. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain. A radar system consists of a transmitter producing electromagnetic waves in the radio or microwaves domain, an emitting antenna, a receiving antenna (separate or the same as the previous one) to capture any returns from objects in the path of the emitted signal, a receiver and processor to determine properties of the object(s).

23. रेनगेज - यह वर्षा नापने के काम में आने वाला उपकरण है।
Rain Gauge - a device for collecting and measuring the amount of rain which falls.

24. सिसमोग्राफ - यह भूकम्प का पता लगाने वाला उपकरण है।
Seismograph - an instrument that measures and records details of earthquakes, such as force and duration.

25. सेफ्टी लेम्प - यह प्रकाश के लिए खानों में उपयोग होने वाला उदाहरण है। इसकी सहायता से खानों में होने वाले विस्फोट को बचाया जा सकता है।

Safety lamp - A safety lamp is any of several types of lamp that provides illumination in coal mines and is designed to operate in air that may contain coal dust or gases both of which are potentially flammable or explosive. Until the development of effective electric lamps in the early 1900s miners used flame lamps to provide illumination. Open flame lamps could ignite flammable gases which collected in mines, causing explosions and so safety lamps were developed to enclose the flame and prevent it from igniting the surrounding atmosphere. Flame safety lamps have been replaced in mining with sealed explosion-proof electric lights.

26. स्पीडो मीटर - यह गति को प्रदर्शित करने वाला उपकरण है, जो कि कार, ट्रक आदि वाहनों में लगा रहता है।
Speedometer- A speedometer or a speed meter is a gauge that measures and displays the instantaneous speed of a vehicle. Now universally fitted to motor vehicles, they started to be available as options in the 1900s, and as standard equipment from about 1910 on wards. Speedometers for other vehicles have specific names and use other means of sensing speed. For a boat, this is a pit log. For an aircraft, this is an airspeed indicator.

Charles Babbage is credited with creating an early type of a speedometer, which were usually fitted to locomotives.

27. टेलीप्रिन्टर - यह समाचार प्राप्त करने का उपकरण है। इसकी सहायता से स्वतः ही समाचार टाइप होते रहते है।
Teleprinter - a device for transmitting telegraph messages as they are keyed, and for printing messages received.

28. टेलीस्कोप - इस उपकरण की सहायता से दूर की वस्तुओं को स्पष्ट देखा जा सकता है।
Telescope - A telescope is an optical instrument that aids in the observation of remote objects by collecting electromagnetic radiation (such as visible light). The first known practical telescopes were invented in the Netherlands at the beginning of the 1600s, by using glass lenses. They found use in both terrestrial applications and astronomy.

29. थर्मोस्टेट - इसके प्रयोग से किसी वस्तु का ताप एक निश्चित बिन्दु तक बनाये रखा जाता है।
Thermostat : A thermostat is a component which senses the temperature of a system so that the system's temperature is maintained near a desired setpoint. The thermostat does this by switching heating or cooling devices on or off, or regulating the flow of a heat transfer fluid as needed, to maintain the correct temperature. Thermostats are used in any device or system that heats or cools to a setpoint temperature, examples include building heating, central heating, air conditioner, HVAC system, as well as kitchen equipment including ovens and refrigerators and medical and scientific incubators.
The first electric room thermostat was invented in 1883 by Warren S. Johnson of Wisconsin. Albert Butz invented the electric thermostat and patented it in 1886.

30. Transistor
A transistor is a semiconductor device used to amplify or switch electronic signals and electrical power. It is composed of semiconductor material usually with at least three terminals for connection to an external circuit.

31. Biosensor
A biosensor is an analytical device, used for the detection of an analyte, that combines a biological component with a physicochemical detector. The sensitive biological element (e.g. tissue, microorganisms, organelles, cell receptors, enzymes, antibodies, nucleic acids, etc.) is a biologically derived material or biomimetic component that interacts (binds or recognizes) with the analyte under study. The biologically sensitive elements can also be created by biological engineering. The transducer or the detector element (works in a physicochemical way; optical, piezoelectric, electrochemical, etc.) transforms the signal resulting from the interaction of the analyte with the biological element into another signal (i.e., transduces) that can be more easily measured and quantified. The biosensor reader device with the associated electronics or signal processors that are primarily responsible for the display of the results in a user-friendly way. This sometimes accounts for the most expensive part of the sensor device, however it is possible to generate a user friendly display that includes transducer and sensitive element (holographic sensor). The readers are usually custom-designed and manufactured to suit the different working principles of biosensors.

Here we are posting some Sampe Important General Science Questions and Answers for upcoming competitive examinations.
Q.1. A transistor is most likely to be found in a– 
(A) fuse 
(B) fluorescent lamp 
(C) hearing aid 
(D) wrist watch 
Ans : (c)

Q.2. The density of water is __________.
(A) 1 g/cm3
(B) 1.5 g/cm3
(C) 2 g/cm3
(D) none of these
Ans : (a)

Q.3. The average adult has a blood volume of about __________ liters.
(A) 4
(B) 5
(C) 6
(D) 7
(E) None of These
Ans : (b)

Q.4. CNG stands for?
(A) Converted Natural Gas
(B) Conduced Natural Gas
(C) Conducted Natural Gas
(D) Compressed Natural Gas
(E) None of These
Ans : (d)

Q.5. X-rays were discovered by ______________.
(A) Rontgen
(B) Thomson
(C) Rutherford
(D) Bacquerel
(E) None of These
Ans : (a)

Q.6. Urine is produced in __________.
(A) Kidneys
(B) Lungs
(C) Large intestine
(D) Liver
(E) None of These
Ans : (a)

Q.7.  Biosensor is used to measure?
(A) Blood glucose level
(B) The body pH value
(C) Amount of hemoglobin
(D) Salinity in Urine
(E) None of These
Ans : (a)

Q.8. The natural fats and oils are composed of
(A) Carbon, Hydrogen and Oxygen
(B) Carbon, Hydrogen and Nitrogen
(C) Carbon, Oxygen and Nitrogen
(D) Hydrogen, Oxygen and Nitrogen
(E) None of These
Ans : (a)

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