General Science
1. A piece of wire of resistance R is cut into 5 equal parts. These parts are then connected in parallel. If the equivalent resistance of the combination is R, then the ratio R/R is BPSC TRE 4 General Science practice set 1 2. An electric heater of resistance 8 ohm draws 15 A current from the mains. What is the rate at which heat is developed in the heater? BPSC TRE 4 General Science practice set 1 3. Which of the following lenses would you prefer to use while reading small letters found in a dictionary? BPSC TRE 4 General Science practice set 1 4. The human eye forms the image of an object at its ________ BPSC TRE 4 General Science practice set 1 5. Which of the following is not a part of the female reproductive system in human beings? BPSC TRE 4 General Science practice set 1 6. The anther contains _________ BPSC TRE 4 General Science practice set 1 7. Asexual reproduction takes place through budding in ______ BPSC TRE 4 General Science practice set 1 8. Which one of the following types of medicines is used for treating indigestion? BPSC TRE 4 General Science practice set 1 9. A wire of resistance 20 ohm is cut into 4 equal parts. The resistance of each part is BPSC TRE 4 General Science practice set 1 10. A current of 5 A flows through a resistor of resistance 4 ohm. The power dissipated in the resistor is BPSC TRE 4 General Science practice set 1 11. Which type of lens is commonly used as a magnifying glass? BPSC TRE 4 General Science practice set 1 12. Which part of the human eye controls the amount of light entering the eye? BPSC TRE 4 General Science practice set 1 13. Which organ produces ova in the female reproductive system? BPSC TRE 4 General Science practice set 1 14. Which of the following is the male reproductive part of a flower? BPSC TRE 4 General Science practice set 1 15. Which type of asexual reproduction occurs in Amoeba? BPSC TRE 4 General Science practice set 1 16. Which type of medicine is commonly used to treat bacterial infections? BPSC TRE 4 General Science practice set 1 17. Four identical resistors, each of resistance R, are connected in parallel. Their equivalent resistance is BPSC TRE 4 General Science practice set 1 18. A resistor of resistance 10 ohm is connected across a 20 V supply. The power consumed by the resistor is BPSC TRE 4 General Science practice set 1 19. A convex lens has a focal length of 20 cm. Its power is BPSC TRE 4 General Science practice set 1 20. Which part of the human eye acts as a screen on which the image is formed? BPSC TRE 4 General Science practice set 1 21. Which organ is the usual site of implantation of the embryo in human females? BPSC TRE 4 General Science practice set 1 22. Which of the following is the female reproductive part of a flower? BPSC TRE 4 General Science practice set 1 23. Which type of asexual reproduction occurs in Plasmodium? BPSC TRE 4 General Science practice set 1 24. Which type of medicine is used to relieve pain? BPSC TRE 4 General Science practice set 1 25. Three identical resistors, each of resistance 6 ohm, are connected in parallel. The equivalent resistance is BPSC TRE 4 General Science practice set 1 26. A current of 2 A flows through a 5 ohm resistor for 10 seconds. The heat produced is BPSC TRE 4 General Science practice set 1 27. A concave lens has a focal length of 50 cm. Its power is BPSC TRE 4 General Science practice set 1 28. Which part of the eye changes its curvature to help focus objects at different distances? BPSC TRE 4 General Science practice set 1 29. Which structure carries the ovum from the ovary toward the uterus? BPSC TRE 4 General Science practice set 1 30. The ovules in a flower are present inside the BPSC TRE 4 General Science practice set 1 31. In budding, a new organism develops as an outgrowth from the BPSC TRE 4 General Science practice set 1 32. Which substance is commonly used as an antacid? BPSC TRE 4 General Science practice set 1 33. Two resistors of 6 ohm and 3 ohm are connected in parallel. Their equivalent resistance is BPSC TRE 4 General Science practice set 1 34. An electric bulb is rated 100 W, 200 V. The current drawn by the bulb at its rated voltage is BPSC TRE 4 General Science practice set 1 35. When an object is placed between the optical centre and focus of a convex lens, the image formed is BPSC TRE 4 General Science practice set 1 36. The ability of the eye lens to change its focal length according to the distance of the object is called BPSC TRE 4 General Science practice set 1 37. In human beings, fertilization normally takes place in the BPSC TRE 4 General Science practice set 1 38. Which part of the flower receives pollen grains during pollination? BPSC TRE 4 General Science practice set 1 39. Which organism commonly reproduces by budding? BPSC TRE 4 General Science practice set 1 40. Which acid is mainly present in the gastric juice of the human stomach? BPSC TRE 4 General Science practice set 1 41. Two resistors of 4 ohm and 6 ohm are connected in series. Their equivalent resistance is BPSC TRE 4 General Science practice set 1 42. An electrical appliance operates at 220 V and draws a current of 5 A. Its power consumption is BPSC TRE 4 General Science practice set 1 43. Which type of image is always formed by a concave lens for a real object? BPSC TRE 4 General Science practice set 1 44. Which type of lens is used to correct myopia? BPSC TRE 4 General Science practice set 1 45. Which of the following is a male reproductive organ? BPSC TRE 4 General Science practice set 1 46. Which structure connects the stigma with the ovary in a flower? BPSC TRE 4 General Science practice set 1 47. Which of the following is an example of asexual reproduction by fragmentation? BPSC TRE 4 General Science practice set 1 48. Which organ produces hydrochloric acid as part of gastric juice? BPSC TRE 4 General Science practice set 1 49. A wire has resistance R. If its length is doubled while its cross-sectional area remains unchanged, its new resistance will be BPSC TRE 4 General Science practice set 1 50. A heater of resistance 10 ohm is connected to a 100 V supply. The current through the heater is BPSC TRE 4 General Science practice set 1 51. If the focal length of a convex lens is decreased, its power BPSC TRE 4 General Science practice set 1 52. Which type of lens is used to correct hypermetropia? BPSC TRE 4 General Science practice set 1 53. Which duct carries sperm from the epididymis toward the urethra in the male reproductive system? BPSC TRE 4 General Science practice set 1 54. The transfer of pollen grains from anther to stigma is called BPSC TRE 4 General Science practice set 1 55. Which organism reproduces asexually by spore formation? BPSC TRE 4 General Science practice set 1 56. Which type of medicine is used to reduce fever and relieve mild pain? BPSC TRE 4 General Science practice set 1 57. A wire has resistance R. If its cross-sectional area is doubled while its length remains unchanged, its new resistance will be BPSC TRE 4 General Science practice set 1 58. An electric heater consumes 2 kW of power for 3 hours. The electrical energy consumed is BPSC TRE 4 General Science practice set 1 59. The SI unit of power of a lens is BPSC TRE 4 General Science practice set 1 60. In a normal human eye, the image formed on the retina is BPSC TRE 4 General Science practice set 1 61. Which hormone is mainly produced by the ovaries and helps regulate the female reproductive cycle? BPSC TRE 4 General Science practice set 1 62. What is the usual result of fertilization in flowering plants? BPSC TRE 4 General Science practice set 1 63. Which of the following is NOT an example of asexual reproduction? BPSC TRE 4 General Science practice set 1 64. Which of the following is a common symptom of indigestion? BPSC TRE 4 General Science practice set 1 65. If a wire is stretched to twice its original length without changing its volume, its new resistance becomes BPSC TRE 4 General Science practice set 1 66. If the current through a resistor is doubled while its resistance remains constant, the heat produced per second becomes BPSC TRE 4 General Science practice set 1 67. A lens has a power of +4 D. Its focal length is BPSC TRE 4 General Science practice set 1 68. The least distance of distinct vision for a normal human eye is approximately BPSC TRE 4 General Science practice set 1 69. Which hormone is mainly associated with the development of male secondary sexual characteristics? BPSC TRE 4 General Science practice set 1 70. After fertilization in a flowering plant, the ovule generally develops into a BPSC TRE 4 General Science practice set 1 71. How many parent organisms are generally involved in asexual reproduction? BPSC TRE 4 General Science practice set 1 72. Antacids primarily work by BPSC TRE 4 General Science practice set 1 73. Five identical resistors, each of resistance 10 ohm, are connected in series. Their equivalent resistance is BPSC TRE 4 General Science practice set 1 74. Two resistors of 6 ohm and 3 ohm are connected in parallel across a 12 V battery. The total current drawn from the battery is BPSC TRE 4 General Science practice set 1 75. A lens has a power of -2 D. Which type of lens is it and what is its focal length? BPSC TRE 4 General Science practice set 1 76. The far point of a normal human eye is approximately BPSC TRE 4 General Science practice set 1 77. Which structure connects the uterus with the vagina? BPSC TRE 4 General Science practice set 1 78. After fertilization in a flowering plant, the ovary generally develops into a BPSC TRE 4 General Science practice set 1 79. Which method of asexual reproduction is commonly seen in Hydra? BPSC TRE 4 General Science practice set 1 80. Which type of medicine is commonly applied to the skin to prevent infection in minor cuts and wounds? BPSC TRE 4 General Science practice set 1 81. Five identical resistors, each of resistance 10 ohm, are connected in parallel. Their equivalent resistance is BPSC TRE 4 General Science practice set 1 82. A 1000 W electric heater is operated for 2 hours. The electrical energy consumed is BPSC TRE 4 General Science practice set 1 83. Which lens is used to correct myopia (short-sightedness)? BPSC TRE 4 General Science practice set 1 84. The blind spot in the human eye is the point where BPSC TRE 4 General Science practice set 1 85. Which of the following produces sperm in the human male reproductive system? BPSC TRE 4 General Science practice set 1 86. Which part of a flower mainly attracts pollinators such as insects because of its colour and appearance? BPSC TRE 4 General Science practice set 1 87. Which method of asexual reproduction occurs in Leishmania? BPSC TRE 4 General Science practice set 1 88. Which of the following is NOT a primary function of an antacid? BPSC TRE 4 General Science practice set 1