*TB 142- Opening Screen Covers For Storm Water Catch Basin

Question 1

Screen Covers For Storm Water Catch Basin:
To prevent pooling, the screens locking mechanisms are designed to swing open during major storm events when the water level reaches ____ of the screen height and allow any water or debris in. The screen then closes and locks once the water subsides.

Answer 1

Half

Question 2

Screen Covers For Storm Water Catch Basin:
The City has installed screens with two types of release/unlocking mechanisms. Type II has a screen plate ____ (parallel/perpendicular?) to the screen and has the nameplate _____ (riveted/stenciled?) onto the screen.

Answer 2

• Parallel

* stenciled

Question 3

Screen Covers For Storm Water Catch Basin:
The City has installed screens with two types of release/unlocking mechanisms. Type II requires a ____ (pry/poke?) action by a straight object to disengage the locking mechanism

Answer 3

Poke (“horizontal straight push”)

Question 4

Screen Covers For Storm Water Catch Basin:
The City has installed screens with two types of release/unlocking mechanisms. Type I requires a ____ (pry/poke?) action by a straight object to disengage the locking mechanism.

Answer 4

Pry (“upward motion”)

Question 5

Screen Covers For Storm Water Catch Basin:
The City has installed screens with two types of release/unlocking mechanisms. With both Type I and II screen covers, you start out by inserting a straight object (screwdriver) through a screen hole approx how far up from the bottom edge of the screen?

Answer 5

1/3 up

Question 6

Screen Covers For Storm Water Catch Basin:
The City has installed screens with two types of release/unlocking mechanisms. Type I has a screen plate ____ (parallel/perpendicular?) to the screen and has the nameplate _____ (riveted/stenciled?) onto the screen.

Answer 6

• perpendicular

* riveted