Specific Gravity of Cement CEP 322 Quiz
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Questions and Answers

What is the purpose of using a tube sampler for sampling cement?

  • To ensure accurate measurement of the density of the cement
  • To prevent contamination during sampling (correct)
  • To speed up the sampling process
  • To reduce the cost of sampling

    • Why is kerosene or naphtha recommended for use in specific gravity/density testing of cement?

  • To provide color contrast for better visibility
  • To decrease the density of the cement
  • To ensure the liquid does not react with the cement (correct)
  • To increase the density of the cement

    • How is the Le Chatelier flask required for specific gravity/density testing of cement described?

  • Must have a wide neck for easy pouring
  • The glass stopper must be made of plastic
  • Square in cross-section
  • Should be chemically resistant and transparent (correct)

    • What is the purpose of ensuring the flasks are thoroughly annealed before being graduated?

    <p>To increase their resistance to breakage</p> Signup and view all the answers

    What is the importance of having small thermal hysteresis in the Le Chatelier flask?

    <p>To prevent cracking due to temperature changes</p> Signup and view all the answers

    How does using a balance/weighing scale with a sensitivity of 0.05 g contribute to accurate density measurements?

    <p>It increases the precision of weight measurements</p> Signup and view all the answers

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