Construction Materials and Techniques Quiz
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Questions and Answers

What material is used to fabricate wire-enclosed riprap in a gabion system?

  • Bituminous surfacing
  • Choker aggregate
  • Concrete
  • Wire mesh (correct)
  • Which term refers to the practice of wrapping riprap to allow the use of smaller rocks with the same water energy resistance as larger rocks?

  • Barriers (correct)
  • Geosynthetics
  • Acronyms
  • Borrow Material
  • In termite/bukbok proofing, what system relies on physical barriers to protect against termites?

  • Bait system
  • Wire mesh
  • Bituminous Surfacing (correct)
  • Choker aggregate
  • Which material is particularly advantageous in areas inaccessible to trucks or large construction equipment?

    <p>Choker aggregate</p> Signup and view all the answers

    What is the main purpose of a gabion system in construction?

    <p>Erosion control</p> Signup and view all the answers

    What does the acronym ASTM stand for?

    <p>American Society for Testing Materials</p> Signup and view all the answers

    Which material is used for erosion control and slope stabilization?

    <p>All of the above</p> Signup and view all the answers

    What is the purpose of a choker aggregate in road construction?

    <p>To provide a smooth surface for paving</p> Signup and view all the answers

    Which of the following is a type of termite proofing method?

    <p>All of the above</p> Signup and view all the answers

    What is the purpose of a base course in road construction?

    <p>To distribute vehicle loads to the subgrade</p> Signup and view all the answers

    What type of material is used for the Base Course according to the text?

    <p>Stone and sand</p> Signup and view all the answers

    Which AASHTO methods are required for the Base Course Grading according to the text?

    <p>T-11 and T-26</p> Signup and view all the answers

    What is used for Termite Proofing according to the text?

    <p>Chemical Barrier</p> Signup and view all the answers

    What is the purpose of Gabion as mentioned in the text?

    <p>Erosion Control</p> Signup and view all the answers

    Which material is NOT suitable for use in the Base Course as per the text?

    <p>Vegetable matter</p> Signup and view all the answers

    What is the purpose of granular fill or filters in construction?

    <p>To prevent the movement of fine particles out of soils and other natural materials through which seepage occurs</p> Signup and view all the answers

    Which of the following materials is considered borrow fill?

    <p>Selected laboratory-approved pit-run gravel, disintegrated granite, sand, shale, cinders or other similar materials</p> Signup and view all the answers

    Which section of the text discusses termite/bukbok proofing methods?

    <p>2.TERMITE/BUKBOK PROOFING</p> Signup and view all the answers

    What is the maximum fraction passing the No. 200 sieve allowed for borrow fill materials?

    <p>35%</p> Signup and view all the answers

    Which section of the text discusses paving and surfacing materials?

    <p>3.ROADS &amp; PARKING</p> Signup and view all the answers

    What is the formula to calculate the Plasticity Index (PI)?

    <p>Liquid Limit - Plastic Limit = PI</p> Signup and view all the answers

    Which Unified Soil Classification System (USCS) category includes Gravels with > 50% retained on No. 200 sieve and > 50% further retained on No.40 sieve?

    <p>GW</p> Signup and view all the answers

    What is the term used for soil, crushed stone, and sand used to raise an existing grade or as a man-made deposit under footings or concrete slabs on grade?

    <p>Fill Material</p> Signup and view all the answers

    In Termite Proofing, which method involves using physical barriers to prevent termite infestations?

    <p>Physical Barrier</p> Signup and view all the answers

    Which term refers to the range of water content over which sediment behaves in construction materials?

    <p>Plasticity Index</p> Signup and view all the answers

    What is the primary purpose of riprap?

    <p>To prevent erosion, scour or sloughing</p> Signup and view all the answers

    What is the typical size range for riprap aggregate?

    <p>50mm to 1148mm</p> Signup and view all the answers

    What factors influence the resistance of riprap to displacement by moving water?

    <p>Both A and B</p> Signup and view all the answers

    What is the primary concern when selecting riprap material?

    <p>Soundness and freedom from defects or impurities</p> Signup and view all the answers

    What is the term 'riprap' commonly used to refer to?

    <p>The stone used for the lining</p> Signup and view all the answers

    Which of the following is NOT a factor in determining the resistance of riprap to displacement?

    <p>Color of the stone</p> Signup and view all the answers

    What is the purpose of a filter blanket in riprap construction?

    <p>To separate the riprap from the underlying soil</p> Signup and view all the answers

    Which of the following is NOT a characteristic of sound riprap material?

    <p>Highly porous</p> Signup and view all the answers

    What is the primary function of riprap in construction?

    <p>Erosion control</p> Signup and view all the answers

    Which of the following is NOT a factor in determining the appropriate riprap gradation?

    <p>Stone color</p> Signup and view all the answers

    Which type of soil particle is the largest?

    <p>Boulders</p> Signup and view all the answers

    What is the purpose of the AASHTO soil classification system mentioned in the text?

    <p>To classify soils based on their suitability as subgrade materials</p> Signup and view all the answers

    What is the purpose of the Atterberg Limits tests described in the text?

    <p>To determine the transition points between liquid, plastic, and solid states of a soil</p> Signup and view all the answers

    Which type of soil particle is the smallest?

    <p>Silt-Clay Particles</p> Signup and view all the answers

    What is the primary purpose of oiling the lumber forms before they are set in place?

    <p>To prevent concrete from adhering to the wood and create a rough, unpleasant appearance</p> Signup and view all the answers

    When should oil not be used on forms against surfaces that will be plastered?

    <p>When the plastered surface needs to adhere well to the concrete</p> Signup and view all the answers

    What is the recommended method for preparing forms that have been used once and will be used again?

    <p>Both a and b</p> Signup and view all the answers

    What is the purpose of using a lubricant on the forms for concrete?

    <p>To make it easier to remove the forms after the concrete has hardened</p> Signup and view all the answers

    What is the main purpose of wetting the forms with water instead of using oil when the concrete surface will be plastered?

    <p>To ensure the plaster adheres properly to the concrete surface</p> Signup and view all the answers

    What is the primary reason for coating the inside of reused forms with an approved soap or other material?

    <p>To make it easier to remove the forms after the concrete has hardened</p> Signup and view all the answers

    What is the primary purpose of using crude oil or petroline on the forms?

    <p>To preserve the forms against damage by alternate wetting and drying</p> Signup and view all the answers

    When should oil not be used on the forms for concrete?

    <p>When the concrete surface will be plastered</p> Signup and view all the answers

    What is the proportion of cement to fine aggregate to coarse aggregate for Class 'A' concrete?

    <p>1 : 2 : 4</p> Signup and view all the answers

    Which class of concrete is recommended for mass concrete works?

    <p>Class 'D'</p> Signup and view all the answers

    What is the equivalent measure of one 'part' in the concrete proportions?

    <p>One cubic foot</p> Signup and view all the answers

    For which type of concrete structure is the Class 'C' proportion (1:3:6) recommended?

    <p>Non-critical concrete structures</p> Signup and view all the answers

    How many bags of cement are approximately equivalent to one cubic foot?

    <p>1 bag</p> Signup and view all the answers

    Which class of concrete is recommended for concrete under water and retaining walls?

    <p>Class 'AA'</p> Signup and view all the answers

    What is the proportion of cement to fine aggregate to coarse aggregate for Class 'B' concrete?

    <p>1 : 2.5 : 5</p> Signup and view all the answers

    Which class of concrete is recommended for walls thicker than 100mm (4"), footings, steps, and reinforced concrete slabs on fill?

    <p>Class 'B'</p> Signup and view all the answers

    What is the main purpose of using cinders in concrete?

    <p>To provide weight savings</p> Signup and view all the answers

    Which of the following is NOT a property of lightweight cinders?

    <p>High combustible content</p> Signup and view all the answers

    What is the main component of cinders?

    <p>A mixture of ash and combustible matter</p> Signup and view all the answers

    Which type of concrete is best suited for weight-saving applications?

    <p>Concrete made with haydite (expanded clay or shale)</p> Signup and view all the answers

    What is the main advantage of using cinders in concrete, as mentioned in the text?

    <p>Weight savings</p> Signup and view all the answers

    Which of the following is NOT a type of lightweight aggregate mentioned in the text?

    <p>Crushed stone</p> Signup and view all the answers

    Which of the following properties are often unsound in lightweight cinders?

    <p>Physical and chemical properties</p> Signup and view all the answers

    What is the primary reason for using cinders in concrete, as mentioned in the text?

    <p>To decrease the weight of the concrete</p> Signup and view all the answers

    What is the primary purpose of using sheathing lumber dressed on all four sides?

    <p>To provide a smooth and true surface where appearance is important</p> Signup and view all the answers

    What type of lumber is recommended for achieving tight joints in floor and wall panel construction?

    <p>Tongue-and-groove lumber</p> Signup and view all the answers

    Which of the following lumber sizes is typically used for struts, posts, shores, and uprights?

    <p>2x4s</p> Signup and view all the answers

    Which of the following statements is true regarding the use of nails in form construction?

    <p>Use nails sparingly to facilitate easy wrecking and re-use of lumber</p> Signup and view all the answers

    What is the recommended practice when using nails in form construction?

    <p>Leave the nail head protruding for easy removal without damaging the lumber</p> Signup and view all the answers

    Which of the following cementing materials is mentioned in the text?

    <p>Lime</p> Signup and view all the answers

    What is the purpose of curing concrete?

    <p>To control the rate and extent of shrinkage</p> Signup and view all the answers

    Which of the following is a type of processed concrete mentioned in the text?

    <p>Lightweight concrete</p> Signup and view all the answers

    Which method of proportioning concrete is described as the oldest, most commonly used, and least scientific?

    <p>Proportioning by arbitrary proportions</p> Signup and view all the answers

    In the arbitrary proportioning method, how are the aggregates measured?

    <p>By volume</p> Signup and view all the answers

    What is the standard unit used to measure the quantity of cement in the arbitrary proportioning method?

    <p>1 sack</p> Signup and view all the answers

    What is the purpose of adding water in the arbitrary proportioning method?

    <p>To increase the workability of the concrete</p> Signup and view all the answers

    Which section of the text provides an overview of the different types of processed concrete?

    <p>Section 4.01 Types of Processed Concrete</p> Signup and view all the answers

    Which of the following is NOT mentioned as a quality of good concrete in the text?

    <p>Resistance to weathering</p> Signup and view all the answers

    What is the purpose of the Slump Test described in the text?

    <p>To assess the workability of the concrete</p> Signup and view all the answers

    Which section of the text discusses the materials used to make concrete?

    <p>Section 3.03 Materials of Concrete</p> Signup and view all the answers

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