Material Testing Equipment Quiz

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Questions and Answers

What is the primary use of a sieve in material testing?

  • To separate wanted elements from unwanted material (correct)
  • To mix different materials together
  • To exert tensile stress on specimens
  • To measure temperature of materials

What dimensions characterize the top diameter of a slump cone?

  • 6" (152 mm)
  • 4" (102 mm) (correct)
  • 3" (76 mm)
  • 5" (127 mm)

Which type of mold is specifically used for preparing concrete specimens?

  • Cone molds
  • Plate molds
  • Vessel molds
  • Cube molds (correct)

What does a hydrometer measure?

<p>Specific gravity of liquids (C)</p> Signup and view all the answers

What is the primary function of a universal testing machine?

<p>To exert tensile, compressive, or transverse stress (A)</p> Signup and view all the answers

What is the purpose of using a tamping rod?

<p>To eliminate voids and excess air in fresh concrete (D)</p> Signup and view all the answers

What is a typical application of laboratory ovens?

<p>Sterilizing and drying materials (D)</p> Signup and view all the answers

What temperature measurement method is commonly found in thermometers?

<p>Liquid expansion (C)</p> Signup and view all the answers

What principle does the hydrometer operate on to provide readings?

<p>It compares the density of the liquid to the density of water. (A)</p> Signup and view all the answers

Which of the following statements accurately describes the slump test?

<p>It measures the workability of fresh concrete. (B)</p> Signup and view all the answers

In which instance would a universal testing machine be utilized?

<p>To perform tensile and compressive tests on materials. (B)</p> Signup and view all the answers

What is the primary purpose of using a sieve set in material testing?

<p>To separate particles based on size. (A)</p> Signup and view all the answers

What is NOT a function of a universal testing machine?

<p>Measuring temperature fluctuations. (B)</p> Signup and view all the answers

What characteristic does a concrete mixer enhance when mixing materials?

<p>The uniformity of the concrete mixture. (D)</p> Signup and view all the answers

Which types of molds are used for preparing concrete specimens?

<p>Cube, cylinder, and beam molds. (D)</p> Signup and view all the answers

What is the primary function of a thermometer in material testing?

<p>To measure and indicate temperature. (A)</p> Signup and view all the answers

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Study Notes

Sieve Set

  • A device used to separate wanted elements from unwanted material.
  • Also used to characterize the particle size distribution of a sample.
  • Examples of materials used in a sieve set are aggregates, sand, and other soil particles.

Slump Cone

  • A truncated cone metal mold used to fabricate the specimen for a slump test.
  • The slump test is an empirical test designed to measure the workability of fresh concrete.
  • Specifically, it measures the consistency of concrete in a specific batch.

Concrete Specimen Molds

  • There are three types of molds used in material testing labs:
    • Cube Molds
    • Cylinder Molds
    • Beam Molds

Hydrometer

  • An instrument used to measure the specific gravity (or relative density) of liquids.
  • It measures the ratio of the density of the liquid to the density of water.

Universal Testing Machine

  • A versatile instrument capable of exerting a tensile, compressive, or transverse stress on a specimen.
  • Used to determine Brinell hardness, ductility, cold bend, and other properties of materials.
  • The machine consists of three systems: loading, weighing, and indicating.
  • Loading can be applied either mechanically or hydraulically.

Concrete Mixer

  • Used to mix concrete.

Tamping Rod

  • Dimensionally accurate rod used to tamp fresh concrete into cylinder molds and slump cones.
  • This eliminates voids and excess air.

Thermometer

  • An instrument for measuring and indicating temperature.
  • Usually consists of a narrow, hermetically sealed glass tube marked with graduations and having at one end a bulb containing mercury or alcohol which expands along the tube.

Electric Oven

  • Ovens for high-forced thermal convection applications.
  • They provide uniform temperatures throughout the oven.
  • Applications include:
    • Annealing
    • Die-bond curing
    • Drying
    • Polyimide baking
    • Sterilizing
    • Other industrial laboratory functions.

Sieve Set

  • A device used to separate wanted elements from unwanted material or characterize the particle size distribution of a sample.
  • Used for materials like aggregates, sand, and soil particles.

Slump Cone

  • A metal mold shaped like a truncated cone used to create a concrete specimen for a slump test.
  • Measures the workability and consistency of fresh concrete.
  • Dimensions: Top diameter 4" (102 mm), Bottom diameter 8" (203 mm), Height 12" (305 mm).

Concrete Specimen Molds

  • Used in material testing labs to prepare concrete specimens.
  • Cube Molds: Used to create cube-shaped specimens.
  • Cylinder Molds: Used to create cylinder-shaped specimens.
  • Beam Molds: Used to create beam-shaped specimens.

Hydrometer

  • Measures the specific gravity (or relative density) of liquids.
  • Calculates the ratio of the liquid's density to the density of water.

Universal Testing Machine

  • Capable of applying tensile, compressive, or transverse stress to a specimen under test.
  • Adaptable for determining Brinell hardness, ductility, cold bend, and other material properties.
  • Comprises three systems: loading, weighing, and indicating, with loading applied either mechanically or hydraulically.

Concrete Mixer

  • A machine used to mix concrete ingredients, such as cement, aggregates, water, and admixtures.
  • Essential for creating homogeneous concrete mixtures.
  • Used in construction and other applications requiring concrete.

Tamping Rod

  • Dimensionally accurate rods used to compact fresh concrete into cylinder molds and slump cones.
  • Helps eliminate air voids and ensures consistent density.

Thermometer

  • Measures and indicates temperature.
  • Usually consists of a sealed glass tube with graduations and a bulb containing mercury or alcohol that expands with temperature changes.

Electric Oven

  • Designed for high-forced volume thermal convection applications in laboratories.
  • Provides consistent temperatures throughout, suitable for various applications.
  • Used in industrial laboratory functions like annealing, die-bond curing, drying, sterilizing, and baking.

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