12/03/2024
1. The unit of energy produced by food in the human body is called
(a) Watt
(b) DNA
*(c) Calorie (Correct)*
(d) Ampere
2. Proteins are made of
(a) Sugar
(b) Fatty acid
(c) Nucleic acid
*(d) Amino acid (Correct)*
3. Amount of water in mammalian blood is
(a) 99%
(b) 98%
*(c) 90% (Correct)*
(d) 92%
4. Which of the following Vitamin helps in clotting of blood?
(a) Vitamin B
(b) Vitamin A
(c) Vitamin D
*(d) Vitamin K (Correct)*
5. Which of the following vitamins are fat soluble?
(a) Vitamins A,B, C, D
*(b) Vitamins A, D, E, K (Correct)*
(c) Vitamins A, B, C, D
(d) None of these
6. Which of the following is not a source of Vitamin C?
(a) Potato
(b) Tomato
(c) Guava
*(d) Milk (Correct)*
7. Ozone is present in which of the following layers of atmosphere
(a) Troposphere and Thermosphere
*(b) Troposphere and Stratosphere (Correct)*
(c) Mesosphere
(d) Thermosphere
8. The study of relationship between organism and their environment is called
*(a) Ecology (Correct)*
(b) Oncology
(c) Lithology
(d) None of these
9. Most of the ozone in the atmosphere is concentrated in the
(a) Mesosphere
(b) Troposphere
*(c) Stratosphere (Correct)*
(d) Ionosphere
10. The most abundant element in Earth’s crust is
(a) Silicon
*(b) Oxygen (Correct)*
(c) Aluminum
(d) None of these
11. Which of the following vitamins is Water soluble?
(a) Vitamins B, E
(b) Vitamins A, B
(c) Vitamins C, D
*(d) Vitamins B, C (Correct)*
12. In railway tracks, a small gap is left between the rails
*(a) To allow for the expansion during heat (Correct)*
(b) To save the cost of metal
(c) To permit the shrinkage of metal
13. Friction can be reduced by changing over from
*(a) Sliding to rolling (Correct)*
(b) Rolling to sliding
(c) Potential energy to kinetic energy
14. A solid ball of metal has a spherical cavity inside it. If the ball is heated, the volume of the cavity will
(a) Increase
*(b) Decrease (Correct)*
(c) Remain unaffected
15. As we climb up the mountain, the atmospheric pressure will
*(a) Decrease (Correct)*
(b) Increase
(c) Remain the same
(d) None of these
16. Which of the following vitamin is produced in the body with the help of sunlight?
*(a) Vitamin D (Correct)*
(b) Vitamin E
(c) Vitamin K
(d) None of these
17. Vitamin ‘D’ prevents
(a) Tooth diseases
*(b) Bone diseases (Correct)*
(c) Eye diseases
(d) Skin diseases
18. Heart attack is caused due to
(a) Blood sugar
*(b) Cholesterol (Correct)*
(c) Blood protein
(d) Blood urea
19. Which of the following diseases has posed a serious threat the world over?
(a) Tumour
(b) Paralytic stroke
*(c) AIDS (Correct)*
(d) Tuberculosis
20. Which of the following disease is not water-borne?
(a) Cholera
*(b) Influenza (Correct)*
(c) Amoebiasis
(d) Typhoid
21. Typhoid and cholera are typical examples of
(a) Infection diseases
(b) Air-borne diseases
*(c) Water-borne diseases (Correct)*
(d) None of these
22. Who invented the hydrogen bomb?
(a) J. Robert Oppenheimer
(b) Albert Einstein
*(c) Samuel Cohen (Correct)*
(d) Edward Teller
23. Logarithm tables were invented by
*(a) John Napier (Correct)*
(b) John Doe
(c) John Harrison
(d) John Douglas
24. Who invented optical fibre?
(a) Samuel Cohen
*(b) Narinder Kapany (Correct)*
(c) Percy L. Spencer
(d) T. H. Maimah
25. Brass is an alloy of
(a) Copper and Tin
*(b) Copper and Zinc (Correct)*
(c) Copper and Nickel
(d) None of these
26. A transformer is used to
(a) Increase DC voltage
*(b) Increase or decrease AC voltage (Correct)*
(c) Decrease DC voltage
(d) None of these
27. Which of the following gases is used for purification of water?
(a) Oxygen
(b) Ammonia
*(c) Chlorine (Correct)*
(d) Neon
28. Pure gold is
(a) 17 carats
(b) 20 carats
*(c) 24 carats (Correct)*
(d) 36 carats
29. Which of the following is a gas?
(a) Thorium
(b) Plutonium
(c) Mercury
*(d) Chlorine (Correct)*
30. Which one of the following mixture of gases is required in gas welding?
(a) Oxygen and ethylene
(b) Oxygen and hydrogen
*(c) Acetylene and oxygen (Correct)*
(d) All of above
31. One horse power is equal to
(a) 736 watts
*(b) 746 watts (Correct)*
(c) 748 watts
(d) 796 watts
32. Heat from the sun is received by the earth through
(a) Conduction
(b) Convection
*(c) Radiation (Correct)*
(d) Condensation
33. As the temperature of ice rises, the ice melts and its density
(a) Decreases
(b) Constant
*(c) Increases (Correct)*
(d) All of above
34. A branch of science dealing with the study of fossils is called
(a) Parasitology
*(b) Palaeontology (Correct)*
(c) Theology
(d) Radiology
35. The theory of inheritance of acquired characters was propounded by
(a) Charles Darwin
*(b) Gregor Mendal (Correct)*
(c) J.B. Lamarck
(d) Weismann
36. Which of the following was discovered by Ronald Ross?
(a) Cholera germs
*(b) Malaria parasite (Correct)*
(c) Jaundice germs
(d) None of these
37. Radioactivity was discovered by
*(a) Henry Bequerel (Correct)*
(b) Marie Curie
(c) Newton
(d) Einstein
38. The science of heavenly bodies is called
(a) Astrophysics
*(b) Astronomy (Correct)*
(c) Astroneuties
(d) Cosmology
39. Which of the following has no blood, but respires?
(a) Cockroach
(b) Earthworm
(c) Fish
*(d) Hydra (Correct)*
40. Which of the following is the basic characteristic of a living organism?
(a) Ability to move
*(b) Ability to reproduce (Correct)*
(c) Ability to eat
(d) Ability to breath
41. In which organ of the human body are the lymphocyte cells formed?
(a) Liver
(b) Long bone
(c) Pancreas
*(d) Spleen (Correct)*
42. What is stored in the gall bladder?
(a) Enzymes
*(b) Bile (Correct)*
(c) Urea
(d) Insulin
43. The study of structures and formation of rocks and minerals on other plants is called
(a) Cosmology
(b) Virology
*(c) Astrogeology (Correct)*
(d) Histology
44. Which vitamin canot store in human body?
(a) Vitamin A
*(b) Vitamin C (Correct)*
(c) Vitamin D
(d) Vitamin E
45. Deficiency of vitamin C causes
(a) Night-blindness
(b) Beri-Beri
*(c) Scurvy (Correct)*
(d) None of these
46. Which Vitamin is known as Ascorbic Acid?
(a) Vitamin A
(b) Vitamin B
(c) Vitamin K
*(d) Vitamin C (Correct)*
47. Deficiency of Vitamin C causes
*(a) Tooth diseases (Correct)*
(b) Bone diseases
(c) Eye diseases
(d) Skin diseases
48. All forms of energy that we use are ultimately transformed into
(a) Electrical energy
*(b) Heat energy (Correct)*
(c) Light energy
(d) Chemical energy
49. Water helps in the metabolism process in the presence of
(a) Amino acids
(b) Ribonucleic Acid
(c) Proteins
*(d) Enzymes (Correct)*
50. The proteins are made in the cells under the instructions of
*(a) Genes (Correct)*
(b) DNA
(c) RNA
(d) Ribosome
