General Science

General Science 
Most Repeated questions in the past papers

▪ The most splendid and the most magnificient constellation on the sky is Orion
▪ Diamond is a very expensive ornament. It is composed of a single element Carbon
▪ Television signals are converted into light signals by Photo diode
▪ Where do most of Asteroids lie?In asteroid belt between the orbits of Mars and Jupiter.
▪ The number of spark plugs needed in a diesel engine is 0
▪ The half life of a radioactive element is 8-days. How long it take to reduce it from 10 mg to 5 mg? 8 days
▪ The term ‗Blue Shift‘ is used to indicate Doppler Effect in which an object appears bluer when it is moving towards the observer or observer is moving towards the object.
▪ Kilowatt-hour is a unit of Electric Current
▪ Fuel used in a Fast Breeder Reactor is Uranium Plutonium Oxide
▪ Monsoon is caused by Seasonal reversal of winds
▪ Which of the following atmospheric layers help in radio communication? Ionosphere
▪ A moderator is used in nuclear reactor in order to Slow down the speed of the neutrons
▪ Sedimentary rocks are Porous
▪ Quartz crystal in quartz watches work on the principle called Piezo-electric effect
▪ The fruits without seed, like banana, are called parthenocarpic fruits
▪ In winter an. iron pipe feel colder than a wooden window . This is because wood is non-Conductor.
▪ The echo (reflected sound) will be distinctly heard only at ordinary temperatures if the
distance of the reflecting surfaces from the source of sound is at least 56fft
▪ It is possible to recognize a person in the dark by simply hearing his unique voice . It is
because of the pitch
▪ When a ray of sunlight enters a dark room , its straight path become visible because of
dust particles hanging in the air. It is because light is Visible
▪ A six feet tall lady wants to see her full image in a plane mirror . The minimum length of
the mirror will be 3 feet
▪ In a DNA molecules, the rulefor base pairing is Adenine always bound with thymine and
cytosine with guanine
▪ As per eating habit, squirrels are Frugivorous
▪ Water loss from leaves through stomata is called as Transpiration
▪ Nervous system in human consists of:
Brain, spinal cord and nerves. (central and peripheral)
▪ In human eye, the light sensitive layer made of specializes nerve cells, rods and cones is
called as The retina.
▪ Copper can be converted into gold by Artificial Radioactivity
▪ In born behaviour that involve only one part of the body are called REFLEX ACTION
▪ Animals which obtain their food from dead organisms are called Scavengers
▪ Riboflavin is not affected by cooking.
▪ The number of chromosomes in the spermatozoa is twenty-three
▪ The energy possessed by a water fall is kinetic energy.
▪ Rainbows are produced by the reflection of light through raindrops.
▪ Light switches in our homes are connected in parallel series.
▪ Oil bulbs cleaner and is less damaging to the environment than coal as a fuel.
▪ Enzymes are biological catalysts which have multiple function in the body.
▪ The difference between electrical charges at the two ends of a conductor is called Potential
difference.