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VIRGINIA HEAVY HIGHWAY BATCH 1 QUESTIONS WITH DETAILED VERIFIED ANSWERS

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VIRGINIA HEAVY HIGHWAY BATCH 1 QUESTIONS WITH DETAILED VERIFIED ANSWERSVIRGINIA HEAVY HIGHWAY BATCH 1 QUESTIONS WITH DETAILED VERIFIED ANSWERS

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VIRGINIA HEAVY HIGHWAY BATCH 1
QUESTIONS WITH DETAILED VERIFIED
ANSWERS
What lay of cable is less likely to kink and is easier to handle Ans:
Regular Lay

What lay of cable has increased resistance to abrasion Ans: Lang lay

________ is down stream and _________ is upstream Ans:
Backpressure is down stream and backsiphon is upstream

What is used to prevent water from flowing back into a main Ans:
Backflow preventer

Rebar placement is typically what multiple of the thickness Ans: 3

This is used to slow the water speed and improve control Ans: Rip Rap

Ductile Iron is also referred to as Ans: Cast

Before excavating, what should be done about the unmarked utilities?
Ans: Contact notification center, marking by color, then dig

What is the minimum compacted soil around a communication line Ans:
12"

What is the minimum space utilized (width) of a 24" pipe in a ground
Ans: 12" + 24" + 12" = 48"

What is the minimum required burial distance from the top of a rail to an
underground conduit system? Ans: 5.5 feet

What is the minimum dimension of a circular manhole? Ans: 26"

What is the minimum size of a rectangular manhole lid? Ans:
26"xwhatever

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