Skip to main content

Catch basins & manholes

How is the bottom elevation of catch basins & manholes identified?
AnswerThis is identified as the INVERT elevation, which is indicated at the bottom of catch basins, manholes as well as drains.

ARE 4.0 exam prep: SPD

Comments

  1. Unknown4/27/11, 4:25 PM

    Your answer is partially incorrect. Yes, it's the INVERT elevation, but the invert elevation is defined as the elevation of the inside of the lowest pipe as it enters (or exits) a catch basin. The catch basin itself can extend below that, and often does.

    ReplyDelete

Post a Comment

Try These Too!

Wood stairs

In wood stair construction, what is the difference between a carriage and a stringer?! Answer A carriage is the principle support for the treads and risers, whereas the stringer is the finish member (face) that treads and risers terminate against. ARE 4.0 exam prep: BDCS
Post a Comment
See the answer »

Bolted connections

What is the minimum spacing of bolts specified by AISC? and preferred spacing? A. 1 1/4 times the diameter of the bolt; 2 times preferred B. 1 3/4 times the diameter of the bolt; 2 1/4 times preferred C. 2 1/3 times the diameter of the bolt; 2 2/3 times preferred D. 2 2/3 times the diameter of the bolt; 3 times preferred E. 3 times the diameter of the bolt; 3.25 times preferred
Post a Comment
See the answer »

Brick bonds

What distinguishes the English Bond pattern from the Dutch Bond pattern in this image? Answer In the English Bond, stretchers are aligned; In the Dutch (cross), stretchers move by a half each course (not aligned). ARE 4.0 exam prep: BDCS
Post a Comment
See the answer »