UKSSSC Forest SI Exam Paper 17 July 2021 (2nd Shift) Official Answer Key

61. How many sodium ions get transported outside for every two Potassium getting into the cell?
(A) Four
(B) Five
(C) Three
(D) Two

62. Who among the following received the Nobel Prize for Physics for the discovery of the principles of holography in 1971?
(A) Tom Banks
(B) Dennis Gabor
(C) Moses HW Chan
(D) Paul Dirac

63. Which of the following can be decomposed?
(A) Iron
(B) Leaves
(C) Steel
(D) Plastic waste

64. The unsaturated hydrocarbons which contain one or more triple bonds are called ________.
(A) Alkanes
(B) Alkynes
(C) Alkenes
(D) Alkanos

65. Which of the following parts of brain controls body temperature, urge for eating and drink?
(A) Thalamus
(B) Hypothalamus
(C) Hippocampus
(D) Subthalamus

66. The layer of rock through which water percolates down is known as ______.
(A) Uvala
(B) Stalactite
(C) Stalagmite
(D) Aquifer

67. The conductance of an intrinsic semiconductor ______.
(A) independent of temperature
(B) cannot be predicted
(C) decrease with temperature
(D) increases with temperature

68. Which of the following rock types would most likely be the best oil reservoir?
(A) Sandstone
(B) Shale
(C) Lava
(D) Granite

69. What is the position at which the forces cancel out called?
(A) Center point
(B) Extreme point
(C) Mean point
(D) Equilibirum point

70. Bad ozone which is harmful to living beings found in _______.
(A) Troposphere
(B) Ionosphere
(C) Stratosphere
(D) Exosphere

71. Which of the following types of bonding is present in iron?
(A) Metallic Bonding
(B) Hydrogen Bonding
(C) Ionic Bonding
(D) Electrovalent Bonding

72. What is the S.I unit of length?
(A) Metre
(B) Kilometre
(C) Decimetre
(D) Centimetre

73. Who among the following has first recognised that all bodies, irrespective of their masses, are accelerated towards the earth with a constant acceleration?
(A) Faraday
(B) Galileo
(C) Einstein
(D) Marie Curie

74. What is the condition for which the average speed of an object is equal to the magnitude of the average velocity over a given interval of time?
(A) Path length * Magnitude of displacement = 1
(B) Path length = 2 * Magnitude of displacement
(C) Path length = 3 * Magnitude of displacement
(D) Path length = Magnitude of displacement

75. The general formula for Alkenes can be written as _______.
(A) C_2nH_n
(B) C_nH_2n
(C) C_2nH_2n
(D) C_nH_n

76. Plants’ growth is largely restricted to specialized regions of active cell division called _________.
(A) Meristematic tissues
(B) Old dead tissues
(C) Permanent tissues
(D) Intermediate tissues

77. Which of the following is given by Recrystallization of sodium carbonate?
(A) Washing Soda
(B) Bleaching Powder
(C) Baking soda
(D) Milk of Magnesia

78. What is the name of the socket that holds the human eye?
(A) Cortex
(B) Orbits
(C) Medulla
(D) Glomeruli

79. Which of the following is an isotope of hydrogen?
(A) Strontium
(B) Selenium
(C) Thallium
(D) Deuterium

80. _________ is the bird sanctuary located in Bihar.
(A) Mayani Bird Sanctuary
(B) Karnala Bird Sanctuary
(C) Great Indian Bustard Sanctuary
(D) Kanwar Lake Bird Sanctuary