WITH RATIONALES
Exam coverage
• Utility locating identifies existing facilities before excavation
• Excavation safety considers soil access utilities and protective systems
• Trenching and shoring protect workers from cave-ins
• Pipe installation requires alignment grade jointing and support
• Bedding supports pipe and helps maintain grade
• Backfill protects utilities and supports restored surfaces
• Utility crossings require coordination and protection of existing services
• Dewatering controls groundwater and accumulated water
• Restoration returns disturbed surfaces to required condition
• Quality control uses inspections measurements tests and records
,1. Which choice correctly identifies the main reason that utility locating identifies
existing facilities before excavation Which answer best applies the underlying
underground utility construction principle in this situation?
A. Pipe installation requires alignment grade jointing and support.
B. Utility locating identifies existing facilities before excavation.
C. Trenching and shoring protect workers from cave-ins.
D. Excavation safety considers soil access utilities and protective systems.
Correct answer: B
Rationale: The correct choice is supported because utility locating identifies existing facilities
before excavation. The other options describe related concepts but do not directly address the
principle tested in this question.
2. When evaluating this situation, which statement best applies because excavation
safety considers soil access utilities and protective systems Which answer best applies
the underlying underground utility construction principle in this situation?
A. Pipe installation requires alignment grade jointing and support.
B. Trenching and shoring protect workers from cave-ins.
C. Bedding supports pipe and helps maintain grade.
D. Excavation safety considers soil access utilities and protective systems.
Correct answer: D
,Rationale: The correct choice is supported because excavation safety considers soil access
utilities and protective systems. The other options describe related concepts but do not directly
address the principle tested in this question.
3. Which response best demonstrates understanding of how trenching and shoring
protect workers from cave-ins Which answer best applies the underlying underground
utility construction principle in this situation?
A. Pipe installation requires alignment grade jointing and support.
B. Backfill protects utilities and supports restored surfaces.
C. Trenching and shoring protect workers from cave-ins.
D. Bedding supports pipe and helps maintain grade.
Correct answer: C
Rationale: The correct choice is supported because trenching and shoring protect workers
from cave-ins. The other options describe related concepts but do not directly address the
principle tested in this question.
4. An inspector is reviewing the following issue; which explanation is most accurate
because pipe installation requires alignment grade jointing and support Which answer
best applies the underlying underground utility construction principle in this situation?
A. Bedding supports pipe and helps maintain grade.
B. Pipe installation requires alignment grade jointing and support.
C. Utility crossings require coordination and protection of existing services.
, D. Backfill protects utilities and supports restored surfaces.
Correct answer: B
Rationale: The correct choice is supported because pipe installation requires alignment grade
jointing and support. The other options describe related concepts but do not directly address
the principle tested in this question.
5. Which option best describes the relationship between the requirement and the result
when bedding supports pipe and helps maintain grade Which answer best applies the
underlying underground utility construction principle in this situation?
A. Backfill protects utilities and supports restored surfaces.
B. Bedding supports pipe and helps maintain grade.
C. Utility crossings require coordination and protection of existing services.
D. Dewatering controls groundwater and accumulated water.
Correct answer: B
Rationale: The correct choice is supported because bedding supports pipe and helps maintain
grade. The other options describe related concepts but do not directly address the principle
tested in this question.
6. A technician must decide how to proceed; which statement provides the soundest
basis because backfill protects utilities and supports restored surfaces Which answer
best applies the underlying underground utility construction principle in this situation?
A. Utility crossings require coordination and protection of existing services.