Pitot And Static System

Question 1

Pitot/Static System Errors
What happens to the following instruments when the static vent is blocked:
1-altimeter
2-VSI
3-ASI
4-what happens to the ASI when the pitot tube is blocked

Answer 1

1-freezes at constant value
2-freezes at 0
3-underreads in climb, over reads in descent
4-overreads in climb, underreads in descent