Which of the following is/are the characteristics/characteristics of Indian coal?
1. High ash content.
2. Low sulfur content.
3. Low ash fusion temperature.
Select the correct answer using the codes given below:
1. High ash content.
2. Low sulfur content.
3. Low ash fusion temperature.
Select the correct answer using the codes given below:
Important Questions on Sources of Energy
Consider the following statements regarding two non-conventional energy sources called coal bed methane and shale gas:
1. Coal bed methane is the pure methane gas extracted from coal seams, while shale gas is a mixture of propane and butane that can be extracted from fine-grained sedimentary rocks.
2. In India, abundant coal bed methane sources exist, but no shale gas sources have been found so far.
Which of the statements given above is/are correct?
With reference to 'fuel cells' in which hydrogen-rich fuel and oxygen are used to generate electricity. Consider the following statements:
If pure hydrogen is used as a fuel, the fuel cell emits heat and water as by-products.
Fuel cells can be used for powering buildings and not for small devices like laptop computers.
Fuel cells produce electricity in the form of Alternating Current (AC).
Which of the statements given above is/are correct?
