Virginia Heavy Highway Batch 1 Exam Questions With New Update Solutions A+ Pass

Virginia Heavy Highway Batch 1 EXAM QUESTIONS WITH NEW UPDATE SOLUTIONS A+ PASS What lay of cable is less likely to kink and is easier to handle - Answer- Regular Lay What lay of cable has increased resistance to abrasion - Answer- Lang lay ________ is down stream and _________ is upstream - Answer- Backpressure is down stream and backsiphon is upstream What is used to prevent water from flowing back into a main - Answer- Backflow preventer Rebar placement is typically what multiple of the thickness - Answer- 3 This is used to slow the water speed and improve control - Answer- Rip Rap Ductile Iron is also referred to as - Answer- Cast Before excavating, what should be done about the unmarked utilities? - Answer- Contact notification center, marking by color, then dig What is the minimum compacted soil around a communication line - Answer- 12" What is the minimum space utilized (width) of a 24" pipe in a ground - Answer- 12" + 24" + 12" = 48" What is the minimum required burial distance from the top of a rail to an underground conduit system? - Answer- 5.5 feet What is the minimum dimension of a circular manhole? - Answer- 26" What is the minimum size of a rectangular manhole lid? - Answer- 26"xwhatever What is the clearance between a 7500 volt phase to phase cable and a communication cable in a joint uplift manhole? - Answer- 6 inches What ASTM standard is used for piping, pipe fitting and tubing of a low-pressure storage tank - Answer- ASTM A333 What is the maximum distance an employee can be from an egress in a trench? - Answer- 25'. Note that means ladders can be 50' apart How much can a shoring box be undercut? (maximum) - Answer- 2 feet What method is not an approved method? - Answer- Sand cone The inner cone of a neutral welding flame has what temperature range? - Answer- F How far should oxy acetanne and gas be stored apart - Answer- 20 feet How much bearing upon a foundation should a concrete side form have? - Answer- Full bearing When concrete is vibrated, it ________ - Answer- Removes air and increases slump Concrete and acidity something something - Answer- less permeability A diesel hammer is least effective in - Answer- soft or muddy soils How do you stop a bulldozer - Answer- Press down on the decelerator What is the best grip on an unbalanced lift - Answer- Choker How do you store beams at site - Answer- Laid on their side or in the orientation in which they were shipped What should be checked before moving a load with a crane - Answer- The destination area should be checked for sufficient clearance and floor strength The depth of excavation that requires a ladder is - Answer- 4 feet When securing a low pressure tank fitting, what grade bolt should be used - Answer- Grade 8 What is not considered a part of the tank - Answer- structural beam How level does a concrete pad need to be under a tank - Answer- +/- 1/8" What size berm is needed on a tank pad - Answer- 5 foot What is the maximum punitive damages assessed for excavating without having the utilities marked? - Answer- $10,000 Asphault should be rolled? - Answer- On the hot side with a small overlap on the cold side