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Flashcards

Modern Masonry

Steven Hall North Carolina General Contractor's Exam North Carolina General Contractor's Exam English 92 cards

What does the symbol shown below represent?

Cards in this deck (92)

  1. 1What does the symbol shown below represent?RubbleWhat does the symbol shown below represent?
  2. 2In masonry work, what tool is used to make long horizontal joints?Sled runner jointer
  3. 3What does the symbol shown below represent?Dimension lumberWhat does the symbol shown below represent?
  4. 4What does the symbol shown below represent?SteelWhat does the symbol shown below represent?
  5. 5What does the symbol shown below represent?PlasterWhat does the symbol shown below represent?
  6. 6How many cubic feet of mortar are required for a single wythe brick wall that measures 200 sq feet, has 3/8" mortar joints and has 655 non-modular brick units per 100 square feet?11.6 cubic feet
  7. 7What type of brick is used in areas exposed to freezing, but not wet conditions?Type MW
  8. 8What Type of Brick should be used that will come into contact with ground water and freezing conditions?Type SW
  9. 9With masonry, what unit of measure is used in a modular grid system?4"
  10. 10What is the nominal size of a modular brick?4" X 2 2/3" X 8"
  11. 11What percentage of a brick must be solid for it to be considered solid?75%
  12. 12What is the white powder that forms in a masonry wall after exposure to moisture?Efflorescence
  13. 13What type of brick position is created when one brick is laid across two others?Header
  14. 14Five to Seven stretcher courses of brick with one header course describes which of the following types of bonds?Common or American
  15. 15What bond is a variation of the Common or American bond?The Running bond
  16. 16How many Header Course does the Common or American bond have?Five to Seven
  17. 17The Common or American bond has a course of _____________to provide structural bonding as well as a pattern.full-length headers
  18. 18Which of the brick patterns is called a Flemish Bond?AWhich of the brick patterns is called a Flemish Bond?
  19. 19Which of the brick patterns is called a Running Bond?BWhich of the brick patterns is called a Running Bond?
  20. 20Which of the brick patterns is called a English Bond?CWhich of the brick patterns is called a English Bond?
  21. 21When laying brick and all the vertical joints align, this is a:Stacked bond
  22. 22Which brick pattern is considered the weakest bond?Stacked bond
  23. 23The Common bond is also referred to as:The American bond
  24. 24Which of the brick patterns is called a Stack Bond?DWhich of the brick patterns is called a Stack Bond?
  25. 25The Block or Stack Bond is purely a _______.Pattern Bond
  26. 26What type of mortar joint is recommended in areas exposed to heavy rain and high winds?V-shaped or Concave mortar joints
  27. 27What type of joint is shown by figure #3 on the side of the masonry cross section?V-shaped jointWhat type of joint is shown by figure #3 on the side of the masonry cross section?
  28. 28What type of joint is shown by figure #1 on the side of the masonry cross section?Concave jointWhat type of joint is shown by figure #1 on the side of the masonry cross section?
  29. 29Which number indicates a concave/rodded joint?#1Which number indicates a concave/rodded joint?
  30. 30Which number indicates a weathered joint?#4Which number indicates a weathered joint?
  31. 31What type of joint is shown by figure #4 on the side of the masonry cross section?Weathered jointWhat type of joint is shown by figure #4 on the side of the masonry cross section?
  32. 32Which number indicates a raked joint?#7Which number indicates a raked joint?
  33. 33Which number indicates a struck joint?#5Which number indicates a struck joint?
  34. 34What type of joint is shown by figure #5 on the side of the masonry cross section?Trowel-struck jointWhat type of joint is shown by figure #5 on the side of the masonry cross section?
  35. 35What type of joint is shown by figure #6 on the side of the masonry cross section?Flush or Rough Cut jointWhat type of joint is shown by figure #6 on the side of the masonry cross section?
  36. 36What type of joint is shown by figure #7 on the side of the masonry cross section?Raked JointWhat type of joint is shown by figure #7 on the side of the masonry cross section?
  37. 37What type of facing tile is used when a high degree of mechanical perfection is required?FTX unglazed tile
  38. 38Which CMU has the least pounds per cubic foot of concrete?Pumice
  39. 39What is the highest strength aggregate in an 8 X 8 X 16 CMU?Sand and gravel
  40. 40What is the weight of an 8 x 8 x 16 Concrete Masonry Unit (CMU) made of sand and gravel?40 lbs
  41. 41When figuring nominal dimensions, what is the intended size of the mortar joint for concrete masonry units?3/8"
  42. 42What is the nominal size of an 8 inch stretcher block?8 X 8 X 16
  43. 43What is the advantage of a two core block CMU versus a three core block design?Lighter, reduced heat conductor and more space for conduit
  44. 44What is mortar mainly composed of?Portland cement
  45. 45A standard glass block mortar joint is how thick?1/4"
  46. 46Which of the following is not a type of masonry mortar?Type P
    (remember MaSoNwOrK)
  47. 47What is the best stone to protect against moisture on sills?Limestone
  48. 48What should you use to prevent moisture from entering the top of a masonry wall?Copings
  49. 49What type of lime is used in mortar?Type S hydrated
  50. 50What is the primary aggregate used in mortar?Sand
  51. 51To avoid hardening due to hydration, mortar should be used within what time span after mixing?2 1/2 hours
  52. 52What is added to mortar for compressive strength?Cement
  53. 53Typically, what is the most significant property of hardened mortar?Bond strength
  54. 54What type of mortar is best suited for use below grade?Type M
  55. 55What type of mortar is used for interior non-load bearing partitions where high strength is not needed?Type K
  56. 56What is filling voids in masonry with fresh mortar known as?Tuck Pointing
  57. 57Where wind speeds can reach speeds of 80 mph, what type of mortar is used in a cavity wall?Type S Mortar
  58. 58how many bricks and how many cubic feet of mortar will you need, per 100 sq ft, when using a 3/8’ mortar joint?655 brick and 5.8 cubic feet of mortar
    (Charts are used for estimating)
  59. 59The maximum height of grout lifts is usually:5'
  60. 60Concrete pours of how high can be consolidated by rodding or vibration?12"
  61. 61With masonry, what gauge wire is ordinarily used for continuous horizontal joint reinforcement?#8, #9, #10, & #11 gauge wire
  62. 62What is the closest an adjustable truss type brick tie should be from the edge of the brick?5/8"
  63. 63Masonry walls that intersect may be connected by what means?Strap anchor
  64. 64When sandblasting, what size nozzle should be used?1/4" Nozzle
  65. 65What tool is used to cut brick when the cut edge will be hidden by the mortar?Brick hammer
  66. 66When laying brick, what are the leads?The corners
  67. 67Which masonry joint provides the best moisture protection?Tooled Joints (Concave or V Joint)
  68. 68Wall ties in a brick masonry cavity wall should be placed what distance from either edge of the masonry unit?5/8" from the edge
  69. 69What is the best cleaning agent for brick?Hydrochloric or muriatic acid
  70. 70What is the recommended air pressure setting when sandblasting brick with a 1/4" nozzle?60 - 120 lbs of pressure
  71. 71What is a two-wythe wall allowing each wythe to react independently to stress known as?A cavity wall
  72. 72What is the most common cavity size of a two-wythe wall?A 2" thick cavity
  73. 73When using 9 gage ties in a composite wall, what is the proper separation of ties?One for every 2 2/3 square feet
  74. 74What type of CMU is commonly used with reinforcement?A Two-core CMU
  75. 75What is used to anchor masonry brick veneer to the structure?Corrugated metal ties
  76. 76How are blocks positioned in a wall?With the wide flange up
  77. 77When laying block, what distance should be maintained from the mason's line?1/16" away from the line so that you don't risk moving the line
  78. 78When laying an 8"concrete block wall, what is the trowel used for?To spread and furrow a full mortar bed
  79. 79The lead corner is usually laid up how many courses high?Four or five
  80. 80What diameter bar is used to make a 3/8" concave mortar joint?A 5/8" diameter bar
  81. 81This type of joint is made in masonry by raking out the mortar ¾” and sealing with a caulking compound.Control joint
  82. 82For Portland cement mixtures, what are the minimum cubic yards of cement required for 6 cubic yards of sand?One cubic yard of cement
  83. 83What type of footings are used for free standing columns or piers?Isolated
  84. 84Foundation walls that are being damp-proofed should be parged how many inches above the finish grade?6" above the finished grade
  85. 85What are masonry exterior non-load bearing walls that are not wholly supported at each story?Curtain walls
  86. 86How long must the outer wythe of a cavity wall be on each side of an external corner before expansion joints are recommended?50’ or more in length
  87. 87A masonry veneer will not:Support loads
  88. 88What is the most common face size for thin brick veneer?2 2/3" x 8"
  89. 89What masonry structural member is placed over an opening in a wall used to support the loads above that opening?A Lintel
  90. 90When should a jack arch be supported by steel?When it is over 2 feet wide
  91. 91Welded wire mesh for masonry should be lapped to what minimum distance?One full wire grid spacing plus 2 inches
  92. 92Typically, how thick are terrazzo toppings?1/2" Thick

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North Carolina General Contractor's Exam North Carolina General Contractor's Exam Flashcards on Modern Masonry, created by Steven Hall on 22/12/2017.
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Steven Hall
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  • Created by Steven Hall · Oct 8, 2017
  • Copied by Steven Hall · Dec 22, 2017
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