Everyday Science Quiz Test 6 March 8, 2020 3 Share Facebook Pinterest WhatsApp Linkedin Email Start your test Q1. The most important stimulant in tea leaves Brucine Caffeine Phenylalanine Theine Q2. Dolly is the name of the First cloned sheep First cloned monkey First test-tube baby First human fossil Q3. Which part of the camera is analogue to the retina in the human eye? Lens Film Apperture Shutter Q4. When a person enters a dark room from bright light he is not able to see clearly for little while because the Eye is unable to adjust itself immediately Retina becomes insensitive momentarily Iris is unable to dilate the pupil immediately Distance between the lens and retina take time to adjust Q5. What is the average adult pulse rate? 140-150 115-125 72-80 60 Q6. The beautiful colour pattern exhibited by a peacock in its tail feathers are due to Selective absorption of light Selective reflection of light Sintederence of light Natural colour pattern of feathers Q7. A lake starts freezing because of the cold atmosphere. It will first freeze At the bottom In the middle part At the top surface Uniformly throughout the water body Q8. The sun appears red at sunrise and sunset while it appears white at noon, because Of refraction It is cooler at sunrise and at sunset Of diffraction leading to red end of the spectrum reaching the earth Of scattering of light due to dust particles and air molecules Q9. An astronaut inside a spacecraft is in a state of weightlessness. This implies that The mass of the astronaut is reduced to zero Gravity inside the spacecraft ceases to act The astronaut is outside the influence of the earth's gravitational force The astronaut and the spacecraft are both in a free-falling state Q10. An iceberg is floating in sea. How much of its mass will remain above the surface of water? One tenth One fifth One third One fourth Q11. Most of the ozone in the atmosphere is concentrated in the Mesosphere Troposphere Stratosphere Ionosphere Q12. The cow's milk contains how much amount of water in terms of percentage? 65% 70% 75% 80% Q13. T.V. transmission cannot cover a very large area because the strength of T.V. waves is very limited picture cannot be transmitted clearly after a specific distance the shape of the earth is spherical the air is not a good conductor of light and sound/waves Q14. The Green House Effect is caused by an excess of Carbon dioxide Carbon monoxide Carbon tetrachloride None of the above Q15. Bats can also fly in dark because they are capable of taking the help of Ultraviolet Waves Ultrasonic Waves Electromagnetic Waves Special Retina Q16. What is 'Stealth Technology'? A device which when attached to an aircraft makes it invisible on the radar A coating which reduces the visibility of an aircraft on a radar A technology by which it is possible for the aircrafts to spy in the enemy air-space A technology by using which paratroopers can be dropped stealthily behind the enemy columns Q17. The primary function of the feathers in birds is to Provide insulation for preserving body heat Provide striking surface to the wings for flying Make the body surface waterproof Impart colouration for species as well as sex recognition Q18. The rear view mirror of a motor vehicle is Concave Convex Plane Biconcave Q19. Lead ball falls through water more slowly than through air because The value of 'g' is less in water Density of air is less than that of water Of the viscous force in water Of the surface tension of water Q20. A Fahrenheit thermometer indicates a temperature of 140F. corresponding reading on the Celsius scale will be -200C -100C + 100C +200C Time is Up! Time's up
