General Knowledge Quiz Test 9 Start your test Q1. Washing Soda in water behaves like _____. Alkaline Neutral Acid None of these None Q2. Silica is used in _____. Plastic Making Glass Making Iron Making Wood Making None Q3. Detergents dissolved in water help in cleaning clothes by Increasing the temperature of water Reacting chemically with dirt Reducing the surface tension of water Dissolving dirt None Q4. What is used in making of alloys? Lime-stone Chromium Granite Gypsum None Q5. Radar transmits short pulses of high frequency called Infrared waves Radio waves Ultraviolet waves Sound waves None Q6. Yeast used in making of bread is a: Fungus Plant Bacteria Seed None Q7. Which one of the following can be used to focus sunlight? Plane mirror Concave lens Concave mirror Convex mirror None Q8. Which one of the following colours has the longest wavelength? Yellow Blue Red Green None Q9. The ray with high penetrating power is _____. α-rays β-rays γ-rays z-rays None Q10. The heart of a normal adult human being weighs about _____. 200 grams 300 grams 400 grams 500 grams None Q11. What is the chemical name of bleaching powder? Calcium Hypochlorite Calcium Chlorate Calcium Chloride Chlorine None Q12. A satellite moving round the earth with a uniform speed has _____? An accelerated motion No acceleration at all Uniform acceleration Uneven acceleration None Q13. Friction can be reduced by changing over from _____. Sliding to rolling Dynamic to static Potential energy to kinetic energy Rolling to sliding None Q14. A light year is the unit of _____. Light Distance Speed Space None Q15. A mobile phone sends and receives messages through _____. Radio waves Ultraviolet waves Micro waves Sound waves None Q16. The acid used in a car battery is _______. Hydrochloric acid Nitric acid Sulphuric acid Carbonic acid None Q17. An instrument to detect the purity of milk is _______? Lactometer Manometer Sonometer Hygrometer None Q18. In order to prevent the corrosion of iron pipes they are often coated with a layer of zinc. This process is termed as: Electroplating Annealing Galvanization Vulcanization None Q19. The range of a 100 meter high T.V. transmitter antenna is about: 10 KM 20 KM 30 KM 40 KM None Q20. Ice blocks are covered with sawdust To prevent the dust from collecting on the ice Because ice being cold cannot be lifted with bare hands To provide necessary insulation from heat None of the above None Q21. In railway tracks, a small gap is left between the rails _____. To permit the shrinkage of metal To save the cost of metal To allow for the expansion during heat None of the above None Q22. Bio gas is the common name of ______. Nitrogen Natural gas Carbon dioxide Oxygen None Q23. Amino acids are a product of the digestion of _________. Carbohydrates Fats Vitamins Proteins None Q24. The waves used for sending signals to the satellite from ground station are _______. Ultraviolet rays X-rays Sound waves Micro waves None Q25. Video camera is used to convert ________. Heat into x-rays Sound into electrical signals Picture into electrical signals Electrical signals into pictures None Time's upTime is Up!
