Download PrepIQ Nevada NV C‑3A Carpentry Repairs Ultimate Exam and more Exams Technology in PDF only on Docsity!
Carpentry Repairs Ultimate
Exam
Question 1. Which OSHA standard specifically governs fall protection requirements for construction workers? A) 29 CFR 1910 B) 29 CFR 1926 Subpart M C) 29 CFR 1915 D) 29 CFR 1928 Answer: B Explanation: OSHA 29 CFR 1926 Subpart M outlines fall protection requirements for construction activities, including height thresholds and equipment specifications. Question 2. When selecting personal protective equipment (PPE) for work on a roof with a 6-ft fall risk, which combination is mandatory? A) Hard hat, safety glasses, steel-toe boots B) Hard hat, hearing protectors, gloves C) Hard hat, fall arrest harness, eye protection D) Hard hat, respiratory mask, knee pads Answer: C Explanation: For fall hazards, a hard hat, eye protection, and a fall arrest system (harness) are required by OSHA. Question 3. The most common cause of table-saw injuries is: A) Blade guard removal B) Incorrect blade height C) Using a push stick D) Cutting hardwood Answer: A Explanation: Removing or disabling the blade guard eliminates a critical safety device, increasing the risk of severe injuries.
Carpentry Repairs Ultimate
Exam
Question 4. Which of the following is NOT a recommended maintenance practice for pneumatic nailers? A) Regularly lubricating the air valve B) Using oil-free compressed air C) Replacing the air filter annually D) Operating at pressures above the manufacturer’s maximum rating Answer: D Explanation: Exceeding the rated pressure can cause premature wear or failure; all other options are proper maintenance steps. Question 5. The maximum load for a standard 4-ft aluminum ladder used as a straight ladder is: A) 200 lb B) 250 lb C) 300 lb D) 375 lb Answer: C Explanation: OSHA classifies a standard 4-ft aluminum ladder as a Type II ladder with a maximum load of 300 lb (including user and tools). Question 6. Before climbing a scaffold, the inspector must verify that the scaffold is: A) Painted white for visibility B) Equipped with a guardrail on all open sides above 10 ft C) Installed on a concrete slab only D) Anchored to a single point Answer: B Explanation: Guardrails are required on all open sides of scaffolds higher than 10 ft to protect workers from falls.
Carpentry Repairs Ultimate
Exam
Question 10. Which lumber size is most commonly used for interior non-load-bearing wall studs in residential construction? A) 2 × 6 B) 2 × 8 C) 2 × 4 D) 2 × 10 Answer: C Explanation: 2 × 4 studs are standard for interior partition walls that do not carry roof or floor loads. Question 11. When framing a load-bearing wall, the top plate must be: A) Staggered with the bottom plate B) Aligned with the ground floor only C) Double-layered (double top plate) for added strength D) Made of 1 × 12 lumber Answer: C Explanation: A double top plate distributes loads and provides a continuous bearing surface for the next floor or roof. Question 12. The purpose of a header above a window opening is to: A) Provide a decorative trim B) Transfer loads from above around the opening to the studs on each side C) Increase the interior wall thickness D) Hold the window glass in place Answer: B Explanation: Headers act as beams that carry and redistribute loads around openings, preserving structural integrity.
Carpentry Repairs Ultimate
Exam
Question 13. In roof framing, a “common rafter” is defined as a rafter that: A) Extends from ridge to wall plate at a 45° angle B) Runs from ridge to wall plate without intersecting another rafter C) Is used only on hip roofs D) Supports only the roof decking, not the sheathing Answer: B Explanation: A common rafter runs from the ridge to the wall plate and does not intersect other rafters; it is the primary framing member for most roof slopes. Question 14. To calculate the rise of a 12/12 pitch roof, the rise over a 12-in horizontal run is: A) 6 in B) 12 in C) 24 in D) 18 in Answer: B Explanation: A 12/12 pitch means a 12-in rise for every 12-in run – a 45° slope. Question 15. When installing engineered wood trusses, the temporary bracing required by BCSI must remain in place for at least: A) 24 hours after placement of the roof deck B) Until the roof deck is fully installed and nailed C) 48 hours after the first load is applied D) Until the trusses are painted Answer: B Explanation: Temporary bracing must stay until the roof deck is installed and secured, providing lateral stability.
Carpentry Repairs Ultimate
Exam
Question 19. The term “blowout” in concrete formwork refers to: A) The intentional removal of forms after curing B) The failure of a form panel due to excessive pressure, causing concrete to escape C) The cracking of concrete due to shrinkage D) The expansion of concrete during curing Answer: B Explanation: A blowout occurs when formwork cannot resist pressure and ruptures, allowing concrete to escape. Question 20. For a driveway slab with a 4 % slope, the elevation change over a 20 - ft run is: A) 0.8 ft B) 1.0 ft C) 1.2 ft D) 0.4 ft Answer: A Explanation: 4 % of 20 ft (240 in) equals 9.6 in, which is 0.8 ft. Question 21. In exterior door installation, the “shimming” process primarily ensures: A) The door is painted correctly B) The door is level, plumb, and operates smoothly within the rough opening C) The door frame matches the interior trim D) The door hardware is recessed Answer: B Explanation: Shims adjust the door frame to be square, level, and plumb, facilitating proper operation.
Carpentry Repairs Ultimate
Exam
Question 22. Which flashing material is most commonly used for window installations in residential construction? A) Copper B) Lead sheet C) Aluminum D) PVC Answer: C Explanation: Aluminum flashing is lightweight, corrosion-resistant, and easy to bend, making it the standard for window flashings. Question 23. The purpose of a “drip edge” on a roof is to: A) Provide a decorative border for the roof deck B) Direct water away from the fascia and protect the sheathing C) Increase roof pitch for better drainage D) Secure the underlayment to the decking Answer: B Explanation: Drip edges channel water off the roof deck, preventing water infiltration behind the roofing material. Question 24. When installing vinyl siding, the recommended expansion gap at a vertical joint is: A) 1/8 in B) 1/4 in C) 1/2 in D) 3/4 in Answer: B Explanation: Vinyl siding expands and contracts; a 1/4 in gap accommodates movement while maintaining a weather-tight seal.
Carpentry Repairs Ultimate
Exam
Question 28. The minimum headroom clearance required by the IBC for a stairway is: A) 6 ft 8 in B) 7 ft C) 7 ft 6 in D) 8 ft Answer: A Explanation: The International Building Code mandates a minimum headroom of 6 ft 8 in measured vertically above the stair tread. Question 29. For a residential stair with a total rise of 108 in, the ideal number of risers using a 7-in rise per step is: A) 14 B) 15 C) 16 D) 17 Answer: B Explanation: 108 in ÷ 7 in ≈ 15.4, rounded to 15 risers to stay within the 7-in maximum rise. Question 30. In cabinet installation, the primary purpose of “shims” placed between the cabinet base and wall studs is to: A) Insulate the cabinet B) Prevent moisture absorption C) Level and plumb the cabinet for proper door operation D) Secure the cabinet to the floor Answer: C Explanation: Shims adjust the cabinet’s position to achieve level and plumb alignment, essential for door and drawer function.
Carpentry Repairs Ultimate
Exam
Question 31. When patching a small hole in drywall, the recommended sequence is: A) Apply joint compound, sand, then tape B) Tape the hole, apply joint compound, sand, then finish C) Sand the hole, then apply paint D) Install a new sheet of drywall over the hole Answer: B Explanation: Tape first to hold the compound, then apply joint compound, sand smooth, and finish with paint. Question 32. The “rise” of a stair is measured from: A) The top of one tread to the top of the next tread B) The bottom of the tread to the top of the riser C) The horizontal distance between treads D) The vertical distance from the floor to the handrail Answer: A Explanation: Rise is the vertical distance between the top surfaces of two consecutive treads. Question 33. In blueprint reading, a dashed line on a plan typically represents: A) A hidden or concealed element B) A structural beam C) A finished surface D) A fire-rated wall Answer: A Explanation: Dashed lines indicate hidden or obscured components such as concealed ducts or wiring.
Carpentry Repairs Ultimate
Exam
Explanation: Openings reduce the number of studs needed because studs are omitted where doors and windows are installed. Question 37. The correct term for the horizontal member that caps the ends of floor joists at the exterior wall is: A) Rim joist (or band joist) B) Header C) Ledger board D) Sill plate Answer: A Explanation: Rim or band joists close off the ends of joists and provide bearing for the floor system. Question 38. In roof sheathing, the minimum recommended nail spacing along the edges is: A) 6 in on center B) 8 in on center C) 10 in on center D) 12 in on center Answer: B Explanation: Edge nails should be placed at 8 in intervals to secure the sheathing against wind uplift. Question 39. The primary purpose of “blocking” installed between joists is to: A) Provide a decorative element B) Support fixtures, prevent joist rotation, and stiffen the floor system C) Increase the floor height D) Reduce the need for insulation Answer: B
Carpentry Repairs Ultimate
Exam
Explanation: Blocking gives solid points for fixtures, limits joist movement, and adds rigidity. Question 40. When installing a 2-by-4 stud, the correct method for cutting a notch to accommodate a pipe is: A) Cut the notch from the bottom edge only B) Remove the entire stud and replace it with a larger piece C) Cut a “rabbit” notch that does not exceed one-third the stud depth D) Drill a round hole through the stud Answer: C Explanation: A “rabbit” (or bored) notch must not exceed one-third the depth of the stud to preserve structural integrity. Question 41. Which of the following is a required feature of a “hard hat” used on a construction site? A) Built-in ear protection B) A suspension system that absorbs impact C) A reflective strip on the front D) A built-in flashlight Answer: B Explanation: OSHA requires hard hats to have a suspension system that distributes impact forces away from the skull. Question 42. The term “deflection” in floor joist design refers to: A) The amount of moisture absorbed by the wood B) The vertical displacement of a joist under load C) The angle at which a joist is installed D) The horizontal movement of a joist during installation Answer: B
Carpentry Repairs Ultimate
Exam
Explanation: A starter strip is usually one inch taller than the siding panel to provide a secure base and proper overlap. Question 46. The correct term for a “pre-finished” wood siding that is installed with a hidden fastener system is: A) Clapboard B) Shake C) Fiber-cement board D) Vinyl Answer: A Explanation: Pre-finished clapboard often utilizes hidden (concealed) fasteners for a clean appearance. Question 47. In interior finish carpentry, a “casing” is used primarily to: A) Cover the gap between a door slab and the jamb B) Provide a decorative edge on countertops C) Reinforce the wall studs D) Attach baseboards to the wall Answer: A Explanation: Casing frames a door or window opening, covering the joint between the slab and the jamb. Question 48. The minimum thickness for a drywall sheet used on interior walls in a residential home is: A) 1/4 in B) 3/8 in C) 1/2 in D) 5/8 in Answer: C
Carpentry Repairs Ultimate
Exam
Explanation: 1/2-in drywall is the standard for interior walls, providing fire rating and durability. Question 49. When calculating the number of 4 × 8 plywood sheets needed for a roof deck of 1,200 sq ft, the correct method is: A) Divide 1,200 by 32 (area of one sheet) and add 10 % for waste B) Divide 1,200 by 16 and add 5 % for waste C) Multiply 1,200 by 0.5 and add 15 % for waste D) Divide 1,200 by 64 and add 20 % for waste Answer: A Explanation: Each 4 × 8 sheet covers 32 sq ft. 1,200 ÷ 32 = 37.5 sheets; adding 10 % waste yields ~41 sheets. Question 50. The “bird’s-eye” pattern on a concrete form surface is used to: A) Increase the surface area for better bonding with finishing materials B) Provide a decorative texture for exposed concrete C) Reduce the amount of concrete needed D) Accelerate curing time Answer: B Explanation: A bird’s-eye pattern creates a decorative, exposed-aggregate finish on concrete surfaces. Question 51. What is the recommended minimum distance between a window flashing edge and the exterior sheathing? A) 0 in (directly on sheathing) B) 1/8 in C) 1/4 in D) 1/2 in Answer: C
Carpentry Repairs Ultimate
Exam
Question 55. When using a pneumatic nail gun, the recommended practice to avoid “double-firing” is to: A) Keep the trigger depressed continuously B) Use a slower air pressure setting C) Release the trigger between each nail strike D) Apply a lubricant to the nail tip Answer: C Explanation: Releasing the trigger between nails prevents the gun from firing multiple nails unintentionally. Question 56. The maximum allowable spacing for joist hangers on a 2 × 10 joist supporting a residential floor is: A) 4 ft on center B) 6 ft on center C) 8 ft on center D) 10 ft on center Answer: B Explanation: Joist hangers should be spaced no more than 6 ft apart to provide adequate support. Question 57. In a typical residential wall, the “top plate” rests on: A) The foundation wall B) The floor joists C) The studs D) The ceiling joists (or ridge beam) Answer: D Explanation: The top plate sits on the ceiling joists or ridge beam, transferring loads upward.
Carpentry Repairs Ultimate
Exam
Question 58. The correct term for a “load-bearing” wall is: A) Partition wall B) Shear wall C) Bearing wall D) Curtain wall Answer: C Explanation: Bearing walls support vertical loads from floors and roofs, unlike non-load-bearing partition walls. Question 59. When measuring board footage for a 2 × 4 that is 8 ft long, the board footage is: A) 5.33 bf B) 6.00 bf C) 4.00 bf D) 7.00 bf Answer: C Explanation: Board footage = (thickness in inches × width in inches × length in feet) ÷ 144. For a 2 × 4 (2 in × 4 in) × 8 ft = 64 in³ ÷ 144 = 0.44 bf; however, industry simplifies to length × 0.5 = 8 ft × 0.5 = 4 bf. Question 60. The primary purpose of a “sill plate” in wood-frame construction is to: A) Provide a decorative base for interior walls B) Anchor the wall framing to the concrete foundation and resist lateral loads C) Act as a moisture barrier between the foundation and the studs D) Support the roof rafters directly Answer: B
