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 (A)</p> Signup and view all the answers

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

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

What does the acronym ASTM stand for?

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

Which material is used for erosion control and slope stabilization?

<p>All of the above (D)</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 (A)</p> Signup and view all the answers

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

<p>All of the above (D)</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 (A)</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 (C)</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 (A)</p> Signup and view all the answers

What is used for Termite Proofing according to the text?

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

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

<p>Erosion Control (A)</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 (D)</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 (D)</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 (B)</p> Signup and view all the answers

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

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

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

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

Which section of the text discusses paving and surfacing materials?

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

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

<p>Liquid Limit - Plastic Limit = PI (B)</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 (C)</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 (A)</p> Signup and view all the answers

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

<p>Physical Barrier (C)</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 (B)</p> Signup and view all the answers

What is the primary purpose of riprap?

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

What is the typical size range for riprap aggregate?

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

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

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

What is the primary concern when selecting riprap material?

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

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

<p>The stone used for the lining (D)</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 (A)</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 (A)</p> Signup and view all the answers

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

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

What is the primary function of riprap in construction?

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

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

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

Which type of soil particle is the largest?

<p>Boulders (B)</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 (C)</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 (D)</p> Signup and view all the answers

Which type of soil particle is the smallest?

<p>Silt-Clay Particles (D)</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 (A)</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 (A)</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 (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 (D)</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 (C)</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 (A)</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 (D)</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 (D)</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 (A)</p> Signup and view all the answers

Which class of concrete is recommended for mass concrete works?

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

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

<p>One cubic foot (C)</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 (D)</p> Signup and view all the answers

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

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

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

<p>Class 'AA' (B)</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 (A)</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' (C)</p> Signup and view all the answers

What is the main purpose of using cinders in concrete?

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

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

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

What is the main component of cinders?

<p>A mixture of ash and combustible matter (A)</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) (C)</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 (D)</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 (B)</p> Signup and view all the answers

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

<p>Physical and chemical properties (B)</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 (A)</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 (D)</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 (A)</p> Signup and view all the answers

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

<p>2x4s (C)</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 (D)</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 (B)</p> Signup and view all the answers

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

<p>Lime (D)</p> Signup and view all the answers

What is the purpose of curing concrete?

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

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

<p>Lightweight concrete (C)</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 (D)</p> Signup and view all the answers

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

<p>By volume (C)</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 (A)</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 (A)</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 (D)</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 (D)</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 (A)</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 (A)</p> Signup and view all the answers

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