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Important Science Questions For NDA And CDS Exam

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Attempt the online quiz which consist of important science questions for NDA and CDS exam. The passing percentage is 70%. This quiz would be helpful for upcoming NDA and CDS exam.

#1. Cutting and peeling of onion bring tears to the eyes because of the presence of

#2. Which of the following is not an enzyme?

#3. During the process of respiration in human beings, the exchange of gases takes place in

#4. Which among the following is both an endocrine and exocrine gland of human body?

#5. Sweating during exercise indicates operation of which one of the following processes in the human body?

#6. Which of the following joints can move in only direction?

#7. Which plant is commonly known as touch-me-not plant?

#8. Cannabis plant is the source of

#9. Which of the following works with calcium to build strong bones

#10. Which one among the following minerals is essential for the transmission of nerve impulses in the nerve fibres of human body?

#11. Which of the following is a water-soluble vitamin and hence is required to be taken everyday?

#12. Which of the following is a rich source of Omega-3 oils?

#13. Which of the following metals is a constituent of Vitamin B12?

#14. Which of the following does not have the capacity to reproduce outside the host cell?

#15. Mycology is the study of

#16. Which type of teeth are used to grind food?

#17. Function of which of the following is to kill germs and help to prevent throat and lung infections?

#18. The number of incisors in a human being is

#19. Which of the following gases is responsible for discolouration of brass in air?

#20. Metals are good conductors of electricity because

#21. Nichrome is used as heating element because of its

#22. When a ray of light is going from one medium to another, its

#23. Bats can ascertain distances, directions, nature and size of the obstacles at night. This is possible by reflection of the emitted

#24. Why do some automobiles have additional yellow headlights?

#25. What type of mirror is used in a view finding mirror of a vehicle?

#26. An optician prescribes a power = - 0.5 dioptre. The corresponding lens must be a

#27. In a pressure cooker cooking is faster because the increase in vapour pressure

#28. If a heater coil is cut into two equal parts and only one part is used in the heater, the heat generated will be:

#29. In India, distribution of electricity for domestic purpose is done in the form of

#30. Three resistance coils of 1 Ω, 2 Ω and 3 Ω are connected in series. If the combination is connected to a battery of 9 V, what is the potential drop across the resistance coil of 3 Ω ?

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