Angeles University Foundation Construction Material and Testing Quiz
30 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What property does alumina impart to cement?

  • Increased setting time
  • Reduced setting time (correct)
  • Increased strength
  • Reduced weight

    • What is the effect of excess alumina on cement?

  • Increases strength
  • Has no effect
  • Increases setting time
  • Decreases strength (correct)

    • What is the maximum amount of magnesia that should be present in cement?

  • 1%
  • 3%
  • 5%
  • 2% (correct)

    • What is the role of iron oxide in cement?

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

    What is the purpose of adding gypsum (CaSO4·2H2O) to cement?

    <p>To increase setting time</p> Signup and view all the answers

    What is the maximum amount of sulfur trioxide that should be present in cement?

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

    Why is the presence of lime in a sufficient quantity required in cement?

    <p>To impart strength to the cement</p> Signup and view all the answers

    What happens if there is an excess of lime in cement?

    <p>Causes the cement to expand and disintegrate</p> Signup and view all the answers

    What is the role of silica in cement?

    <p>Impart strength to the cement</p> Signup and view all the answers

    Which component of cement usually presents to about 30 percent of its composition?

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

    What is the main function of alumina in cement?

    <p>Imparts strength to cement</p> Signup and view all the answers

    What happens if there is a deficiency in lime in cement?

    <p>Reduces strength of the property</p> Signup and view all the answers

    What is the primary focus of Field Testing in construction materials and testing?

    <p>Identifying if further study is needed</p> Signup and view all the answers

    In the context of construction, what does 'manufacturing' refer to?

    <p>Mass producing similar items without a designated purchaser</p> Signup and view all the answers

    Who typically takes on multiple roles such as laborer, paymaster, and design team in a building construction project?

    <p>The owner of the property</p> Signup and view all the answers

    What does CMT stand for in the context of construction?

    <p>Construction Materials and Testing</p> Signup and view all the answers

    Which area of testing services involves activities like evaluating compaction, moisture, and air content?

    <p>Field Testing</p> Signup and view all the answers

    When Field Testing indicates a need for further study, what is the next step in the comprehensive CMT process?

    <p>Laboratory testing</p> Signup and view all the answers

    What is the primary purpose of testing construction materials?

    <p>To ensure the viability and safety of a construction project</p> Signup and view all the answers

    Which of the following is NOT a common type of laboratory testing for construction materials?

    <p>Aesthetic appeal testing</p> Signup and view all the answers

    Where does field testing of construction materials typically take place?

    <p>On construction sites, such as roadways, airports, and building developments</p> Signup and view all the answers

    Which type of testing is NOT mentioned in the text?

    <p>Electrical testing</p> Signup and view all the answers

    What is a common basic material used in construction, according to the text?

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

    Which of the following statements is NOT true regarding the importance of construction material testing?

    <p>It is primarily concerned with aesthetic considerations rather than safety</p> Signup and view all the answers

    What is the coefficient of thermal expansion for concrete compared to steel?

    <p>1.2 × 10^-5</p> Signup and view all the answers

    What contributes to the protection of steel in corrosive environments when used in conjunction with concrete?

    <p>CH and alkalis in concrete</p> Signup and view all the answers

    According to the American Concrete Institute (ACI), how is workability of concrete defined?

    <p>The ease and homogeneity with which concrete can be mixed, placed, consolidated, and finished</p> Signup and view all the answers

    Why do concrete structures generally require lower maintenance compared to steel or wooden structures?

    <p>They do not require routine coating or painting for weathering protection</p> Signup and view all the answers

    How can concrete be applied in different methodologies according to the text?

    <p>Hand applied, poured, pumped, sprayed, grouted, shotcreted in tunnels</p> Signup and view all the answers

    What does ASTM (American Society for Testing Materials) consider workability of concrete to be?

    <p>The ease of manipulation with minimum homogeneity loss</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser