Questions with the keyword 'difficult'

• How difficult would it be on a scale from 1-10, 10 being most difficult, to dock a Space Shuttle with the ISS by Krishan to Agata, Chris, John, Kirstin, Michael Comments: (No comments so far )
• During the time when you were studying to become an engineer, what were the most difficult situations that you had to by Zohaib to Chris Comments: (No comments so far )