Everyday Science Oneliner MCQS 10

• The German or nickel silver is composed of approximately 60% copper, 20% nickel and 20% zinc.
• The temperature of the dead body is the temperature of the place where it is kept.
• Cusec is the unit for measuring the flow of liquids/flow rate, equal to one cubic foot per second.
• The deepest place on earth is Mariana trench.
• Twinkling of stars is caused by Refraction of light.
• Magnifying power of a simple microscope can be increased by decreasing focal length of the lens.
• A very important practical application of properties of matter is hoeing or “godi” practiced by the farmers. This property of matter is called Capillarity.
• It is observed that the total pressure exerted by air on the man of average size is around 14.7 lb. wt. per square inch. But the man feels quite comfortable. It is because of an equal and opposite pressure acts from inside.
• A nuclear reactor is a device used to carry out controlled nuclear reaction whereas GM counter is a device used to detect nuclear radiation.
• A body can escape the gravitational pull of the earth if it is thrown up with a velocity of 7 miles per sec.
• Night vision is possible with the help of Infrared Rays.
• Myopia is a defect of human eye. It can be corrected by using a lens called concave lens.
• Walnuts can be broken in the hand by squeezing two together but not one. It is because of work done.
• The instrument which is specially designed for recording earth quake wave is called seismograph which measure earth quake waves on a Richter scale.
• Fossils found in the lowest geological strata are generally most primitive.
• Evolution can be described as a continuing process.
• Mutation is the only source new alleles.
• Polygenic characteristic are controlled by Multiple Genes.
• Digestion involves ingestion, digestion, absorption and elimination.
• In humans, most nutrient molecules are absorbed by the small intestine.
• The energy needed to fuel essential body processes is called Basal metabolism.
• Inhaled air passes through Bronchiole in the last.
• Hermaphroditism is a form of sexual reproduction.
• Cobalt is a metal which is strongly attracted by a magnet.
• Hepatitis A is transmitted to different individuals by Faeces.
• The unit that coordinates different devices of the computer system is Control unit.
• The approximate intensity level of the sound which can cause damage is 100 decibel (dB).
• Fuse wire is made of 63% tin and 37% lead.
• The unit of photosynthesis in green plants is called Quantosome.
• The property by virtue of which metals can be beaten into thin sheets is known as Malleability.
• The sky appears blue because the earth’s atmosphere Reflects blue light.
• Gamma rays are Higher energy rays emitted by radioactive elements.
• The radiation that is used in magnetic resonance imaging (MRI) is in the infra-red range.
• Lead is used in storage batteries.
• The gas produced during the fermentation of Biomass is Methane.
• Biogas is the common name of Natural Gas.
• Bacteria help in the process of fermentation of biomass.
• One thousand watt power is called as 1 kilowatt.
• The meter installed in our homes measure electricity in KWh.
• Unis of electricity consumed by 2500 watt air-conditioner in one hour are 2.5 units.
• Gas bills are charged in CGS and BTU.
• In BTU system, one BTU is equal to 1055 joule.
• Air is present in the atmosphere of earth up to the height of 200 kilometres.
• All forms of energy that we use are ultimately transformed into Heat energy.
• The gas which acts as a glass of greenhouse is Carbon dioxide.
• Google is the largest search engine of internet.
• Carbon dioxide is used in the preparation of soft drinks.
• World’s largest flower auction is held in Aalsmeer.
• All the plant life is based upon the compounds, which are made up of Oxygen, Carbon and Nitrogen.
• Huge white ball in the sun almost consists of Hydrogen.