Metrology MCQ Questions And Answers
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Are you pursuing a career or planning to pursue meteorology? Take this metrology quiz to check your basic knowledge of meteorology. Whether you are already in the profession or going to pursue it, this quiz will help you practice and know, how well do you understand meteorology. Your result will be evaluated according to all the correct answers you choose. All the best for a perfect score and a successful career. Share the quiz if you find the quiz interesting and informative.
- 1.When a set of readings of measurement has a wide range, it indicates
- A.
High precision
- B.
High accuracy
- C.
Low precision
- D.
Low accuracy
- 2.The difference between the lower and higher values that an instrument can measure is called.
- A.
Accuracy
- B.
Sensitivity
- C.
Range
- D.
Error
- 3.When determining the uncertainty for a particular measurement device, the common uncertainty factors that should be included are
- A.
Errors in the measurement technique and method
- B.
Random variability of the measurement process
- C.
Technician's error
- D.
All of these
- 4.The aim of calibration is to
- A.
Meet customer requirement
- B.
Detect deterioration of accuracy
- C.
Comply with ISO9000 standard requirements
- D.
Practice measurement procedures
- 5.Which of the following defines parallax error
- A.
Same as observational error
- B.
The apparent shift of an object when the position of the observer is altered
- C.
Error caused by the distance between scale and the measured feature
- D.
Mean of the values of measurements when the object is observed from the right and from the left
- 6.Which of the following errors is eliminated or minimized by zero setting adjustment on a dial indicator
- A.
Parallax Error
- B.
Inherent Error
- C.
Alignment Error
- D.
Computational Error
- 7.When a steel rule is used, which of the following is the source of measurement uncertainty
- A.
Inherent instrument error, temperature error, and manipulative error
- B.
Attachment error, manipulative error, and temperature error
- C.
Attachment error, bias, and inherent instrument error
- D.
Inherent instrument error, manipulative error, and observational error
- 8.Accuracy is defined as
- A.
A measure of how often an experimental value can be repeated
- B.
The closeness of a measured value to the real value
- C.
The number of significant figures used in a measurement
- D.
None of these
- 9.Conformity of a physical quantity to the national standard of measurement is known as
- A.
Calibration
- B.
Sensitivity
- C.
Traceability
- D.
Repeatability
- 10.Systematic errors are
- A.
Controllable errors
- B.
Random errors
- C.
Uncontrollable errors
- D.
None of these
- 11.When a series of repeated measurements that are made in a component under similar conditions are plotted, it follows.
- A.
Lognormal distribution
- B.
Weibull distribution
- C.
Binomial distribution
- D.
Gaussian distribution
- 12.Random errors can be assessed.
- A.
Experimentally
- B.
By performing sensitivity analysis
- C.
Statistically
- D.
Empirically
- 13.A modern meter is
- A.
The length of the path traveled by light in vacuum during a time interval of 1/299792458 of a second
- B.
1650763.73 X wavelengths of the red-orange radiation of krypton 86 atom in a vacuum
- C.
The length of the path traveled by light in vacuum during a time interval of 1/399792458 of a second
- D.
1660793.73 X wavelengths of the red-orange radiation of krypton 86 atom in the vacuum.
- 14.Reproducibility of the modern meter is of the order of
- A.
1 part in 100 million
- B.
3 parts in 1011
- C.
3 parts in 109
- D.
1 part in 1000 million
- 15.When a measurement is made between two flat parallel surfaces, it is called.
- A.
Line measurement
- B.
Direct measurement
- C.
Standard measurement
- D.
End measurement
- 16.A public institution for standardizing and verifying instruments, testing materials, and determining physical constants are
- A.
BPL
- B.
IPL
- C.
NPL
- D.
NMI
- 17.Subdivisions of end standards are carried out using.
- A.
Crook's level comparator
- B.
Brookes level comparator
- C.
Johnsson Mikrokator
- D.
Sigma electronic comparator
- 18.When airy points support a length standard of two points, they will be apart by a distance.
- A.
0.577L
- B.
0.575L
- C.
0.757L
- D.
0.775L
- 19.Which one of the following is true?
- A.
Line standard does not have parallax error.
- B.
End standard does not have parallax error.
- C.
Both line and end standards have parallax error.
- D.
Both line and end standards do not have parallax error.
- 20.Alignment with the axis of measurement is easy in end standards because they possess
- A.
Parallax effect
- B.
High accuracy
- C.
Airy points
- D.
A built-in datum
- 21.A line standard is transferred to an end standard by using.
- A.
A composite line standard
- B.
A built-in datum
- C.
Workshop standard
- D.
Airy points
- 22.Both line and end standards are initially calibrated at
- A.
18 +/- 1 degrees
- B.
18 +/- 0.5 degrees
- C.
20+/- 0.5 degrees
- D.
20 +/- 1 degrees
- 23.In a line standard, distance is measured between
- A.
Two flat parallel surfaces
- B.
Two engraved lines
- C.
Two points
- D.
Two inclined surfaces
- 24.Wringing of slip gauges is used in
- A.
Line measurement
- B.
Primary standards
- C.
Both line and end standards
- D.
End standards
- 25.Comparison of the characteristics of line and end standards clearly shows that the accuracy.
- A.
Inline standard is greater than in end standard
- B.
In end, standard is greater than inline standard
- C.
Of both are equal
- D.
Cannot be determined by the comparison of characteristics only
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