Apprenticeship Exam Blueprint Reading and Technical Drawings 2 — Questions and Answers
Question 1: What symbol is commonly used on electrical blueprints to indicate a duplex outlet?
- A circle with two parallel lines (Correct answer)
- A triangle pointing right
- A square with an X
- A diamond shape
Correct answer: A circle with two parallel lines
A duplex outlet is typically shown as a circle with two parallel lines on electrical floor plan drawings.
Question 2: On a plumbing blueprint, what does the abbreviation 'CW' typically stand for?
- Cold Water (Correct answer)
- Capped Waste
- Concrete Wall
- Circuit Wire
Correct answer: Cold Water
CW on plumbing drawings stands for Cold Water, identifying cold water supply lines.
Question 3: What is a 'legend' on a blueprint?
- A key that explains symbols, abbreviations, and line types used in the drawing (Correct answer)
- A list of materials and their costs
- The signature of the architect
- A table of load-bearing capacities
Correct answer: A key that explains symbols, abbreviations, and line types used in the drawing
A legend (or symbol key) identifies what each symbol, line type, and abbreviation means in that set of drawings.
Question 4: On a structural drawing, what does a 'W8×31' designation refer to?
- A wide-flange steel beam 8 inches deep weighing 31 pounds per linear foot (Correct answer)
- A wall section 8 inches thick with a 31 kip load
- An 8-foot wide beam with 31 square inches of cross-section
- Wire gauge 8, 31 strand cable
Correct answer: A wide-flange steel beam 8 inches deep weighing 31 pounds per linear foot
W8×31 denotes a wide-flange (W-shape) steel beam with a nominal depth of 8 inches and a weight of 31 pounds per linear foot.
Question 5: What does 'RCP' stand for on a set of architectural drawings?
- Reflected Ceiling Plan (Correct answer)
- Reinforced Concrete Pipe
- Rough Ceiling Panel
- Right Corner Post
Correct answer: Reflected Ceiling Plan
RCP stands for Reflected Ceiling Plan, which shows ceiling features, lighting, and HVAC registers as if reflected onto the floor.
Question 6: What does a cloud symbol drawn around a revision on a blueprint indicate?
- A change made since the previous version of the drawing (Correct answer)
- A hazardous area on the job site
- A section requiring special approval
- An unresolved design question
Correct answer: A change made since the previous version of the drawing
Revision clouds mark areas of a drawing that have been changed from the previous issued version, helping tradespeople identify updates.
Apprenticeship Exam Blueprint Reading and Technical Drawings 2
What symbol is commonly used on electrical blueprints to indicate a duplex outlet?