One Paper MCQs Solved Preparation Material All in One for PPSC FPSC NTS PTS OTS

• The system for writing by blind people was invented by Louis Braille
• The parachute was used for the first time by J.P.Blanchard
• The German physicit who first demonstrated the existence of Radio waves was Henrich Hertz
• Fountain pen was invented by L.E.Waterman
• The role of heredity was demonstrated by Mendel
• The instrument used to measure the concentration of salt water is the Salinometer
• Safety matches was invented by J.E.Lundstrom
• Dynamics is the study of Movements of bodies
• Statics is the study of Forces acting on bodies at rest
• Mechanics is the study of Forces acting on bodies
• The electro-cardiograph was invented by William Einthoven
• Chronometer was invented by John Harrison
• The study of antiquities is known as Archaeology
• The study of the duration of life is known as Chronobiology
Calcium oxide is commonly known as Quick lime
• A deviation of light passing from one medium to another is known as Refraction
• An apparatus for generation of atomic energy is called a Reactor

• Vitamin C is also called Ascorbic Acid it prevents scurvy
• Vitamin C is also necessary for utilization of iron
• The food which contains largest amount of Vitamin C is tomato
• Cod liver oil contains Vitamin D
• Collagen is the substance that gives elasticity to skin
• Vitamin E promotes oxygenation and acts as anti aging
• Carbon dioxide we release comes from food we eat
• Vitamin B2 has what other name Riboflavin
• Fats are made of carbon, hydrogen and oxygen