Sample NTSE Interview Questions (Part 8 of 9)

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• Carbon is a part of both natural polymers and synthetic polymers? Cellulose is also a polymer? What about wool and silk?
• What is the definition of acids? Give example of weak acid, and very weak acid
• What are the differences between Nylon, Rayon and Dacron?
• What are the harmful effects of DDT?
• The HCF of (n + 3) and (7n + 48) is k, where n is a natural number. How many values of k are possible
• How you can get the sum of 31 from five 3՚s? You have to use all 3՚s
• A car covers a certain distance taking 7 hours in forward journey. During the return journey, speed was increased by 12 kmph and it takes 5 hours. What is total distance covered?
• what would be the next number in the sequence 2.20,74, 110?
• what would be the next number in the sequence 8, 20,28, 44,
• Imagine that u r driving a car from mysore to bangalore at a speed of 75mph. Car no is KA-19 DB1955. Distance between Bangalore and Mysore is 250 Km________ Now tell me wat s the date of birth of the driver.
• Perimeter of front wheel = 30, back wheel = 20. If front wheel revolves 240 times. Howm many revolutions will the back wheel take?
• Find out the smallest four digit number which is divisible from 1 to 10?
• Define the various types of rainfall. If it rains in the Gangetic plains due to Himalayas it would be which type of rainfall?
• Why none of the types of rainfall gives sufficient rainfall to Rajasthan region?
• We spread dry clothes to make them dry. Why?
• How drying of clothes is related to the humiidity in the air?
• Why our wet hairs stick with each other?
• Why fish die (after some time and not instantly) when removed from the water?
• If a tiger is 1km away from you then approximately how much time he will take to eat you? The friction of the ground surface is zero.
• A polar bear has thick layer of fat so that it can withstand the low temperature. What are the disadvantage of having a thick fat layer (to the polar bear) ?
• Rotation of earth around the Sun is independent of the rotation of the Mars?
• Mercury is harmful still it is used in thermometers, CFL, to measure pressure etc. Why?
• Does there exist any frictional force on the moon?
• What are contact forces?
• Forces are “due to an interaction between two bodies” Explain