Everyday Science Oneliner MCQS 15

  • When a bullet is fired upwards vertically, it gains in Potential energy.
  • The mixture of Acetylene and oxygen gases is required in gas welding.
  • Isobars are the lines connecting the places having same Atmospheric pressure.
  • The velocity of wind is related to Pressure gradient.
  • The acid present in the sour milk is Formic acid.
  • The most important stimulant in tea leaves is Caffeine.
  • Dolly was the name of first cloned sheep.
  • The smallest living cell is that of a Mycoplasma (bacterium)
  • We lose consciousness if blood flow to the brain is cut off more than 5 sec.
  • Menopause usually occurs between 40 to 45 years.
  • Platypus and Echidnas are the only monotremes, or mammals that lay eggs.
  • Film is that part of camera which is analogue to the retina in the human eye.
  • 72-80 is the average adult pulse rate.
  • Magnetic resonance is the modern tool for imaging brain tumours.
  • The acid used in a car battery is sulphuric acid. 
  • After drinking contaminated water, you would be most apt to develop symptoms of Typhoid fever.
  • In eye donation, Cornea of donor’s eye is utilized.
  • Alzheimer is a disease of Brain.
  • Cell was discovered by Robert Hooke.
  • A body is taken from Earth to Moon. Its weight will Decreases.
  • Brass is an alloy of Copper and Zinc.
  • Mineral essential for the coagulation of blood is Magnesium.
  • Milk is an example of Emulsion.
  • Iron is the most abundant transition metal.
  • Hydrometer is used to determine specific gravity of liquids.
  • Convex lenses are used for the correction of Long-sightedness (Hyperopia)
  • A transformer is used to Increase or decrease AC voltage.
  • The stones formed in human kidney consist mostly of Calcium oxalate.
  • Most of the explosions in mines occur due to the mixing of Methane with air.
  • A mobile phone sends and receives messages through Radio waves.
  • Fax machine receives the signal and give its output through the Printer.
  • The procedure of crushing the gallstone and kidney stone by laser is called Lithotripsy.
  • Laser is used to produce an image of One dimension.
  • Three dimensional image formed by laser is called Photograph.
  • The first laser ever used is Semiconductor laser.
  • Ordinary light spreads in all directions.
  • Optical fibres are the fine strands of Glass.
  • The satellites which revolve in such an orbit, so that they move with earth rotation are called Geo-stationary satellites.
  • The elements which emit radiations have atomic number greater than 82.
  • In a normal healthy body, the number of red cells or erythrocytes in each cubic millimetre of blood is 5.0 m.
  • The average life of a red blood cell in the body is about 120 days.
  • DNA is a class of nucleic acids.
  • Cellulose is a Carbohydrate.
  • After long periods of use, a gray spot develops on the inside of a bulb. This is because the tungsten filament evaporates and collects there.
  • Ice cubes are added to a glass of pure water and a glass of a pure alcohol. The ice would be Floating in alcohol and sinking in water.
  • Protein which renders a cell less susceptible to attack by viruses is called Chloromycetin.
  • The pigment involved in photosynthesis activity is called Chlorophyll.
  • The chemical part of the dye that absorbs light and produces colour is called photo chrome.
  • A nuclear reactor harnesses nuclear energy by Controlled chain reaction.
  • Eyes are tested by dilating the pupils with a very dilute solution of Atropine.


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