CPI Blueprints, Schematics, & Specifications 2 — Questions and Answers
Question 1: On a wiring schematic, a dashed line between two components typically indicates what type of connection?
- A high-voltage power feed
- A mechanical or shielded connection (Correct answer)
- A wireless signal path
- A grounding conductor
Correct answer: A mechanical or shielded connection
Dashed lines on schematics commonly represent mechanical linkages, shielded cables, or connections that are not direct electrical conductors.
Question 2: A specification document lists materials as 'approved equals.' What does this mean for the installer?
- Only the exact specified brand may be used
- Substitutions must be pre-approved by the engineer or architect (Correct answer)
- Any similar product can be used without approval
- The installer must select the cheapest equivalent
Correct answer: Substitutions must be pre-approved by the engineer or architect
'Approved equals' means substitutions are permitted only if they are reviewed and accepted by the project engineer or architect before installation.
Question 3: Which section of a construction specification set defines the administrative requirements, bidding procedures, and general conditions?
- Division 01 — General Requirements
- Division 03 — Concrete
- Division 26 — Electrical
- Division 00 — Procurement and Contracting (Correct answer)
Correct answer: Division 00 — Procurement and Contracting
Division 00 covers procurement and contracting requirements including bidding documents, agreements, and bonds.
Question 4: On a blueprint, a 'cloud' or bubble drawn around a section of the drawing indicates:
- A hazardous area requiring PPE
- A revision or change made since the last issued drawing (Correct answer)
- A detail that will be enlarged on another sheet
- An area excluded from the project scope
Correct answer: A revision or change made since the last issued drawing
Revision clouds are used to highlight areas of a drawing that have been altered in the latest revision, alerting reviewers to changes.
Question 5: What does 'NTS' written next to a dimension on a drawing mean?
- Not To Scale (Correct answer)
- No Thread Specified
- Neutral Terminal Side
- Next Task Step
Correct answer: Not To Scale
NTS stands for 'Not To Scale,' warning the reader that the drawn proportions do not accurately represent real-world dimensions.
Question 6: A floor plan shows a door swing represented by a quarter-circle arc. What information does this arc convey to the installer?
- The door's fire rating
- The clearance space the door requires when opened (Correct answer)
- The door's material type
- The hinge side of the door frame
Correct answer: The clearance space the door requires when opened
The quarter-circle arc shows the path the door travels when swinging open, indicating the clearance zone that must remain unobstructed.
Question 7: In a reflected ceiling plan (RCP), what does the drawing represent?
- A view looking down at the floor from above
- A view of the ceiling as if reflected in a mirror on the floor (Correct answer)
- A cross-section through the ceiling joists
- An elevation view of the exterior soffit
Correct answer: A view of the ceiling as if reflected in a mirror on the floor
An RCP shows the ceiling layout as it would appear if you placed a mirror on the floor and looked at the reflection, maintaining the same orientation as the floor plan.
CPI Blueprints, Schematics, & Specifications 2
On a wiring schematic, a dashed line between two components typically indicates what type of connection?