Question

СРОЧНО!!!!!! Задание 2. Прочитайте, переведите текст, запишите 4 вопроса к тексту. METHODS OF FIRE EXTINCTION The four components of the fire tetrahedron help us to understand methods of fire extinction. Fire can be extinguished if anyone of these components is removed. The following four basic methods are employed. Removal of Heat (Cooling) Water is most commonly used for cooling a fire. It has great heat absorbing properties. Cooling with water will extinguish a fire by absorbing more heat than the fire is generating. This process depends on reducing the fuel temperature, chemical reaction, oxygen, Heat, air, heat, fuel, oxygen, chemical reaction, chemical reaction, heat, flame, fuel. Removal of Fuel (Starvation) A fire will go out if deprived of its fuel supply by stopping a gas or liquid flow or by removing a fuel to an out-offlame place. Another method of fuel removal is to allow a fire to burn until all fuel is consumed. Exclusion of Oxygen (Diluting & Blanketing) A fire can be extinguished by excluding or limiting its oxygen supply. The oxygen content can be reduced by flooding an area with an inert gas such as carbon dioxide, which dilutes the oxygen. Oxygen can also be separated from fuel by blanketing the fuel with chemical or mechanical foam. Inhibition of Chain Reaction A special case of fire extinguishment suggests the usage of dry chemicals or halogenated hydrocarbons as extinguishing agents. These agents inactivate intermediate products of the exothermic reaction resulting in reducing the combustion rate (the rate of heat evolution) and extinguishing the fire.

Answer 1

Ответ:

вопросы

Is water most often used for?

Inhibition of chain reaction is it?

agents inactivate intermediate products of an exothermic reaction, which leads to?

Can a fire be extinguished, eliminated or limited by oxygen supply?

Объяснение:

МЕТОДЫ ПОЖАРОТУШЕНИЯ

Четыре компонента тетраэдра огня помогают нам понять методы тушения огня. Пожар может быть погашен, если какой-либо из этих компонентов будет удален.

Используются следующие четыре основных метода.

Отвод тепла (охлаждение)

Вода чаще всего используется для охлаждения огня. Обладает отличными теплоизоляционными свойствами. Охлаждение водой погасит огонь, поглощая больше тепла, чем выделяет огонь. Этот процесс зависит от снижения температуры топлива, химической реакции, кислорода, тепла, воздуха, тепла, топлива, кислорода, химической реакции, химической реакции, тепла, пламени, топлива.

Удаление топлива (голодание)

Огонь погаснет, если его лишить подачи топлива, остановив

поток газа или жидкости, или путем удаления топлива из пламени

место. Еще один способ удаления топлива - дать возможность пожара

сжигать, пока не израсходуется все топливо.

Исключение кислорода (разбавление и покрытие)

Пожар можно потушить, исключив или ограничив подачу кислорода. Содержание кислорода может быть уменьшено путем затопления области инертным газом, таким как диоксид углерода, который разбавляет кислород. Кислород также можно отделить от топлива, покрыв его химической или механической пеной.

Ингибирование цепной реакции

Особый случай пожаротушения предполагает использование сухих химикатов или галогенированных углеводородов в качестве огнетушащих средств. Эти агенты инактивируют промежуточные продукты экзотермической реакции, что приводит к снижению скорости горения (скорости выделения тепла) и тушению пожара.

Answer 2

METHODS OF FIRE EXTINCTION

The four components of the fire tetrahedron help us understand methods of fire extinction. Fire can be extinguished if any one of these components is removed. The following four basic methods are employed:

1. Removal of Heat (Cooling): Water is most commonly used for cooling a fire due to its excellent heat-absorbing properties. Cooling with water extinguishes a fire by absorbing more heat than the fire generates. This process involves reducing the fuel temperature, chemical reaction, oxygen, and heat.

2. Removal of Fuel (Starvation): A fire will go out if its fuel supply is cut off. This can be achieved by stopping the flow of gas or liquid fuel or by moving the fuel to a location away from the flame. Another approach is to let the fire burn until all the fuel is consumed.

3. Exclusion of Oxygen (Diluting & Blanketing): Extinguishing a fire can be accomplished by limiting or excluding its oxygen supply. Oxygen levels can be reduced by introducing inert gases like carbon dioxide, which dilutes the available oxygen. Additionally, oxygen can be separated from the fuel by covering it with chemical or mechanical foam.

4. Inhibition of Chain Reaction: Certain extinguishing agents like dry chemicals or halogenated hydrocarbons can be used to inhibit the chain reaction in a fire. These agents deactivate intermediate reaction products, reducing the rate of combustion (heat evolution) and ultimately extinguishing the fire.

Questions:

1. What are the four components of the fire tetrahedron, and how do they relate to fire extinction?
2. How does the process of cooling with water lead to fire extinguishment?
3. What are the two methods of removing fuel to extinguish a fire?
4. Explain how the exclusion of oxygen can contribute to fire extinction, and what are some methods for achieving this?