Micrometer Quiz Questions and Answers

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Quizzes Created: 9 | Total Attempts: 84,781

Questions: 10 | Attempts: 37,593 | Updated: Mar 5, 2024

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Micrometer Quiz Questions And Answers - Quiz

Think you are an expert in micrometer and its readings? Can you pass this micrometer quiz with informative questions and answers? If yes, here we go. To begin with, a micrometer is a tool that is used for the precise measurement of tiny objects. It can measure the depth, length, and thickness of whatever object fits between its anvil and spindle. It is commonly used in mechanical engineering and machining applications. Do you have a good understanding of micrometers? Take this 'micrometer quiz' and see how good you can score. So, are you ready to take the test? Let's begin Read morethen. All the best!

Micrometer Questions and Answers

1.

Who invented the Micrometer?
- A.
  
  Guglielmo Marconi
- B.
  
  William Gascoigne
- C.
  
  John Logie Baird
Correct Answer
B. William Gascoigne

Explanation
William Gascoigne is credited with inventing the micrometer. He was an English astronomer and mathematician who developed the micrometer in the early 17th century. The micrometer is a precision measuring instrument used for accurately measuring small distances or thicknesses. Gascoigne's invention greatly improved the accuracy and precision of measurements in various fields, including astronomy and engineering.

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12
1
2.

The symbol used to measure the readings of a Micrometer is ____.
- A.
  
  μm
- B.
  
  Mm
- C.
  
  Cm
Correct Answer
A. μm

Explanation
The symbol used to measure the readings of a Micrometer is μm. This symbol represents micrometers, which is a unit of length equal to one millionth of a meter. Micrometers are commonly used to measure very small distances or dimensions, particularly in scientific and engineering fields. The symbol μm is derived from the Greek letter mu (μ), which represents "micro" in the International System of Units (SI).

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6
0
3.

What is the primary function of a micrometer?
- A.
  
  Measuring temperature
- B.
  
  Measuring distance
- C.
  
  Measuring small dimensions with high precision
- D.
  
  Measuring electrical current
Correct Answer
C. Measuring small dimensions with high precision

Explanation
The primary function of a micrometer is measuring small dimensions with high precision. A micrometer, also known as a micrometer screw gauge, is a precision measuring instrument used for accurately measuring extremely small distances or dimensions. It consists of a calibrated screw mechanism that allows for fine adjustments and precise measurements. Micrometers are commonly used in various fields, such as manufacturing, engineering, and scientific research, where precision in measurement is crucial. They are especially valuable when high accuracy is required, such as in the measurement of thickness, diameter, or depth of small objects.

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4
1
4.

Micrometers have a fixed spindle.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
Micrometers do not have a fixed spindle. The spindle is movable and can be adjusted to measure different objects with precision.

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5
0
5.
- A.
  
  .225"
- B.
  
  .248"
- C.
  
  .200
Correct Answer
A. .225"

Explanation
Since the right side of the micrometer reads zero, we cannot assume it is above or below the mark shown—.225”

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18
1
6.
- A.
  
  .100"
- B.
  
  .126"
- C.
  
  .125"
Correct Answer
C. .125"

Explanation
Since the right side of the micrometer reads zero, we cannot assume it is above or below the mark shown—.100”

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12
1
7.
- A.
  
  .400"
- B.
  
  .375"
- C.
  
  .368"
Correct Answer
B. .375"

Explanation
Since three marks are shown after .3, and each mark is .025, then this is .375”

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13
0
8.
- A.
  
  .438"
- B.
  
  .437"
- C.
  
  .440"
Correct Answer
B. .437"

Explanation
Since one mark is shown after .4, and each mark is .025, then this is .425. The indicator on the right shows .012, so this is .437”

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10
31
9.
- A.
  
  .220"
- B.
  
  .218"
- C.
  
  .219"
Correct Answer
C. .219"

Explanation
Since no mark is shown after .2, and. the indicator on the right shows .019 so this is .219”

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20
0
10.

State whether the following statement is true or false about micrometers. "Plastic insulated grips are employed on the frame to reduce heat transfer".
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
The statement is true. Plastic insulated grips are used on the frame of micrometers to reduce heat transfer. This helps to prevent the user's hand from getting too hot while using the micrometer, especially when measuring objects that may be at elevated temperatures. The plastic insulation acts as a barrier between the metal frame and the user's hand, reducing the amount of heat that is transferred.

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1