Download Putnam County UNDERGROUND UTILITIES Exam and more Exams Technology in PDF only on Docsity!
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Question 1. What is the primary function of a performance bond in underground utility contracting? A) To insure equipment B) To guarantee job completion C) To pay employee wages D) To cover legal disputes Answer: B Explanation: A performance bond guarantees that the contractor will complete the project as per the contract terms, protecting the project owner. Question 2. Which business structure offers liability protection to its owners in Florida? A) Sole proprietorship B) General partnership C) Corporation D) Joint venture Answer: C Explanation: A corporation is a separate legal entity, providing liability protection to its shareholders.
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Question 3. What is the first step before beginning any excavation or trenching work in Florida? A) Renting equipment B) Calling 811 (Sunshine State One-Call) C) Hiring laborers D) Ordering materials Answer: B Explanation: Calling 811 is required to locate and mark existing underground utilities, ensuring safe excavation. Question 4. Which document outlines the specific terms, scope, and payment for a construction project? A) Lien waiver B) Change order C) Contract D) Invoice Answer: C Explanation: A contract details the agreement between parties, including scope, terms, and conditions. Question 5. What is the main purpose of backfilling a trench?
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B) Balance sheet C) Cash flow statement D) Bid estimate Answer: B Explanation: The balance sheet provides a snapshot of assets, liabilities, and owner’s equity at a specific date. Question 8. What is the minimum OSHA trench depth that requires a protective system? A) 1 foot B) 2 feet C) 3 feet D) 5 feet Answer: D Explanation: OSHA requires protective systems for trenches 5 feet or deeper unless the excavation is made entirely in stable rock. Question 9. Which method is used to install underground utilities without open trenching? A) Sloping B) Horizontal directional drilling (HDD)
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C) Benching D) Shoring Answer: B Explanation: HDD is a trenchless method for installing pipes and conduits underground without continuous open trenches. Question 10. Who must conduct daily inspections of trenches on a job site? A) Any laborer B) Project manager C) Competent person D) Equipment operator Answer: C Explanation: OSHA requires a competent person to inspect excavations daily and after any hazard-increasing event. Question 11. What is the primary risk if existing utilities are not properly located before excavation? A) Project delays B) Equipment malfunction C) Utility strikes causing injury or service outages D) Increased material costs
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Explanation: The Occupational Safety and Health Administration (OSHA) sets and enforces safety standards for trenching and excavation. Question 14. What is the purpose of a bid estimate in underground utility contracting? A) To determine the project profit margin B) To secure a loan C) To provide a detailed cost breakdown for the project D) To order materials Answer: C Explanation: A bid estimate calculates all project costs to prepare a competitive and accurate proposal. Question 15. Which of the following is a common reason for a change order on an underground utility project? A) Early project completion B) Changing weather C) Unforeseen site conditions D) Prompt payment Answer: C
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Explanation: Change orders often result from unforeseen site conditions requiring modifications to the original contract. Question 16. What is the correct slope ratio for sloping Type C soil in a trench according to OSHA? A) 1/2:1 (horizontal:vertical) B) 1: C) 1.5: D) 2: Answer: C Explanation: For Type C soil, OSHA requires a slope of 1.5 horizontal to 1 vertical. Question 17. Which valve type is commonly used for shutting off water in underground main lines? A) Butterfly valve B) Ball valve C) Gate valve D) Check valve Answer: C Explanation: Gate valves are typically used for isolation in water distribution systems.
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Question 20. What is the purpose of a lien law in Florida construction? A) To control project costs B) To allow contractors/suppliers to secure payment through a claim on the property C) To regulate insurance requirements D) To mandate safety training Answer: B Explanation: Lien laws give contractors and suppliers the right to place a claim on property for unpaid work or materials. Question 21. Which type of business organization is owned by one individual and has no legal distinction from its owner? A) Limited liability company B) Corporation C) Sole proprietorship D) Partnership Answer: C Explanation: A sole proprietorship is owned by one person, who is personally liable for all business debts.
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Question 22. What is the recommended minimum cover for water mains installed beneath roadways in Florida? A) 6 inches B) 12 inches C) 24 inches D) 36 inches Answer: D Explanation: A minimum cover of 36 inches is recommended for water mains beneath roadways to prevent damage from surface loads. Question 23. Which equipment is used to compact backfill material in a trench? A) Excavator B) Plate compactor C) Skid steer loader D) Trench box Answer: B Explanation: Plate compactors or tampers are used to compact backfill and reduce settlement. Question 24. What is the proper sequence for installing a sanitary sewer pipeline? A) Test, backfill, lay pipe
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D) List of employees Answer: B Explanation: The income statement details revenues, expenses, and resulting profit or loss for a specific period. Question 27. Which of these is NOT a component of a typical bid estimate? A) Material costs B) Labor costs C) Client’s credit history D) Equipment costs Answer: C Explanation: A client’s credit history is not included in a bid estimate; it covers materials, labor, and equipment. Question 28. What is the minimum safe distance for spoil piles from the edge of an open trench? A) 12 inches B) 2 feet C) 4 feet D) 6 feet Answer: B
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Explanation: Spoil piles must be at least 2 feet from the trench edge to prevent cave-ins. Question 29. Which permit is likely required for a large excavation project in Putnam County, Florida? A) Building permit B) Excavation permit C) Food service permit D) Environmental permit Answer: B Explanation: An excavation permit is typically required for major earthmoving or trenching projects. Question 30. What is the purpose of a payment bond? A) To insure against weather delays B) To guarantee subcontractors and suppliers are paid C) To provide health insurance D) To pay for extra materials Answer: B Explanation: A payment bond ensures that all laborers, subcontractors, and suppliers are paid, even if the contractor defaults.
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Question 33. What is the recommended practice for dealing with groundwater in an excavation? A) Ignore it B) Pump it out before and during excavation C) Use sandbags only D) Wait for it to evaporate Answer: B Explanation: Groundwater should be managed by pumping to keep the excavation dry and safe. Question 34. Which of the following is an acceptable pipe material for force mains? A) Concrete B) PVC C) Cast iron D) Galvanized steel Answer: B Explanation: PVC is commonly used for force mains due to its corrosion resistance and pressure rating.
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Question 35. Who is responsible for providing PPE (Personal Protective Equipment) on a job site? A) Each individual worker B) The property owner C) The employer/contractor D) Local government Answer: C Explanation: Employers are required to provide necessary PPE to workers as per OSHA regulations. Question 36. What does a change order typically require? A) Verbal agreement only B) Written documentation and approval by all parties C) Approval from OSHA D) Immediate action without documentation Answer: B Explanation: All change orders must be documented in writing and approved by the relevant parties. Question 37. Which is NOT a common method for preventing trench cave-ins? A) Sloping
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D) Measure flow Answer: B Explanation: Check valves prevent backflow by allowing flow in only one direction. Question 40. Which soil type is considered most stable for trenching according to OSHA? A) Type A B) Type B C) Type C D) Type D Answer: A Explanation: Type A soil is the most stable and cohesive, requiring less protective measures. Question 41. What does “compaction” mean in the context of backfilling a trench? A) Increasing the trench width B) Reducing the volume of soil by pressing it together C) Adding water to the soil D) Mixing different soil types Answer: B
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Explanation: Compaction reduces air gaps, increasing soil density and stability after backfilling. Question 42. What is the main difference between a bid and a proposal in construction contracting? A) A bid is verbal; a proposal is written B) A bid is a price offer only; a proposal includes project approach and qualifications C) A bid is for large jobs; a proposal is for small jobs D) A bid always wins the project Answer: B Explanation: Bids focus on pricing, while proposals include qualifications, methods, and approach. Question 43. What is the typical required slope for gravity sanitary sewer lines? A) 0% B) 0.5% to 2% C) 5% to 10% D) 20% Answer: B Explanation: Gravity sewer lines require a slope of 0.5% to 2% for proper flow.
