General KnowledgeScience GK 100+ MCQ & Answer Science General Knowledge | page-08 | General Knowledge MCQ And Answer February 4, 2025 DSN MARATHI 71. A person who is pulling a bucket filled with water falls behind with the sudden break of the rope. Which of the following laws of Newton comes into action? A. First Law B. Second law C. Third law D. First and third law Answer Option : C 72. In which of the following situations the force applied by the weight of a person becomes zero in a lift A. Lift moves up with an acceleration of 9.8 meter per sq. second B. Lift moves down with an acceleration of 9.8 meter per sq. second C. Lift moves up with an speed of 9.8 meter per second D. Lift moves up with down speed of 9.8 meter per second Answer Option : B 73. On which of the following the jet Engine works? A. Conservation of energy B. Conservation of Linear Momentum C. Conservation of Mass D. Conservation of Angular momentum Answer Option : B 74. Which among the following is in action in the process of a liquid rising in the syringe when the piston is pulled up? A. Capillary action B. surface tension C. atmospheric pressure D. cohesive forces Answer Option : C 75. Which among the following character of mercury makes it suitable to use in barometers instead of water? A. Low density and low vapor pressure B. High density and high vapor pressure C. Low density and good conductor of heat D. High density and low vapor pressure Answer Option : D 76. When a barometer is taken down in a coal mine , which of the following happens with the Mercury level in the tube? A. rises B. falls C. falls then rises D. remains unaltered Answer Option : A 77. what happens when a ship enters a Sea from a river ? A. It rises B. It remains at the same level C. sinks a little D. None of the above Answer Option : A 78. A transition from the solid to gas phase with no intermediate liquid stage is called? A. Evaporation B. Sublimation C. Adsorption D. Solid Phase extraction Answer Option : B 79. Which among the following works while we wipe with a towel.? A. evaporation B. osmosis C. capillary action D. surface tension Answer Option : C 80. If water is heated , it vapor pressure will ______ A. Increase B. decrease C. first increase and then decrease D. nothing happens to vapor pressure Answer Option : A
71. A person who is pulling a bucket filled with water falls behind with the sudden break of the rope. Which of the following laws of Newton comes into action? A. First Law B. Second law C. Third law D. First and third law Answer Option : C
72. In which of the following situations the force applied by the weight of a person becomes zero in a lift A. Lift moves up with an acceleration of 9.8 meter per sq. second B. Lift moves down with an acceleration of 9.8 meter per sq. second C. Lift moves up with an speed of 9.8 meter per second D. Lift moves up with down speed of 9.8 meter per second Answer Option : B
73. On which of the following the jet Engine works? A. Conservation of energy B. Conservation of Linear Momentum C. Conservation of Mass D. Conservation of Angular momentum Answer Option : B
74. Which among the following is in action in the process of a liquid rising in the syringe when the piston is pulled up? A. Capillary action B. surface tension C. atmospheric pressure D. cohesive forces Answer Option : C
75. Which among the following character of mercury makes it suitable to use in barometers instead of water? A. Low density and low vapor pressure B. High density and high vapor pressure C. Low density and good conductor of heat D. High density and low vapor pressure Answer Option : D
76. When a barometer is taken down in a coal mine , which of the following happens with the Mercury level in the tube? A. rises B. falls C. falls then rises D. remains unaltered Answer Option : A
77. what happens when a ship enters a Sea from a river ? A. It rises B. It remains at the same level C. sinks a little D. None of the above Answer Option : A
78. A transition from the solid to gas phase with no intermediate liquid stage is called? A. Evaporation B. Sublimation C. Adsorption D. Solid Phase extraction Answer Option : B
79. Which among the following works while we wipe with a towel.? A. evaporation B. osmosis C. capillary action D. surface tension Answer Option : C
80. If water is heated , it vapor pressure will ______ A. Increase B. decrease C. first increase and then decrease D. nothing happens to vapor pressure Answer Option : A
