to quench a fire

When firefighter quenches a fire with water, all the flames/blazes ends.

Is the above correct?

Thank you.

Not quite.

When a firefighter quenches a fire with water, the fire goes out, leaving a smoldering mass.

AlpheccaStarsNot quite.When a firefighter quenches a fire with water, the fire goes out, leaving a smoldering mass.

What does "go out" mean here?

Thank you.

It means ceases to burn.

AlpheccaStarsNot quite.When a firefighter quenches a fire with water, the fire goes out, leaving a smoldering mass.

Which of the following can we say instead of your sentence?

1) When a firefighter drowns out a fire with water, the fire goes out, leaving a smoldering mass.

2) When a firefighter stops a fre with water, the fire goes

1) When a firefighter drowns out a fire with water, the fire goes out, leaving a smoldering mass. OK

2) When a firefighter stops a fire with water, the fire goes out, leaving a smoldering mass. No.

3) When a firefighter puts out a fire with water, the fire

AlpheccaStars When a firefighter puts out a fire with water, the fire goes out, leaving a smoldering mass. Redundant

What do you mean by redundant? What part of the sentence is redundant? It's phrasal verb "put out" so what is redundant I cannot understand?

Thank you.

hhttWhat do you mean by redundant? What part of the sentence is redundant? It's phrasal verb "put out" so what is redundant I cannot understand?

"Put out the fire" has in its meaning that the fire goes out.
So your two clauses say the same thing. Redundant means unnecessary repetition.
The grammar isn't wrong, but it is bad style.