Heat | Ignition Temperature | Combustion and Flame Class 8 Science | CBSE | NCERT. MCQ Questions for Class 8 Science with Answers were prepared based on the latest exam pattern. 4. Class 8 Science Solved Q&A. Temperature codes have built-in safety factors. (c) attainment of ignition temperature of the substance. ... thank you madam I am of 8 th class it helped me lot. View Answer. The ignition temperature of Diesel fuel No.1 ranges from 450 to 602 Kelvin, Diesel fuel No. 1. ... Q10: What is ignition temperature? Inflammable Substance: A substance which has very low ignition temperature so that is can easily catch fire is called an inflammable substance, e.g. 5. Water is commonly used to control fires. Check the below NCERT MCQ Questions for Class 8 Science Chapter 6 Combustion and Flame with Answers Pdf free download. Boiling point b. Melting point c. Ignition temperature d. Critical temperature Ans.9(c) 10. ... Ignition temperature – For catching fire, a combustible substance must reach its ignition temperature. Propane - Thermophysical properties - Chemical, Physical and Thermal Properties of Propane Gas - C 3 H 8; Standard Grade Coal - Heat Value - Standard grades coal and heating values; Toluene - Density and Specific Weight - Linear temperature expansion coefficients for aluminum, copper, glass, iron and other common materials Answer. Science MCQs for Class 8 Chapter Wise with Answers PDF Download was Prepared Based on Latest Exam Pattern. (ii) Presence of O2 (supporter of combustion) (iii) Heating to its ignition temperature. A class that stores temperature information, and allows conversion between different units. a. Difference between types of fuels has been explained. Ignition temperature is the lowest temperature at which a combustible substance catches fire. Good fuels have a. low ignition temperature and high calorific value. In this chapter, the students will learn about combustion, types of combustion, flames, the structure of a flame. Answer: Combustion can take place in the presence of: (a) a combustible substance. (b) oxygen, that is, the supporter of combustion. Combustion and Flame class 8 living science solution A. Formative and Summative Assessment 1. Booster 2. Class 8 Chemistry Combustion and Flame: Ignition temperature: Ignition temperature. (d) 9. It is also used to characterize the fire hazards of fuels. ... A matchstick, a piece of wood or a can full of kerosene do not catch fire on their own because the ignition temperature of these substance are higher that the room temperature (25 °C). NCERT Exemplar for Class 8 Science Chapter 6 Combustion and Flame Multiple Choice Questions 1. Eileen Tang -- 2005 prefaces We have provided Combustion and Flame Class 8 Science MCQs Questions with Answers to help students understand the concept very well. II. You can also get complete NCERT solutions and Sample papers. In other words, the ignition temperature is the lowest temperature at which a volatile material will be vaporised into a gas which ignites without the help of any external flame or ignition source. The lowest temperature at which a combustible substance catches fire when heated in the air is called its ignition temperature of a substance. Students can solve NCERT Class 8 Science Combustion and Flame MCQs Pdf with Answers to know their preparation […] Q12: Can a matchstick catch fire on its own on room temperature? Download a PDF of free latest Sample questions with solutions for Class 8, Science, CBSE- Combustion and Flame . 8 Which one of the following is combustible? List conditions under which combustion can take place. Then, he started heating the water in beakers I, … Class 8 Science Solved Q&A. When using electrical equipment in classified areas, such as lighting fixtures in Class I, Div. 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