Question 41 : What is the voltage output of methane-oxygen fuel cell?(in V)
1. -1.16
2. -1.06
3. -1.26
4. -0.96
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Question 42 : 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
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Question 43 : Which of the following are the example of Municipal and industrial discharge pipes
1. nonpoint sources of pollution
2. violations of the Clean Water Act
3. point sources of pollution
4. irrigation
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Question 44 : Brayton cycle corresponds to?
1. IC Engines
2. Gas Turbines
3. Both of the above mentioned
4. None of the above mentioned
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Question 45 : The injection pressure in a diesel engine is about
1. 10 bar
2. 100 bar
3. 150 bar
4. 300 bar
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Question 46 : Which of the following is a major source of groundwater contamination?
1. agricultural products
2. landfills
3. septic tanks
4. all of the mentioned
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Question 47 : A Gas Turbine is also known as?
1. Compression Turbine
2. Compensation Turbine
3. Combustion Turbine
4. None of the mentioned
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Question 48 : Groundwater mining in coastal areas can result into
1. increase in the salinity of groundwater
2. decrease in the toxicity of groundwater
3. decrease in the salinity of groundwater
4. increase in the water table
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Question 49 : The theoretically correct mixture of air and petrol is
1. 20:1
2. 15:1
3. 40:1
4. 50:1
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Question 50 : The concentration of which gas is highest in our environment?
1. Oxygen
2. Hydrogen
3. Nitrogen
4. Carbon dioxide
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