UKSSSC Forest SI Exam Paper 19 July 2021 (1st Shift) Official Answer Key

61. When was Disaster management act passed in parliament?
(A) 2005
(B) 2007
(C) 2008
(D) 2006

62. What is the ability of a human eye lens to adjust to its focal length known as?
(A) Specification
(B) Refractive index
(C) Accommodation
(D) Magnification

63. The most electronegative element in the periodic table is _______.
(A) helium
(B) fluorine
(C) oxygen
(D) chlorine

64. How many oxygen atom /atoms are present in a carbon dioxide molecule?
(A) 2
(B) 1
(C) 3
(D) 4

65. Which of the following diseases infects the alveoli (air-filled sacs) of the lungs?
(A) Pneumonia
(B) Amoebiasis
(C) Chikungunya
(D) Malaria

66. Which of the following is a photochemical smog?
(A) Carbon dioxide
(B) Tetraethyl lead (TEL)
(C) Methane
(D) Ozone

67. Whose principle states that the loss of weight of a body submerged (partially or fully) in a fluid is equal to the weight of the fluid displaced?
(A) Aristotle principle
(B) Archimedes Principle
(C) Galileo’s law
(D) Pascal’s law

68. Who among the following experimentally demonstrated the existence of electromagnetic waves in 1885?
(A) James Maxwell
(B) Heinrich R Hertz
(C) Arnold Sommerfeld
(D) Henry Stapp

69. Which gas is produced as a result of incomplete combustion of Carbon?
(A) Carbon dioxide
(B) CFCs
(C) Methane
(D) Carbon Monoxide

70. Which of the following can be corrected by liming?
(A) Soil Salinity
(B) Soil acidity
(C) Soil dryness
(D) Soil Alkalinity

71. Why was the Haryana Kisan Welfare Club formed?
(A) To spread information about integrated organic farming
(B) To spread information about radioactive waves
(C) To spread information about Drip Irrigation
(D) To spread information about Greenhouses gases

72. When was the project Elephant launched?
(A) 2002
(B) 1994
(C) 1986
(D) 1992

73. In which of the following, the roots are involved in nitrogen fixation?
(A) Pinus
(B) Cycas
(C) Cedrus
(D) Lycopodium

74. Which of the following is not an example of pseudo solid?
(A) Plastic
(B) Sodium Chloride
(C) Quartz Glass
(D) Rubber

75. Which conservation method serve as the living laboratories?
(A) Zoological parks
(B) National parks
(C) Biosphere reserves
(D) Wildlife sanctuary

76. If the work done by a force depends on the factors like velocity of the object or the particular path taken by the object, then such a force is called _______.
(A) Unbalanced force
(B) Non-conservative force
(C) Balanced force
(D) Conservative forces

77. What caused the “Terror of Bengal”?
(A) Carbon Deposition
(B) Fertilizers Deposition
(C) Chemical Deposition
(D) Water hyacinth plant

78. Which of the following is e-waste?
(A) Damaged monitor
(B) Dry leaves
(C) Rotten fruits
(D) Surgical waste

79. Which hormone is mainly involved in milk ejection?
(A) Vasopressin
(B) Thyroxine
(C) Melatonin
(D) Oxytocin

80. What is the direction of the Centrifugal force acting on the body moving along a circular path?
(A) Opposite to the direction of the body
(B) Away from the center
(C) Same as the direction of the body
(D) Towards the center