Maharashtra State Board Of Technical Education, Mumbai Online Exam 22447 Summer 2019 PDF

## Maharashtra State Board Of Technical Education, Mumbai ### Online Exam 22447 - Summer 2019 **Welcome:** 1700380363 [192.168.15.2] **Time Remaining:** 01:29:41 **My Home** | Question No | Question | Options | Status | |---|---|---|---| | 1 | Pollution is rising due to - | 1. Research institutes 2. Rain 3. Hydro power projects 4. Automobiles and Industrial wastes | unanswered | | 2 | Extensive planting of trees to increase forest cover is called - | 1. Afforestation 2. Agroforestry 3. Deforestation 4. Social forestry | unanswered | | 3 | Which of the following processes acts to remove carbon dioxide from the atmosphere? | 1. Lightning 2. Deforestation 3. Photosynthesis 4. None of the above | unanswered | | 4 | Layer of atmosphere in which Ozone layer lies is- | 1. Exosphere 2. Mesosphere 3. Troposphere 4. Stratosphere | unanswered | | 5 | Given below are two statements: Assertion (A): Natural vegetation is the true index of climate. Reason (R): Water loving plants are found in moist climate In the context of the above statements, which one of the following is correct? | 1. Both A and R are true and R is the correct explanation of A. 2. Both A and R are true but R is not the correct explanation of A. 3. A is true but R is false. 4. A is false but R is true. | unanswered | | 6 | How can we reduce our need for fossil fuels? | 1. Burn more wood. 2. Burn more gasoline 3. Develop alternative energy sources and use them 4. We can't reduce our need for fossil fuels. It's impossible. | unanswered | | 7 | The image shows - | 1. Earth life cycle 2. Effects of Green house gases 3. Biodiversity 4. Nature present on earth | unanswered | | 8 | The heat of the interior of the earth present at the volcanic regions, geysers or hot springs is called | 1. Geothermal energy 2. Dendrothermal energy 3. Nuclear energy 4. Wind energy | unanswered | | 9 | The main causes of deforestation are | 1. Overgrazing and agriculture 2. Industry and other developmental projects. 3. Timber extraction. 4. All of the above | unanswered | | 10 | Trapped heat inside earth is known as | 1. Thermal energy 2. Geothermal energy 3. Heat energy 4. Volcano | unanswered | | 11 | is not a fossil fuel. | 1. Petroleum 2. Uranium 3. Natural gas 4. Coal | unanswered | | 12 | Per capita use of water is the highest in | 1. USA 2. India 3. Indonesia 4. Kuwait | unanswered | | 13 | Direct conversion of solar energy is attained by | 1. Solar photo voltaic system 2. Solar diesel hybrid system 3. Solar thermal system 4. Solar air heater | unanswered | | 14 | When combustion of coal takes place in insufficient air (oxygen) which gas is formed, instead of carbon dioxide | 1. Sulphur dioxide 2. Nitrous oxide 3. Carbon monoxide 4. Nitrogen peroxide | unanswered | | 15 | Which of the following is not a solution for global warming? | 1. Reducing fossil fuel consumption 2. Planting more trees 3. Deforestation 4. None of the above | unanswered | | 16 | What is the main problem in using hydrogen as fuel? | 1. The burning of hydrogen produces no emissions. 2. The burning of hydrogen produces water. 3. Hydrogen can be produced from water. 4. It takes energy to produce hydrogen. | unanswered | | 17 | Which of the following is not an ideal solution for tackling water crisis? | 1. Drilling large number of deep bore wells 2. Population growth control 3. Water conservation in irrigation 4. Water pollution control. | unanswered | | 18 | Most natural resources we consume at our homes or in our cars are | 1. Renewable 2. Nonrenewable 3. Infinite 4. Free | unanswered | | 19 | following are the examples of natural resources | 1. Coal 2. Minerals 3. Forests 4. All of the above | unanswered | | 20 | Floods can be prevented by | 1. Afforestation 2. Removing the top soil 3. Cutting the forests 4. Tilling the land | unanswered | | 21 | Atmosphere not uniformly heated by the sun does not cause | 1. Air flows 2. Variations in climate 3. Tides 4. Rainfall | unanswered | | 22 | Several agricultural disaster occurs due to lack of biodiversity. Which of the following term is used to describe "lack of biodiversity"? | 1. Aquaculture 2. Pollination 3. Monoculture 4. None of the above | unanswered | | 23 | Lion-Tailed Macaque is found in | 1. Western Ghats 2. Eastern Ghats 3. Caucasus 4. Western Himalaya | unanswered | | 24 | Upper part of the sea aquatic ecosystem contains | 1. Plankton 2. Nekton 3. Benthos 4. Plankton and Nekton| unanswered | | 25 | Which of the following is Islands? | 1. Andaman and Nicobars 2. Lakshadweep 3. Majoli 4. All of the above | unanswered | | 26 | Which of the river plains extend up to Himalayan foot hills? | 1. The gangetic plains 2. Punjab plains 3. Brahmaputra plain 4. None of the above | unanswered | | 27 | Which of the following animal comes under category of "Critically endangered species"? | 1. Sumatran Rhinos 2. Asiatic lion 3. Indian tiger 4. None of the above | unanswered | | 28 | In cryopreservation storage of germ plasm at ultra-low temperature is preserved. That ultra-low temperature is | 1. -196 degree Celsius in liquid nitrogen 2. 196 degrees Celsius in liquid nitrogen 3. 0 degree Celsius in liquid nitrogen 4. 100 degrees Celsius in liquid nitrogen | unanswered | | 29 | The edge effect _the amount of habitat typical to an ecosystem | 1. Increases 2. Reduces 3. Keeps same 4. None of these | unanswered | | 30 | The plants which blooms when the light duration is more than 12 hours per day is known as: | 1. Long day plants 2. Short day plants 3. Day neutral plant 4. Long day and short night plants | unanswered | | 31 | Which of the following is not a greenhouse gas? | 1. Carbon dioxide 2. CFCs 3. Methane 4. Oxygen | unanswered | | 32 | The man-made pollution, such as industrial pollution etc are called as | 1. Anthropogenic 2. Anti-anthropogenic 3. Semi-anthropogenic 4. Natural | unanswered | | 33 | Dairy farming, livestock breeding and horticulture lead to what kind of waste? | 1. Domestic 2. Market 3. Agricultural 4. Commercial | unanswered | | 34 | The process to remove pathogens from water is called | 1. Filteration 2. Sedimentation 3. Aeration 4. Disinfection | unanswered | | 35 | Air pollutants are in the form of | 1. Solid particles 2. Liquid droplets 3. Both 4. None | unanswered | | 36 | Introduction of dangerous chemicals into the ground is due to | 1. Industrial waste disposal 2. Domestic waste disposal on land 3. Overwatering 4. None of these | unanswered | | 37 | Composting is a process of treatment of | 1. Solid waste 2. Liquid waste 3. Gaseous waste 4. None of these | unanswered | | 38 | Anthropogenic source of pollution is | 1. Acid rain 2. Use of chemical fertiliser 3. Earthquakes 4. All of these | unanswered | | 39 | Which of the following air pollution control devices is suitable for removing the finest dust from air? | 1. Clarifier 2. Electrostatic precipitator 3. Flash Mixer 4. None of above | unanswered | | 40| Components of e-waste that can be recycled are | 1. Copper wires 2. Hard drive 3. CPUS 4. All of these | unanswered | | 41 | is not a type of pollution. | 1. Soil pollution 2. Wastewater pollution 3. Air pollution 4. Noise pollution | unanswered | | 42 | Everyone is affected by the quality of air. Which people are likely to be affected and become sick? | 1. Elderly people 2. Asthmatics 3. People with respiratory diseases 4. All of these | unanswered | | 43 | Which gas is primarily responsible for depletion of ozone layer around the earth? | 1. Chlorofluoro carbons 2. Nitrogen 3. Oxygen 4. Nitrogen oxide | unanswered | | 44 | Design of a sewage treatment plant is mainly dependent upon | 1. Density of sewage 2. Temperature of sewage 3. BOD of sewage 4. Mass of sewage | unanswered | | 45 | Sound becomes hazardous noise pollution at decibel above | 1. 80 2. 100 3. 30 4. 120 | unanswered | | 46 | Acid rain is formed due to contribution from the following pair of gases | 1. Methane and ozone 2. Oxygen and nitrous oxide 3. Methane and sulphur dioxide 4. Carbon dioxide and sulphur dioxide | unanswered | | 47 | The rate of growth of population in developing countries is | 1. Equal to that of developed countries 2. Greater than that of developed countries 3. Smaller than that of developed countries 4. All of A, B & C | unanswered | | 48 | Name the state in India where Wildlife protection Act is not applicable? | 1. Maharshtra 2. Jammu and Kashmir 3. Karnataka 4. Madhya Pradesh | unanswered | | 49 | Environmental impact of development projects can be | 1. Immediate 2. Short term 3. Long term 4. All of these | unanswered | | 50 | Feature of formal education is | 1. Education as a Full time and Primary activity 2. Education as a Parttime and secondary activity 3. Education during Vacation 4. Education as an optional activity | unanswered | | 51 | are the components of roof top rainwater harvesting. | 1. Roof, pipes, well 2. Basement, pipes and filters 3. Pipes, well, filter, tank 4. Catchment, Transportation, First flush, Filter | unanswered | | 52 | Environmental Compliance refers to? | 1. Conforming to government laws 2. Conforming to constitutional laws 3. Conforming to environmental laws 4. Conforming to tribal laws | unanswered | | 53 | Common treatment methods for watershed deterioration are | 1. Excavation of trenches across the slope to break the velocity of runoff 2. Stones are dry packed across the hill slope to intercept surface runoff 3. Conversion of slopes into level steps fields 4. All of A, B & C | unanswered | | 54 | The equitable use of resources is necessary for | 1. Sustainable development 2. Better lifestyle for all 3. To sustain natural wealth 4. All of A, B & C | unanswered |

Maharashtra State Board Of Technical Education, Mumbai Online Exam 22447 Summer 2019 PDF

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