Motorrummet är torrt och rent.

Motorrummet is the definite form, meaning the engine compartment or the engine room.

In Swedish, the definite article is usually added to the end of the noun instead of being a separate word like the in English.

• ett motorrum = an engine compartment / an engine room
• motorrummet = the engine compartment / the engine room

The ending -et shows that this is a neuter noun in the singular definite form.

Because rum is a neuter noun in Swedish. Swedish nouns belong to two grammatical genders:

• en-words
• ett-words

Since rum is an ett-word, the compound noun motorrum is also an ett-word:

• ett rum
• ett motorrum

In Swedish compounds, the last part usually determines the grammatical gender. Since the last part is rum, the whole word becomes an ett-word.

Because the noun motorrummet is neuter singular, and Swedish adjectives must agree with the noun.

For a basic adjective in Swedish:

• common gender singular: torr, ren
• neuter singular: torrt, rent
• plural: often torra, rena

So:

• en stol är ren = a chair is clean
• ett rum är rent = a room is clean

Since motorrummet is an ett-word, the adjectives take the -t form:

• torrt
• rent

Är means is / are / am and is the present tense of vara (to be).

In this sentence, it links the subject to the description:

• Motorrummet = the engine compartment
• är = is
• torrt och rent = dry and clean

So the structure is simply:

subject + verb + description

Just like in English:

• The engine compartment is dry and clean.

Because here the sentence is using predicative adjectives, not attributive adjectives.

Compare:

• det torra, rena motorrummet = the dry, clean engine compartment

  • adjectives come before the noun

• Motorrummet är torrt och rent = The engine compartment is dry and clean

  • adjectives come after the verb är

This works very much like English:

• the clean room
• the room is clean

Yes, och means and, and in a sentence like this it works just like English and:

• torrt och rent = dry and clean

In normal speech, och is often pronounced very lightly, sometimes almost like å.

Yes. Motorrum is a Swedish compound noun made from:

• motor = engine / motor
• rum = room / compartment

So literally it is something like motor-room, but in natural English it would often be translated as engine compartment or sometimes engine room, depending on context.

Swedish uses compound nouns very freely, and they are usually written as one word.

The word order is:

Motorrummet + är + torrt och rent
subject + verb + complement

This is the normal word order for a simple statement in Swedish, and it matches English quite closely here.

So if you think of it as:

• The engine compartment
  • is
    • dry and clean

you will understand the structure correctly.

A rough pronunciation guide for an English speaker is:

moh-TOHR-room-met

A few things to notice:

• rr is pronounced with Swedish r sounds, which vary by dialect
• u in rum is not quite like English room, though that is a helpful approximation
• the -et at the end is the definite ending, pronounced clearly

The stress is mainly on to in motor:
mo-TOR-rum-met

Yes. That would also be correct.

• Motorrummet är torrt och rent
• Motorrummet är rent och torrt

Both mean essentially the same thing: The engine compartment is dry and clean.

The order of the adjectives can change depending on what the speaker wants to emphasize or what sounds more natural in context. There is no important grammar difference here.