VIRGINIA HEAVY HIGHWAY BATCH 1 –
PRACTICE QUESTIONS WITH 100% CORRECT
ANSWERS (2025–2026)
1. What lay of cable is less likely to kink and is easier to handle: Regular Lay
2. What lay of cable has increased resistance to abrasion: Lang lay
3. is down stream and is upstream: Backpressure is down stream and
backsiphon is upstream
4. What is used to prevent water from flowing back into a main: Backflow preventer
5. Rebar placement is typically what multiple of the thickness: 3
6. This is used to slow the water speed and improve control: Rip Rap
7. Ductile Iron is also referred to as: Cast
8. Before excavating, what should be done about the unmarked utilities?: Contact
notification center, marking by color, then dig
9. What is the minimum compacted soil around a communication line: 12"
10. What is the minimum space utilized (width) of a 24" pipe in a ground: 12" + 24"
+ 12" = 48"
11. What is the minimum required burial distance from the top of a rail to an
underground conduit system?: 5.5 feet
12. What is the minimum dimension of a circular manhole?: 26"
13. What is the minimum size of a rectangular manhole lid?: 26"xwhatever
14. What is the clearance between a 7500 volt phase to phase cable and a
communication cable in a joint uplift manhole?: 6 inches
15. What ASTM standard is used for piping, pipe fitting and tubing of a low-pres-
sure storage tank: ASTM A333
16. What is the maximum distance an employee can be from an egress in a
trench?: 25'. Note that means ladders can be 50' apart
17. How much can a shoring box be undercut? (maximum): 2 feet
18. What method is not an approved method?: Sand cone
19. The inner cone of a neutral welding flame has what temperature range?: -
5500-6000F
PRACTICE QUESTIONS WITH 100% CORRECT
ANSWERS (2025–2026)
1. What lay of cable is less likely to kink and is easier to handle: Regular Lay
2. What lay of cable has increased resistance to abrasion: Lang lay
3. is down stream and is upstream: Backpressure is down stream and
backsiphon is upstream
4. What is used to prevent water from flowing back into a main: Backflow preventer
5. Rebar placement is typically what multiple of the thickness: 3
6. This is used to slow the water speed and improve control: Rip Rap
7. Ductile Iron is also referred to as: Cast
8. Before excavating, what should be done about the unmarked utilities?: Contact
notification center, marking by color, then dig
9. What is the minimum compacted soil around a communication line: 12"
10. What is the minimum space utilized (width) of a 24" pipe in a ground: 12" + 24"
+ 12" = 48"
11. What is the minimum required burial distance from the top of a rail to an
underground conduit system?: 5.5 feet
12. What is the minimum dimension of a circular manhole?: 26"
13. What is the minimum size of a rectangular manhole lid?: 26"xwhatever
14. What is the clearance between a 7500 volt phase to phase cable and a
communication cable in a joint uplift manhole?: 6 inches
15. What ASTM standard is used for piping, pipe fitting and tubing of a low-pres-
sure storage tank: ASTM A333
16. What is the maximum distance an employee can be from an egress in a
trench?: 25'. Note that means ladders can be 50' apart
17. How much can a shoring box be undercut? (maximum): 2 feet
18. What method is not an approved method?: Sand cone
19. The inner cone of a neutral welding flame has what temperature range?: -
5500-6000F
