Petroleum doesn't dissolve with water thus when the petroleum is burning and we put water on it, the petroleum will just float and won't stop burning. Water is a good conductor of electricity thus, if one puts on water on any electrical equipment, he/she might get electrocuted.
Ma'am you left out one unfavourable effect of fuel; incomplete combustion of fuels can produce carbon monoxide gas which is poisonous and toxic. If coal is made to undergo combustion in a closed room, the accumulating carbon monoxide can kill the people in that room.
Ma'am, the highly inflammable substance that is produced when calcium carbide reacts with ice is acetylene, it has a fire hazard rating of 4 which is severe....
Water is a good conductor of electricity. If used in fires involving electrical equipment, it will cause electric shocks or short circuit. By :- Jaspreet Kaur
This is because the water is heavier than the petrol that’s why it gets on and stop and then petrol still burns and when water is extinguished on the electrical equipment it can cause electric shock and cause more harm to living beings
Thank you mam for the wonderful session but i think you was not as interactive as Khusbu mam or Aishwarya mam. I think you should read comments and answer them more often.
Water is a good conductor of electricity that is why if a person sprays water on an electric fire then they will get an electric shock. If we spray water on petrol fire then petrol will float on water that will increase the range of fire.
Water is a good conductor of electricity. The person gets an electric shock when it comes in contact with the water which is used to extinguish the fire. Due to this reason, water is not used to put off the fire caused due to electricity. From-Arkapravo Dey
We know that water is a good conductor of electricity .The person get electric shock when it come in contact with water which is used to extinguish the fire.Due to this reason ,water is not used to put of the fire due to electricity
As water is a good conductor of electricity when we use water as extinguisher it conducts the fire caused by electricity and causes danger to the people extinguishing it. In case of fires caused by petrol, as petrol is a immiscible substance the petrol fire floats and spread on the water and increases the fire.
Water is not used to extiguish fire caused by electrical equipment or petrol because it will cause electric shocks or short circuit or it can increase fire .
We cant use water in petrol fires Because Water has Oxygen in its composition and Oxygen Supports Combustion. Also Water does a shot circuit in electrical equipment
Water is a good fire extinguisher. But, water cannot be used to extinguish electrical fires. This is because water is a good conductor of electricity. It can cause electric shock and can harm the person who is trying to put it off.
Water is good conductor of electricity.If we use water 💦 to extinguish fire 🔥 caused by electric ⚡💡 equipment.The current comming out of wires can effect water.This can cause electric ⚡ 😲.
ans for the home work This is because water is a good conductor of electricity. It can cause electric shock and can harm the person who is trying to put it off.
In case of electric fire,the water may conduct the current,which can harm the person who is trying to put out the fire.The person might get electrocuted
Answer for homework question:- Water may conduct electricity and it also harms the people trying to douse the fire. Water is heavier than oil. So, oil floats on top of water and the oil keeps burning on the top. This is why water is not used to extinguish fire caused by electrical equipment.
Water is a good conductor of electricity. The person gets an electric shock when it comes in contact with the water which is used to extinguish the fire. Due to this reason, water is not used to put off the fire caused due to electricity...
After answering the homework i searched in google for correct answer. the answer was the exact answer you wrote. So you just copied the answer from google 😑
Water is a good conductor of electricity. If used in fires involving electrical equipment, it will cause electric shocks or short circuit. Electrical fires need to be put out by a substance that is non-conductive, unlike the water or foam found in fire extinguishers. If someone attempts to put out an electrical fire with something like water , there is a high risk of electrocution, since water is conductive. Hence, water is not used to control fires involving electrical equipment.
Homework Question Why water is not used to extinguish fire caused by electrical equipment and petrol? Answer- Water is a good conductor of electricity.The person gets an electric shock when it comes in contact with the water which is used to extinguish the fire. If used in fires involving electrical equipment, it will cause electric shocks or short circuit. Due to this reason, water is not used to put off the fire caused due to electricity. As water is heavier than petrol therefore slips down permitting the petrol to rise to the surface and continue to burn. Besides, the existing temperature is so high that the water poured on the fire evaporates even before it can extinguisher the fire. -Abhirami S
HOME WORK QUESTION Why is water not used to extinguish fire caused by electrical equipment or petrol? Answer- Water is not used for extinguishing fires caused due to electrical faults because water is good conductor of electricity. If water is poured on an electrical fire,the water could conduct electricity causing the person trying to extinguish the fire to experience an electric shock.
1) If someone attempts to put out an electrical fire with water , there is a high risk of injury or death, since water is conductor of electricity. Hence, water is not used to control fires involving electrical equipment. 2)As water is heavier than petrol therefore slips down permitting the petrol to rise to the surface and continue to burn. Besides, the existing temperature is so high that the water poured on the fire evaporates even before it can extinguisher the fire.
thankyou for teaching us freeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
Finding the calorific value :
CV = Kilojule / Kilogram --> kJ/kg
kJ = 10,000
kg = 5
Therefore, CV (calorific value)
= 10,000/5
= 2000.
= 2000 kJ/kg.
Petroleum doesn't dissolve with water thus when the petroleum is burning and we put water on it, the petroleum will just float and won't stop burning. Water is a good conductor of electricity thus, if one puts on water on any electrical equipment, he/she might get electrocuted.
Amazing! Stay tuned to our Channel for further updates on upcoming Amazing Sessions! 👍
💦@@byjus-class-678
Ma'am you left out one unfavourable effect of fuel; incomplete combustion of fuels can produce carbon monoxide gas which is poisonous and toxic. If coal is made to undergo combustion in a closed room, the accumulating carbon monoxide can kill the people in that room.
Ma'am, the highly inflammable substance that is produced when calcium carbide reacts with ice is acetylene, it has a fire hazard rating of 4 which is severe....
water is a best example for non combustible
As the water is heavier than petrol therefore slips down permitting the petrol to rise to the surface and continue to burn
Good! Stay tuned to our Channel for further updates on upcoming Amazing Sessions! 👍
HOMEWORK ANSWER -
If electrical equipment is on fire water may conduct electricity and harm those trying to douse the fire
Amazing😍
📢For more such amazing videos, sign up for free on:
byjus.com/learn/home?BE9R0FRo&
good morning mam my name is Anurag . mam can you please tell what is fuel efficiency .
nothing
Water is a good conductor of electricity. If used in fires involving electrical equipment, it will cause electric shocks or short circuit.
By :- Jaspreet Kaur
thank you mam for teaching us so nicely😊😊
Good! Stay tuned to our Channel for further updates on upcoming Amazing Sessions! 👍
Isn't it salt water?
This is because the water is heavier than the petrol that’s why it gets on and stop and then petrol still burns and when water is extinguished on the electrical equipment it can cause electric shock and cause more harm to living beings
Thank you mam for the wonderful session but i think you was not as interactive as Khusbu mam or Aishwarya mam. I think you should read comments and answer them more often.
Most welcome 😊 Please subscribe for more Interesting classes!
Water is a good conductor of electricity that is why if a person sprays water on an electric fire then they will get an electric shock.
If we spray water on petrol fire then petrol will float on water that will increase the range of fire.
LMAO, No, Its not like that... The petrol is not gonna float or something.
Good! Stay tuned to our Channel for further updates on upcoming Amazing Sessions! 👍
Because water is good conductor of electricity and petrol fire we can't handle with water
I understood this video.
Because water is the good conductor of electricity
Water is a good conductor of electricity. The person gets an electric shock when it comes in contact with the water which is used to extinguish the fire. Due to this reason, water is not used to put off the fire caused due to electricity.
From-Arkapravo Dey
From Google?
@@ujwalj7001 Yes
Good! Stay tuned to our Channel for further updates on upcoming Amazing Sessions! 👍
Amazing session ma'am love you ma'am
You are very beautiful and very nice
We know that water is a good conductor of electricity .The person get electric shock when it come in contact with water which is used to extinguish the fire.Due to this reason ,water is not used to put of the fire due to electricity
Good! Stay tuned to our Channel for further updates on upcoming Amazing Sessions! 👍
As water is a good conductor of electricity when we use water as extinguisher it conducts the fire caused by electricity and causes danger to the people extinguishing it. In case of fires caused by petrol, as petrol is a immiscible substance the petrol fire floats and spread on the water and increases the fire.
Good! Stay tuned to our Channel for further updates on upcoming Amazing Sessions! 👍
12:32 of course we can burn a paper by a single matchstick.
Thank u ma'am
Most welcome Ravi🤩
liquified petroleum gas...
hi mam my name is snigddha
Matchsticks, charcoal, straw
Stone is non combustible
Water is not used to extiguish fire caused by electrical equipment or petrol because it will cause electric shocks or short circuit or it can increase fire .
Good! Stay tuned to our Channel for further updates on upcoming Amazing Sessions! 👍
6:31 Combustion is the process in which a substance react with oxygen and produces heat and light.
Amazing Abhinav🤗
inWater the petrol will float and increase more fire
We cant use water in petrol fires Because Water has Oxygen in its composition and Oxygen Supports Combustion. Also Water does a shot circuit in electrical equipment
Also Sand is used in case of a petroleum or electrical fire.
Good! Stay tuned to our Channel for further updates on upcoming Amazing Sessions! 👍
Thankyou mam for this Amazing Session 👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍😊❤😊❤😊❤😊❤😊❤😊❤❤😊❤😊❤😊❤😊😊❤😊❤👏💫✨💛👋👍💗💕🌻😀🤗❣️🌈❤️🌼💞♥️🤭💖💜💓⭐🌟🌺💐
Water is a good fire extinguisher. But, water cannot be used to extinguish electrical fires. This is because water is a good conductor of electricity. It can cause electric shock and can harm the person who is trying to put it off.
I LIKE COMMERCE AND SCIENCE BOTH
I want physics sir to talk in English.
Good evening mam
Water is good conductor of electricity.If we use water 💦 to extinguish fire 🔥 caused by electric ⚡💡 equipment.The current comming out of wires can effect water.This can cause electric ⚡ 😲.
Water is a conductor.
So it will cause a shock to the person.
Good! Stay tuned to our Channel for further updates on upcoming Amazing Sessions! 👍
kriti is best
Very easy to understand 😊
ans for the home work
This is because water is a good conductor of electricity. It can cause electric shock and can harm the person who is trying to put it off.
fossil fuels, petroleum, cooking gas, kerosene oil, coal, charcoal, wood, leaves, paper, wax, hydrogen gas, ethanol, methane, propane, and propene.
Ma'am what is spm?
In case of electric fire,the water may conduct the current,which can harm the person who is trying to put out the fire.The person might get electrocuted
Yes mam😊❤
If electrical equipment is on fire water electricity and harm those tring to douse the fire involving oil and petrol
liquid Petroleum gas
Combustion is the process in which a substance react with oxygen and produce heat and light
Thank you ma'am
Hi friend
Water is a good conductor of the both
no
Water is good conductor of electricity so , when we put water to electric equipment then we might get shock
Answer for homework question:-
Water may conduct electricity and it also harms the people trying to douse the fire. Water is heavier than oil. So, oil floats on top of water and the oil keeps burning on the top. This is why water is not used to extinguish fire caused by electrical equipment.
What is a conductor of electricity and is alo heavier than petrol so it will harm the one's trying to dose it
Yes
Water is a good conductor of electricity. The person gets an electric shock when it comes in contact with the water which is used to extinguish the fire. Due to this reason, water is not used to put off the fire caused due to electricity...
After answering the homework i searched in google for correct answer. the answer was the exact answer you wrote. So you just copied the answer from google 😑
Hey , not really!
@@ayush-thelearner8028 R U telling the truth? bc the answer in google is simliar to your answer word by word
@@ujwalj7001 Lmao he posted in just 3 secs. Noone can write that fast.
I don't want to make mess,
I can write fast
Please don't make mess
Start
👍👍👍👍👍👍👍👍👍👍👍👍
😊😊😊😊😊😊😊😊😊😊😊
Rock
Water is a good conductor of electricity. If used in fires involving electrical equipment, it will cause electric shocks or short circuit. Electrical fires need to be put out by a substance that is non-conductive, unlike the water or foam found in fire extinguishers. If someone attempts to put out an electrical fire with something like water , there is a high risk of electrocution, since water is conductive. Hence, water is not used to control fires involving electrical equipment.
Good! Stay tuned to our Channel for further updates on upcoming Amazing Sessions! 👍
Start
hi
Homework Question
Why water is not used to extinguish fire caused by electrical equipment and petrol?
Answer-
Water is a good conductor of electricity.The person gets an electric shock when it comes in contact with the water which is used to extinguish the fire. If used in fires involving electrical equipment, it will cause electric shocks or short circuit. Due to this reason, water is not used to put off the fire caused due to electricity. As water is heavier than petrol therefore slips down permitting the petrol to rise to the surface and continue to burn. Besides, the existing temperature is so high that the water poured on the fire evaporates even before it can extinguisher the fire.
-Abhirami S
Amazing! Stay tuned to our Channel for further updates on upcoming Amazing Sessions! 👍
I like BIO 😂😂
😊
Amazing explanation 👍👍
good class❤
Because water is the good conductor of electricity, and it can affect the who is nearby
Because water is good conduter of electricity so water not use to stop electrical fire
👍👍👍👍👍👍👍👍👍👍
Mam, steel
No
Yes
HOME WORK QUESTION
Why is water not used to extinguish fire caused by electrical equipment or petrol?
Answer-
Water is not used for extinguishing fires caused due to electrical faults because water is good conductor of electricity. If water is poured on an electrical fire,the water could conduct electricity causing the person trying to extinguish the fire to experience an electric shock.
Good! Stay tuned to our Channel for further updates on upcoming Amazing Sessions! 👍
Yes mam
start
Yes mam
Yellow
Cotton
Start
cotton
hi mama
snigddha
No
No
low
The real chapter starts at 5:56 thank me later
No
Yes
coal
Yes
No
Hi
S
Nice explanation
hi
Nice mam 🎉🎉
1) If someone attempts to put out an electrical fire with water , there is a high risk of injury or death, since water is conductor of electricity. Hence, water is not used to control fires involving electrical equipment.
2)As water is heavier than petrol therefore slips down permitting the petrol to rise to the surface and continue to burn. Besides, the existing temperature is so high that the water poured on the fire evaporates even before it can extinguisher the fire.
Good! Stay tuned to our Channel for further updates on upcoming Amazing Sessions! 👍
I like science
Hello