Question

conditional sentences If you blocked the steam using a glass

Answer 1

I didn't understand what are you asking

Answer 2

The given sentence is an example of zero conditional sentences.

Zero conditional sentences:

• We generally use the zero conditional sentences when we need to talk about facts or things that are usually true. Scientific facts are often enclosed by the zero conditional

• The zero conditional uses if or when and must be shadowed by the simple present or imperative.
• This sentence is conditional as it starts with if and it describes the fact that if you want to block steam you have to  use glass.