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Where should you point the nozzle of a fire extinguisher when you are putting out a fire?
When using a fire extinguisher, you should point the nozzle at the base of the fire, not the flames. This is because targeting the base helps to extinguish the source of the fire, effectively cutting off its fuel supply. Additionally, remember to use a sweeping motion from side to side to cover the area thoroughly. Always ensure you stand at a safe distance while operating the extinguisher.
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What meaning does putting an exclamation mark after thank you have?
Putting an exclamation point after "thank you" conveys great enthusiasm in expressing thanks. The exclamation point should goes at the end of a sentence.
What is fire point?
Fire point is that point where fire extinguisher and fire buckets will be easily available in case of emergency's can be use immediately.
What is critical pressure in nozzle?
Critical pressure in a nozzle is the pressure at which the flow of material through the nozzle reaches its maximum. Beyond which any increase in pressure will not result in an increase in flow. The point at which the velocity of a fluid in the throat of the nozzle reaches the local speed of sound, creating a sonic wave, or a sonic choke.
What is the distance of Vena-Contracta from Nozzle?
The vena contracta is typically located at a distance of approximately half the diameter of the nozzle downstream from the nozzle exit. This is the point where the fluid stream reaches its minimum cross-sectional area and maximum velocity, following the contraction caused by passing through the nozzle. The exact distance can vary depending on factors like the flow conditions and the specific geometry of the nozzle.
What is a gas cutting nozzle material composition?
its tengstun whos melting point is 3500*c
Where should you aim a fire extinguisher when extinguishing the fire?
My dad s a retired fire fighter and the mechanisms he used were although more olden kind, they were similar to the fire extinguisher. In a life threatening situation you must not panic and aim it in the middle up of the fire, releasing the outer burning energy and then go around it smothering the fire. HOPE THAT HELPS!!!
Why Fluid Speed Increases in the Divergent Portion of a Convergent-Divergent nozzle?
Because the fluid is allowed to expand in the nozzle it increases velocity to fill in the voids created by the shape of the nozzle. The convergent point of the nozzle acts like a bottleneck trying to slow the fluid and compress it into the reduced crosssection of the nozzle. As it leaves the minimum crosssection it expands into the divergent spaces of the nozzle increasing in velocity as it expands. ++_+ No: it gains velocity through the convergence but in the diverging section, trades velocity for pressure.
Can a fire extinguisher blow up if thrown into a fire?
The metal shell of an extinguisher is extremely strong. It could conceivably burst if the pressure got high enough. But the "release" (nozzle) ends of almost all extinguishers are designed to fail at pressures much lower than would rupture the metal shell.Similarly, a shell that was cracked or cut would tend to puncture, releasing the pressure at the point of damage rather than bursting wide open.The greatest danger would be from an extinguisher whose shell had corroded, weakening it without releasing the contents. There are several cases where rough handling of rusted extinguishers caused injurious or fatal explosions.
Why does gas nozzle at pump stop when gas tank is empty?
It doesn't. It stops when the tank is full. Assuming you are asking why the gas nozzle shuts off when the tank is full, I am not an engineer but I would guess that there is some type of pressure sensor in the nozzle that reads back pressure coming from the neck of the vehicle fuel tank and when that pressure reaches a certain point, it shuts the nozzle off.
What kind of nozzles do rockets usually have?
In general , they all has Laval nozzle. But depending from the stage, it could be smaller or bigger. For optimal performance the same engine from the first stage will have shorter nozzle than from the second stage. That's because the pressure on the end point of the nozzle must be equal to the pressure of atmosphere.
How do you adjust the windshield washers on a 2002 Odyssey?
put a needle in the nozzle hole and point it in the direction you want it to spray
What is flash point of PVC?
Nylon Flash point - 400° Centigrade Fire extinguishing media: Water fog, foam, CO2 or dry chemical extinguisher Fire personnel should wear fire protective gear and self-contained breathing apparatus Cross-Link Polyethylene Flash point - 650° Centigrade Extinguishing media: Water spray, CO2 or dry chemical fire extinguisher Dense smoke emitted when burned without sufficient oxygen. Possible dust explosion if fines accumulate. Fire personnel should wear standard fire fighting attire.
