Practice What You Have Learnt (4.9) - COMBUSTION AND FLAME

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9 questions

Flashcard drill
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Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is combustion?
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Remember it involves burning.
Question 2.
Name a combustible material.
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Think of something used for fuel.
3Question 3.
What is the process of combustion?
- Freezing
- Burning
- Condensation
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It involves heat and light.
4Question 4.
True or False: All fuels burn at the same temperature.
- True
- False
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Recall the notion of ignition temperature.
Question 5.
If the caloriﬁc value of a fuel is 43,000 kJ/kg, how much energy will 2.5 kg yield?
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Use the formula: Energy = Calorific Value x Mass.
Question 6.
A forest fire can spread if dry conditions are not addressed. Propose measures to prevent such fires from spreading.
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Think about prevention tactics in fire control.

5 more questions in this section. Enroll free to practise them all.