BGE Blueprint Reading & Interpretation 2

Question 1

On a gas distribution blueprint, a dashed line typically represents which of the following?

Accepted Answer

An underground or hidden line

Answer

Dashed lines on utility blueprints indicate features that are hidden from view, such as underground pipes or conduits.

Question 2

What does the abbreviation 'ROW' stand for on a BGE pipeline blueprint?

Accepted Answer

Right-of-Way

Answer

ROW stands for Right-of-Way, designating the corridor of land where BGE has legal authority to install and maintain utility infrastructure.

Question 3

A blueprint shows a gas main crossing a waterway with a notation 'H.D.D.' What does this indicate?

Accepted Answer

Horizontal Directional Drill

Answer

H.D.D. stands for Horizontal Directional Drill, a trenchless installation method used to bore under obstacles like rivers or roads.

Question 4

When reading an isometric drawing of a gas piping system, what does it show that a standard plan view does not?

Accepted Answer

Three-dimensional spatial relationships of pipes

Answer

Isometric drawings represent a 3D view of piping systems, showing elevation changes and directional turns that a flat plan view cannot convey.

Question 5

On a BGE electrical distribution drawing, what does the symbol of a circle with an 'X' inside typically represent?

Accepted Answer

A fuse or cutout

Answer

A circle with an X inside is a common symbol for a fuse or fused cutout on electrical distribution single-line diagrams.

(BGE) Baltimore Gas and Electric Practice Test