Vernier Calipers Overview
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Questions and Answers

What is the value of each numbered division on the Vernier scale?

  • 0.20 mm
  • 0.10 mm (correct)
  • 0.01 mm
  • 0.02 mm

    • What is the value of the shorter vertical lines between each numbered division on the Vernier scale?

  • 0.10 mm
  • 0.02 mm (correct)
  • 0.01 mm
  • 0.20 mm

    • To read the tenths of a millimeter, which line on the Vernier scale do you find?

  • The line that is closest to the zero line on the main scale
  • The first line that lines up precisely with a line on the main scale (correct)
  • The line that is halfway between two lines on the main scale
  • The line that is furthest from the zero line on the main scale

    • If the first Vernier line that lines up precisely with a line on the main scale lies to the right of the ‘2’, but before the ‘3’ on the Vernier scale, what is the tenths of a millimeter reading?

    <p>0.20 mm (A)</p> Signup and view all the answers

    To read the hundredths of a millimeter, what do you need to do?

    <p>Find the first line on the Vernier scale that lines up precisely with a line on the main scale (A)</p> Signup and view all the answers

    What is the value of each shorter vertical line between the numbered divisions on the Vernier scale?

    <p>0.02 mm (A)</p> Signup and view all the answers

    What is the purpose of the Vernier scale?

    <p>To measure the thickness of an object (A), To measure the length of an object (B), To measure the diameter of an object (C), To measure the width of an object (D)</p> Signup and view all the answers

    Which of the following is the correct way to read the Vernier scale?

    <p>Read the main scale first, then the Vernier scale (B)</p> Signup and view all the answers

    What is the maximum measurement length commonly available for metric Vernier callipers?

    <p>150 mm (D)</p> Signup and view all the answers

    What degree of accuracy does a metric Vernier calliper typically provide?

    <p>0.02 mm (A), 0.05 mm (C)</p> Signup and view all the answers

    In addition to metric measurements, Vernier callipers can also be calibrated in which measurement system?

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

    Which of the following measurements can Vernier callipers NOT accurately measure?

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

    What is the typical accuracy range when using Vernier callipers?

    <p>One hundredth to two hundredths of a millimeter (A)</p> Signup and view all the answers

    What is the primary purpose of a depth probe?

    <p>To measure the depth of an orifice. (A)</p> Signup and view all the answers

    Which part of the depth probe is responsible for engaging with the device?

    <p>The movable probe. (C)</p> Signup and view all the answers

    How is the depth measurement initiated with a depth probe?

    <p>By placing the surface of the calliper against the orifice. (D)</p> Signup and view all the answers

    What must be ensured for the depth probe to function accurately?

    <p>The calliper must be level with the orifice. (D)</p> Signup and view all the answers

    In what manner should the probe be moved to measure depth?

    <p>Slowly to ensure precision. (D)</p> Signup and view all the answers

    What is the primary purpose of a Vernier caliper?

    <p>To measure outside, inside, and depth dimensions (C)</p> Signup and view all the answers

    Which part of the Vernier caliper is movable?

    <p>The jaw with Vernier scale (C)</p> Signup and view all the answers

    What feature should be used to secure a measurement taken with a Vernier caliper?

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

    What part of the caliper is used to measure the inside dimensions?

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

    Which feature of the Vernier caliper provides additional measurement accuracy?

    <p>Vernier scale (B)</p> Signup and view all the answers

    How is the locking device engaged on a Vernier caliper?

    <p>By sliding the movable jaw (D)</p> Signup and view all the answers

    What can be measured with the outside jaws of a Vernier caliper?

    <p>The diameter of a shaft (B)</p> Signup and view all the answers

    Which component is NOT part of a Vernier caliper?

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

    How much does each line on the Vernier scale represent?

    <p>0.02 mm (B)</p> Signup and view all the answers

    What is the total measurement when adding three 0.02 mm divisions to the number 5.00 mm?

    <p>5.26 mm (A)</p> Signup and view all the answers

    What is the whole millimeter reading in the Vernier calliper example?

    <p>5.00 mm (D)</p> Signup and view all the answers

    How many total divisions of 0.02 mm are noted in the Vernier scale reading for the example given?

    <p>Three divisions (C)</p> Signup and view all the answers

    What type of measurement systems are mentioned as context around the Vernier scale?

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

    What is the purpose of checking the accuracy of a scale or instrument?

    <p>To ensure proper calibration (C)</p> Signup and view all the answers

    What could potentially affect the total measurement accuracy noted in the Vernier scale reading?

    <p>The quality of the instrument (D)</p> Signup and view all the answers

    What is the significance of the total measurement value calculated?

    <p>It reflects the accuracy of a scale (B)</p> Signup and view all the answers

    What does each division on the main scale equal?

    <p>4.00 mm (D)</p> Signup and view all the answers

    What is the process to read a Vernier calliper?

    <p>Read the main scale and add tenths and hundredths (C)</p> Signup and view all the answers

    If a measurement falls between 8 and 9 on the scale, and the matching line is identified as 0.80, what should be added for full accuracy?

    <p>0.05 mm (D)</p> Signup and view all the answers

    What is indicated by the position of the zero line on the Vernier scale?

    <p>The starting point of measurement on the main scale (C)</p> Signup and view all the answers

    How many full millimetres are indicated in the provided figure when the zero line is positioned?

    <p>24.00 mm (C)</p> Signup and view all the answers

    What is the significance of matching lines in the reading process?

    <p>They indicate a halfway measurement between two main scale divisions (C)</p> Signup and view all the answers

    What additional reading is included alongside the whole millimetre reading?

    <p>Tenths and hundredths of a millimetre are both counted (B)</p> Signup and view all the answers

    What feature of a Vernier calliper allows for accurate measurement of smaller dimensions?

    <p>The Vernier scale (D)</p> Signup and view all the answers

    Study Notes

    Vernier Calipers

    • Vernier calipers are used for accurate internal, external, and depth measurements.
    • They can be calibrated in metric or imperial units.
    • Measurements range from 0 mm to typically 150 mm, but larger sizes are available.
    • Accuracy is either 0.02 mm or 0.05 mm, noted on the Vernier scale.

    Parts of a Metric Vernier Caliper

    • Outside jaws: Used for external measurements (e.g., shaft diameter).
    • Vernier scale: A secondary scale for precise readings.
    • Locking device: Secures the measurement.
    • Inside jaws: Used for internal measurements (e.g., hole diameter).
    • Depth probe: Used to measure depth.
    • Main scale: The primary scale for determining whole millimeters.

    Vernier Caliper Accuracy

    • 0.02 mm calipers have divisions on the Vernier scale equal to 0.02 mm.
    • 0.05 mm calipers have divisions on the Vernier scale equal to 0.05 mm.

    Using a Vernier Caliper

    • Outside dimensions: Place the jaws on the object and close; read the scale.
    • Inside dimensions: Insert the jaws and close; read the scale.
    • Depth measurement: Use the depth probe to measure the depth of a hole; carefully engage the locking device.

    Reading a Vernier Caliper

    • Begin by identifying the accuracy (0.02 mm or 0.05 mm).
    • Whole Millimeters: Read the full millimeter value from the main scale where the Vernier's zero line falls (e.g., 24.00 mm).
    • Tenths of a Millimeter.: Find the line on the Vernier scale which precisely aligns with a line on the main scale. This gives the tenths value (e.g., 0.80 mm).
    • Hundredths of a Millimeter: Determine the correct increment based on the accuracy (0.02 mm or 0.05 mm).
    • Total: Add the whole millimeters, tenths, and hundredths values together (e.g., 24.85 mm).

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    Vernier Calipers PDF

    Description

    This quiz covers the essential aspects of Vernier calipers, including their parts, accuracy, and measurement techniques. Understand how to utilize Vernier calipers for precise internal, external, and depth measurements, whether in metric or imperial units. Explore the functions of each component to enhance your measurement skills.

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