When were bar code scanners invented?


Options: 1940s,    1950s,    1970s,    1960s

Ans:C,C






More inventions Related questions:


Which organ of United Nations has ceased to be operational?
Options: Trusteeship Council,    Secretariat,    International Court of Justice,    Economic and Social Council

Ans:A,A


What now-ubiquitous device was invented by Zenith engineer Eugene Polley in 1955?
Options: Microwave oven,    Remote control,    VCR,    Calculator

Ans:B,B


The subatomic particles arriving from outer space having high energy are called
Options: protons,    electrons,    cosmic rays,    None of the above

Ans:C,C


It is easier to roll a stone up a sloping road than to lift it vertical upwards because
Options: work done in rolling is more than in lifting,    work done in lifting the stone is equal to rolling it,    work done in both is same but the rate of doing work is less in rolling,    work done in rolling a stone is less than in lifting it

Ans:D,D


Who is the English physicist responsible for the 'Big Bang Theory'?
Options: Albert Einstein,    Michael Skube,    George Gamow,    Roger Penrose

Ans:C,C


Who is the author of the book 'No Full Stops in India'?
Options: Raj Mohan Gandhi,    Shyam lal,    E.M. Forster,    Mark Tully

Ans:D,D


Zone refining is used for the purification of
Options: Au,    Ge,    Ag,    Cu

Ans:B,B


The principal copper deposits of India lie in which of the following places?
Options: Hazaribag and Singbhum of Bihar,    Khetri and Daribo areas of Rajasthan,    Anantapur in Andhra Pradesh,    Siwaliks in Uttar Pradesh and in Karnataka

Ans:A,A


National Defence Academy is situated at
Options: Khadakvasla,    New Delhi,    Wellington,    Dehradun

Ans:A,A


The headquarters of the National Power Training institute is located in
Options: Pune,    Bhopal,    Faridabad,    Lucknow

Ans:C,C


The ocean water is saline due to
Options: evaporation of its surface,    volume of fresh water added by rainfall,    salts are already present in sea water,    both (a) and (b)

Ans:D,D


Atoms are composed of
Options: electrons and protons,    electrons only,    protons only,    electrons and nuclei

Ans:D,D


Mishra Dhatu Nigam Limited (MIDHANI) was established in
Options: 1958,    1964,    1973,    1988

Ans:C,C


What Sir Isaac Newton invented?
Options: Reflecting telescope,    Chronometer,    Microscope,    Spectacles

Ans:A,A


'.JPG' extension refers usually to what kind of file?
Options: System file,    Animation/movie file,    MS Encarta document,    Image file

Ans:D,D


What Australian player was known as 'Fruitfly' amongst the rest of the team?
Options: Geoff Lawson,    Merv Hughes,    Mike Veletta,    Mike Whitney

Ans:B,B


Monotremes are unique mammals because they
Options: posses hair,    give birth to live young,    secret milk in a pouch,    lay eggs

Ans:D,D


The head quarters of the International Red Cross is situated in
Options: Vienna,    Paris,    Hague,    Geneva

Ans:D,D


Pulses are a good source of
Options: carbohydrates,    fats,    proteins,    vitamins

Ans:C,C


In India the first television programme was broadcasted in
Options: 1959,    1965,    1976,    1957

Ans:A,A


Your computer has gradually slowed down. What's the most likely cause?
Options: Overheating,    Your processor chip is just getting old,    Adware/spyware is infecting your PC,    You dropped a sandwich in your computer

Ans:C,C


The light of distant stars is affected by
Options: the earth's atmosphere,    interstellar dust,    both (a) and (b),    None of the above

Ans:C,C


When and where athletics introduced in the Olympics?
Options: 1896 at Athens,    1900 at Paris,    1992 at Barcelona,    1995 at Athens

Ans:A,A


'Neela Chand' which won the Vyas Samman for 1992 is written by
Options: Shiv Prasad Singh,    Subash Mukhopadhyay,    Ram Vilas Sharma,    Ramakant Rath

Ans:A,A


For whom high heeled shoes were invented?
Options: Cleopatra,    Queen Elizabeth I,    King Louis the XIV,    King Charles II

Ans:C,C


The term used to describe money that flows into a country to take advantage of high rates of interest is called
Options: hot money,    hard sector,    hard currency,    None of the above

Ans:A,A


The originating in the Himalayan mountain complex consists of how many distinct drainage systems of the Indian Subcontinent?
Options: Two,    Three,    Four,    Five

Ans:B,B


Which of the following is not a chief organ of the United Nations Organisations?
Options: International Labour Organisation,    Security Council,    International Court of Justice,    General Assembly

Ans:A,A


The number of atoms present in 21.6 gram of silver (atomic weight = 108) are same as the molecules in
Options: 1.8 gram of H2O,    12 moles of KMnO4,    0.6N H2SO4,    4.6 gram of C2H5OH

Ans:B,B


The low heating capacity of which of the types of coal reduces its value as an industrial fuel?
Options: Anthracite,    Bituminous coal,    Lignite,    Peat

Ans:D,D


MISA stands for
Options: Maintenance of Internal Security Act,    Multinational Internal Society Authority,    Movement for Indian System Act,    None of the above

Ans:A,A


Which of these is a valid e-mail address?
Options: professor.at.learnthenet,    www.learnthenet.com,    professor@learnthenet.com,    professor@learnthenet

Ans:C,C


The association of the rupee with pound sterling as the intervention currency was broken in
Options: 1990,    1991,    1992,    1993

Ans:C,C


What is the S.I. unit of temperature?
Options: Kelvin,    Celsius,    Centigrade,    Fahrenheit

Ans:A,A


Rainbow is due to
Options: absorption of sunlight in minute water droplets,    diffusion of sunlight through water droplets,    ionisation of water deposits,    refraction and reflection of sunlight by water droplets

Ans:D,D


Though Ashoka had many sons, the inscriptions mentioned only one who is not mentioned in any other source. He is
Options: Kunala,    Tivara,    Mahendra,    Jalauka

Ans:B,B


How much districts are there in Punjab?
Options: 13,    17,    22,    15

Ans:C,C


Normally the Commonwealth Games are held at intervals of
Options: 3 years,    4 years,    5 years,    there is no fixed interval

Ans:B,B


National School of Mines is located in ?
Options: Dhanbad,    Kavalpur,    Udaipur,    Hyderabad

Ans:A,A


When measuring the characteristics of a small-signal amplifier, say for a radio receiver, one might be concerned with its "Noise..."?
Options: Fundamental,    Fall,    Force,    Figure

Ans:D,D


The tribe residing in Meghalaya is
Options: Garos,    Khas,    Kol,    Murias

Ans:A,A


What does ICMP stand for?
Options: Internet Connection Modem Protocol,    Intranet Control Message Program,    Internal Conflict Management Program,    Internet Control Message Protocol

Ans:D,D


The panama canal links
Options: Canada with Greenland,    North America with South America,    Siberia with Greenland,    None of the above

Ans:B,B


Potato is a modified form (outgrowth) of
Options: root,    stem,    fruit,    leaf

Ans:B,B


The theory of inheritance of acquired character was propounded by
Options: Charles Darwin,    Gregor Mendel,    J.B. Lamarck,    Weismann

Ans:C,C


When the Aryans advanced towards India reaching the Ganges and the Yamuna rivers? It was the time of rise of Ganges Civilization.
Options: 2200 BC,    1200 BC,    2000 BC,    1500 BC

Ans:D,D


Which of the following is a warm current?
Options: Benguela current,    Labrador current,    Kurosiwo current,    South Pacific current

Ans:C,C


Who composed the famous song 'Sare Jahan SeAchha'?
Options: Jaidev,    Mohammad Iqbal,    Bankim Chandra Chattopadhyay,    Rabindranath Tagore

Ans:B,B


What does CPU stand for?
Options: Cute People United,    Commonwealth Press Union,    Computer Parts of USA,    Central Processing Unit

Ans:D,D


What 'game' was first produced by the Southern Novelty Company in Baltimore, Maryland in 1892?
Options: Frisbee,    Monopoly,    Ouija board,    Ping Pong

Ans:C,C

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