BGE Blueprint Reading & Interpretation 3

Question 1

On a utility as-built drawing, what is the primary purpose of recording field-verified measurements?

Accepted Answer

To document actual installed conditions that may differ from design drawings

Answer

As-built drawings capture the actual installed conditions, including any field changes, so future crews have accurate location data.

Question 2

A cross-section drawing on a BGE gas main blueprint shows a dimension of '42" cover.' What does this mean?

Accepted Answer

The pipe has 42 inches of soil above it

Answer

Cover refers to the depth of soil between the top of the pipe and the ground surface, and 42 inches meets typical minimum depth requirements.

Question 3

What does a 'slug' or 'title block' on a BGE blueprint drawing contain?

Accepted Answer

Project name, drawing number, revision, date, and approval signatures

Answer

The title block is a standardized section of a drawing that identifies the project, drawing number, revision level, date, and who approved the drawing.

Question 4

When a BGE blueprint shows a gas service line connecting to a residential meter, where is the 'service termination point' typically located?

Accepted Answer

At the outlet side of the meter

Answer

BGE's responsibility typically ends at the outlet of the meter, after which the customer's piping begins.

Question 5

A blueprint legend shows a triangle symbol labeled 'CP Test Station.' What does this device do?

Accepted Answer

Provides access points to measure cathodic protection voltage on the pipeline

Answer

Cathodic protection test stations allow technicians to measure electrical potential on buried pipelines to verify corrosion protection is functioning.

(BGE) Baltimore Gas and Electric Practice Test

(BGE) Baltimore Gas and Electric Practice Test

BGE Blueprint Reading & Interpretation 3