Everyday Science Oneliner MCQS 11

  • Charcoal is made by heating wood.
  • In blood, the percentage of water is 90%.
  • As the temperature of ice rises, the ice melts and its density increases.
  • Water is a universal solvent for Biochemical Reactions.
  • The temperature of the water below the solid ice layer is 4 degree centigrade.
  • The volume percentage of nitrogen in air is 78%.
  • The composition of oxygen in air is kept constant by the process of Photosynthesis.
  • Nitrogen occurs in plants and animals in the form of Protein.
  • Air contains volume of carbon dioxide approximately 0.03%.
  • The gases which are used by divers as an artificial atmosphere are helium and oxygen.
  • Noble gases are extremely unreactive.
  • The second most abundant metal found in the earth’s crust is Iron.
  • The iron content in plant tissue is normally between 50-250ppm.
  • Chernobyl nuclear reactor lies in Russia.
  • Chernobyl nuclear plant was destroyed in 1986 due to Failure of cooling system.
  • Radioactive source must be kept in Lead Container.
  • In Brazil alcohol is used as fuel for vehicles.
  • Voltmeter can be made by modification in Galvanometer.
  • The device used for the measurement of current, voltage and resistance is AVO meter.
  • In the name of multimeter “AVO”, V stands for Voltage.
  • Silicon is a Semiconductor.
  • Paper is an insulator.
  • For sending sound waves at large distance, Radio Waves are used.
  • The carrier waves used for the radio transmission have the frequency up to 30 KHz.
  • Video camera is used to convert Picture into electrical signals.
  • In a colour television, the colours are green, red and blue.
  • The waves used for sending signals to the satellite from ground station are Micro Waves.
  • First telegraph signal was transmitted in 1901.
  • In a telephone receiver, Magnet is placed under the diaphragm.
  • Nowadays, the international communication and transmission is being done through the waves known as Microwaves.
  • Modern Bicycle was invented by Staley.
  • Coulomb is the unit of Electric Charge.
  • For certain reasons, some people develop cloudy areas in one or both lenses. This defect is called Cataract. 
  • In order to prevent the corrosion of iron pipes they are often coated with a layer of zinc. This process is termed asGalvanization.
  • In a reactor, cadmium rods re used for Absorbing Neutrons.
  • Detergents dissolved in water help in cleaning clothes by reducing the surface tension of water.
  • The swing of a spinning cricket ball in the air can be explained on the basis of Bemoulli’s Theorem.
  • The absorption of ink by blotting paper involves Capillary Action phenomenon.
  • Materials for rain proof coats and tents owe their water proof properties to Surface Tension.
  • For being able to see three-dimensional pictures we have to use An Epidiascope.
  • Water has maximum density at 4 degree centigrade.
  • The highest recorded air temperature in the world in degree Celsius is 57.
  • The instrument that measures wind speed is the anemometer.
  • The theory of expanding Universe was first propounded by Hubble.
  • Used tea leaves contain Quinine.
  • Bat has the highest upper limit of audible range.
  • “Hotline” is A telecommunication link between the rulers of countries.
  • Most of the ozone is concentrated in the Stratosphere.
  • The cow’s milk contains 80% of water in terms of percentage.
  • Numismatics is the study of Coins.


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