Q.1. Define Combustion and ignition temperature. List conditions under which combustion can take place.
Q.2. What is caused by burning of wood and coal?
Q.3. What type of fire extinguishers should be used to control the fire produced by oil?
Q.4. Explain how the use of CNG in automobiles has reduced pollution in our cities.
Q. 5. Compare LPG and wood as fuels.
Q.6. Give reasons.
(a) Water is not used to control fires involving electrical equipment.
(b) LPG is a better domestic fuel than wood.
(c) Paper by itself catches fire easily whereas a piece of paper wrapped around an aluminium pipe does not.
Q.7.Make a labelled diagram of a candle flame and write a few lines on the same.
Q.8. Name the unit in which the calorific value of a fuel is expressed.
Q.9. Explain how CO2 is able to control fires.
Q.10. It is difficult to burn a heap of green leaves but dry leaves catch fire easily. Explain.
Q.11.Which zone of a flame does a goldsmith use for melting gold and silver and why?
Q.12. Can the process of rusting be called combustion? Discuss.
+ 53 Multiple Choice Questions with Answers
Combustion and Flame- Important Questions & MCQs
Combustion and Flames Chapter 6 Class 8
Tous les niveaux • 5 Conférences • Accès à vie
Instructeur Maître Vérifié
Rencontrez votre instructeur : Prabh Kirpa Classes
19 ms
Ce que vous apprendrez
Apply Real-World Trade & Supply Chain Intelligence with Volza
Accelerate your SAP, logistics, and enterprise operations with direct access to over 3.2 billion authentic customs bills of lading across 209 countries. Analyze genuine shipping routes, monitor competitor suppliers, and connect with verified procurement decision-makers.
Customs Records
Decision-Makers
Enterprise Sourcing
Contenu du cours
5 rubriques • 5 conférences • 01:04:06 longueur totaleConditions necessary for combustion, ignition temperature, LPG vs. wood as fuels
Q.1. Define Combustion and ignition temperature. List conditions under which combustion can take place.
Q.2. (a) What is caused by burning of wood and coal?
Q.2(b) Liquid fuel used at homes is called ?
Q.2(c) Fuel starts burning when it is heated up to its _____ temperature?
Q.2 (d) What type of fire extinguishers should be used to control the fire produced by oil?
Q.3. Explain how the use of CNG in automobiles has reduced pollution in our cities.
Q. 4. Compare LPG and wood as fuels
How CO2 controls fire + many more questions
Q. 5. Give reasons.
(a) Water is not used to control fires involving electrical equipment.
(b) LPG is a better domestic fuel than wood.
(c) Paper by itself catches fire easily whereas a piece of paper wrapped around an aluminium pipe does not.
Q.6. Make a labelled diagram of a candle flame
Q.7. Name the unit in which the calorific value of a fuel is expressed.
Q.8. Explain how CO2 is able to control fires.
Q.9. Why it is difficult to burn a heap of green leaves but dry leaves catch fire easily?
Q.10. Which zone of a flame does a goldsmith use for melting gold and silver and why?
Q.11. In an experiment 4.5 kg of a fuel was completely burnt. The heat produced was measured to be 180,000 kJ. Calculate the calorific value of the fuel.
Q.12. Can the process of rusting be called combustion? Discuss.
Q.13. In which zone of the candle flame, water gets heated in a shorter time?
Planifiez votre parcours
L’IA génère un emploi du temps personnalisé selon vos disponibilitésPrérequis
Class 8
Students interested in Chapter of Combustion and Flame
À propos de ce cours
Q.1. Define Combustion and ignition temperature. List conditions under which combustion can take place.
Q.2. What is caused by burning of wood and coal?
Q.3. What type of fire extinguishers should be used to control the fire produced by oil?
Q.4. Explain how the use of CNG in automobiles has reduced pollution in our cities.
Q. 5. Compare LPG and wood as fuels.
Q.6. Give reasons.
(a) Water is not used to control fires involving electrical equipment.
(b) LPG is a better domestic fuel than wood.
(c) Paper by itself catches fire easily whereas a piece of paper wrapped around an aluminium pipe does not.
Q.7.Make a labelled diagram of a candle flame and write a few lines on the same.
Q.8. Name the unit in which the calorific value of a fuel is expressed.
Q.9. Explain how CO2 is able to control fires.
Q.10. It is difficult to burn a heap of green leaves but dry leaves catch fire easily. Explain.
Q.11.Which zone of a flame does a goldsmith use for melting gold and silver and why?
Q.12. Can the process of rusting be called combustion? Discuss.
+ 53 Multiple Choice Questions with Answers
Opportunités de Carrière et Métiers Cibles
Développez des compétences directement applicables pour accéder à des postes recherchés
Certified Domain Practitioner
Technical Project Specialist
Operations & Implementation Lead
Independent Consultant / Freelancer
$70,000 – $115,000 / yr
High Global Market Applicability
Prabh Kirpa Classes
Les étudiants ont également acheté
Les apprenants qui ont consulté ce cours se sont également inscrits à ces cours les mieux notés.
Unlock the world of 3D printing and product creation with a hands-on, industry-focused course designed to turn your ideas into reality. Whether you’re an engineer, designer, technician Masterclass.
$12.99
Taking Your Mastery of Probability to the Next Level
$9.99
$19.99
Advanced Formulas and Strategies for Cone Surface Area Determination
$19.99
Master all important Current Affairs from June 1–30, 2026 with daily video lectures, MCQs, exam-oriented explanations an
$29.99
$39.99
Unlocking the Power of Bar Charts for Effective Data Communication
$14.99
$19.99
Foire aux questions
Trouvez les réponses aux questions les plus courantes sur ce cours.
Oui! Après avoir terminé 100 % des cours et des devoirs du cours, vous pouvez télécharger instantanément votre certificat d'achèvement numérique vérifié directement à partir de votre profil Lucebra.
En savoir plus dans Technology
Enrichissez votre parcours avec des certificats accrédités, des livres numériques et des cours interactifs en direct.