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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the calorific value of LPG?
💡 Hint: Think about which fuel produces the most heat.
Question 2
Easy
Name one solid fuel.
💡 Hint: This fuel is commonly used in many households.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the calorific value of coal?
- 6000-8000 kJ/kg
- 25000-33000 kJ/kg
- 45000 kJ/kg
💡 Hint: Consider the range provided in the section.
Question 2
True or False: LPG produces more pollutants than coal.
- True
- False
💡 Hint: Evaluate the environmental impact of both fuels.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
If you have 10 kg of cow dung and 5 kg of LPG, calculate the total energy produced if cow dung gives 7000 kJ/kg, and LPG gives 55000 kJ/kg.
💡 Hint: Break it down by calculating the energy from each fuel separately.
Question 2
A household using coal emits 10 times more CO2 than a household using LPG. If the LPG household emits 100 kg of CO2 per month, how much does the coal household emit?
💡 Hint: What multiplier do we need to consider for the emissions?
Challenge and get performance evaluation