Measurements of Limit Gauges MCQ

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• Which of the following is true for the measurement of taper ring gauges?
  ক

  Taper ring gauges of sizes above the diameter of 20 mm are best measured by inserting precision balls of different sizes in the gauge

  খ

  Taper ring gauges of sizes below the diameter of 20 mm are best measured by inserting precision balls of different sizes in the gauge

  গ

  Taper ring gauges of size equal to the diameter of 20 mm are best measured by inserting precision balls of different sizes in the gauge

  ঘ

  Taper ring gauges of all sizes are best measured by inserting precision balls of different sizes in the gauge
• Which of the following is best gauge/machine to inspect the parallel screw ring gauges?
  ক

  Hand micrometer

  খ

  Plug check gauges

  গ

  Comparators

  ঘ

  Bench micrometer
• Which of the following is true for parallel screw plug gauges?
  ক

  The minor diameter is measured by making a measurement on a diameter measuring machine between the flat ends of Vees

  খ

  The flank angle is measured by making a measurement on a diameter measuring machine between the flat ends of Vees

  গ

  The effective diameter is measured by making a measurement on a diameter measuring machine between the flat ends of Vees

  ঘ

  Pitch is measured by making a measurement on a diameter measuring machine between the flat ends of Vees
• Which of the following statement is true for measurement of height and depth gauges? Statement 1: These can be measured by comparators. Statement 2: Gap of light method is not good for depth gauges.
  ক

  T, T

  খ

  T, F

  গ

  F, F

  ঘ

  F, T
• What is the standard magnification used by an optical projector to inspect form of profile gauges?
  ক

  50

  খ

  100

  গ

  150

  ঘ

  200
• Which of the following is most convenient to measure the cylindrical ring gauges?
  ক

  Slip gauges

  খ

  Micrometer

  গ

  Measurement by using rollers

  ঘ

  Pneumatic comparators
• Which of the following is not used to measure the plain plug gauges if the tolerance less than 0.025 mm?
  ক

  Bench micrometer

  খ

  Diameter measuring machine

  গ

  Hand micrometer

  ঘ

  High magnification dial comparator
• What is the advantage of the use of slip gauge standards for dial comparators?
  ক

  Size of the standard is equal to one of the limits of the plug gauge size

  খ

  Size of the standard is greater than one of the limits of the plug gauge size

  গ

  Size of the standard is less than one of the limits of the plug gauge size

  ঘ

  Slip gauges are more accurate
• Up to which accuracy small gap gauges can be measured by using slip gauges?
  ক

  ± 0.001 mm

  খ

  ± 0.002 mm

  গ

  ± 0.003 mm

  ঘ

  ± 0.004 mm
• Which of the following is generally used to check the hardness of the gauging surface of screw ring gauges?
  ক

  Rockwell hardness testing machine

  খ

  Charpy hardness testing machine

  গ

  Diamond pyramid machine

  ঘ

  Scratch test