Everyday Science Mcqs for Fpsc and other Tests
71. Which of the above sets of colour combinations has been added for TV colour vision?
Red, green and
72. When a train passes a railroad station quickly, a small boy who is perched on the edge of the platform is probably going to.
Fall towards the train
73. Why is water a highly efficient coolant for a car engine?
Water has very high specific heat capacity
74. Why is scorching with steam worse than scalding with boiling water?
Steam contains more energy than boiling water
75. Iron pipes are frequently covered in a layer of zinc to prevent corrosion. What is this method known as?
Galvanization
76. What causes the firm rubber comb used to brush dry hair to make a cracking sound?
Small Electric sparks
77. By what method do detergents dissolved in water aid in washing clothes?
Reducing the surface tension of water
78. What is involved in blotting paper’s ink absorption?
Capillary action phenomenon
79. What is responsible for the waterproof characteristics of the materials used to make raincoats and tents?
Surface tension
80. What has a satellite orbiting the earth at a constant speed?
Uniform acceleration
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