La instructora revisa cómo mosquetoneamos la cuerda de escalada.

Because instructora is a feminine noun meaning female instructor. Spanish marks grammatical gender more often than English, so the article changes too:

• el instructor = the male instructor
• la instructora = the female instructor

In this sentence, the person is being referred to as female, so la instructora is the correct form.

Not usually. This is a very common false friend.

In Spanish, revisar often means:

• to check
• to inspect
• to look over
• to review

So here La instructora revisa... is better understood as The instructor checks / looks at / reviews..., not revises in the sense of rewrites or edits.

Because the subject is singular: La instructora.

So the verb must match that subject:

• La instructora revisa = the instructor checks
• Las instructoras revisan = the instructors check

Even though mosquetoneamos means we carabiner/clip, that is inside the subordinate clause and has its own subject understood as we. The main verb still agrees with la instructora.

Here cómo means how.

The sentence structure is:

• La instructora revisa = The instructor checks
• cómo mosquetoneamos la cuerda de escalada = how we clip/carabiner the climbing rope

So the full idea is The instructor checks how we are clipping/using the rope with carabiners.

Because it is being used as an interrogative/exclamative form, even inside an indirect question.

Compare:

• No sé cómo hacerlo. = I don’t know how to do it.
• Lo hice como me dijiste. = I did it as/like you told me.

So:

• cómo with an accent = how
• como without an accent = as / like / I eat, depending on context

In your sentence, it introduces an indirect question: how we clip the rope, so it needs the accent: cómo.

It is real in climbing usage, but it is specialized and fairly informal/technical jargon rather than everyday general Spanish.

It comes from mosquetón, which means carabiner. The verb mosquetonear is used by climbers to talk about clipping something with a carabiner or managing carabiners in the climbing system.

So mosquetoneamos means something like:

• we clip with carabiners
• we carabiner
• we attach using carabiners

The exact English wording depends on the climbing context.

This is the 1st person plural present indicative form of mosquetonear:

• yo mosquetoneo
• tú mosquetoneas
• él/ella mosquetonea
• nosotros/nosotras mosquetoneamos
• vosotros/vosotras mosquetoneáis
• ellos/ellas mosquetonean

So mosquetoneamos means we clip with carabiners or we are clipping with carabiners.

Spanish often uses the simple present where English might use either the simple present or the present continuous, depending on context.

Because Spanish usually drops subject pronouns when the verb ending already makes the subject clear.

Here, mosquetoneamos already tells you the subject is we.

So:

• cómo mosquetoneamos... = how we clip...
• cómo nosotros mosquetoneamos... is possible, but it adds emphasis or contrast

Spanish normally prefers the version without the pronoun unless there is a reason to stress it.

La cuerda de escalada means the climbing rope or more literally the rope for climbing / of climbing.

The phrase de escalada specifies what kind of rope it is. Without that extra phrase, la cuerda would just mean the rope, and the type would depend on context.

This de + noun pattern is very common in Spanish for classification:

• zapatos de montaña = mountain shoes / hiking boots
• equipo de buceo = diving gear
• cuerda de escalada = climbing rope

Spanish uses definite articles more often than English.

Here la cuerda de escalada refers to a specific rope in the situation, or to the rope being worked with in that activity. In practical context, Spanish often keeps the article where English might sometimes drop it.

So la cuerda de escalada is perfectly natural.

Because after verbs like ver, revisar, comprobar, observar, Spanish often uses a clause introduced by cómo to explain what is being checked or observed.

So the structure is:

• [subject] + revisa + cómo + [clause]

Examples:

• El profesor revisa cómo escribimos. = The teacher checks how we write.
• La entrenadora observa cómo corremos. = The coach watches how we run.
• La instructora revisa cómo mosquetoneamos la cuerda de escalada.

This is a very natural pattern in Spanish.

Yes. The Spanish present tense often covers both meanings, depending on context.

So La instructora revisa... can mean:

• The instructor checks...
• The instructor is checking...

If the speaker wanted to emphasize the action as ongoing right now, they could also say:

• La instructora está revisando cómo mosquetoneamos la cuerda de escalada.

But the simple present is completely normal here.

Not necessarily. It is specialized climbing vocabulary, and usage can vary by country, region, or climbing community.

A learner should recognize that:

• it is understandable in climbing contexts
• it may sound technical or like jargon
• not all Spanish speakers outside that context would use it naturally

So this is a good example of domain-specific Spanish, especially useful if you are learning climbing vocabulary rather than only everyday general Spanish.