WorksheetsEngineering Metrology- Quiz No-1
Total questions: 20
Worksheet time: 20mins
What is bilateral tolerance?
Total tolerance is in 1 direction only
Total tolerance is in both the directions
May or may not be in one direction
Tolerance provided all over the component body
Has to ensure the adequate function of measurement instruments used in industry as well as production and testing process.
· Scientific Metrology
· Industrial Metrology
· Legal Metrology
· Fundamental Metrology
It is the susceptibility of a measurement device to have its indicators converted into meaningful numbers.
· Readability
· Precision
· Inspection
· Error
Sine bar is used to measure an angle upto.......... degrees.
30
45
60
90
Which of the following causes is/are responsible for systematic errors?
non linearity
change in sensitivity
zero offset
All of the above
In which of the following length standards, parallax error is observed?
line standard
end standard
both a & b
none of the above
Which of the following is a characteristic of End standard?
accuracy of ± 0.2 mm
accuracy of ± 0.050 mm
accuracy of ± 0.001 mm
accuracy of ± 1.00 mm
From which category, sigma comparator belongs?
Optical comparator
mechanical comparator
mechanical-optical comparator
electric comparator
What is the advantage of mechanical comparator over others?
Less moving parts
No need of external supply
No error due to parallax
Large range of instrument
Which of the following is not correct about wavelength standard?
Wavelength of monochromatic light is an invariable unit of length
Wavelength standard is a physical standard
It is a reproducible standard
It is a natural unit of length
Which of the following error is not a systematic error?
Error induced due to stylus pressure
Instrument location errors
Error due to parallax
Error due to play in the instrument’s linkages
The desirable static characteristics of a measuring system are
Accuracy and resproducibility
Accuracy, sensitivity and reproducibility
Drift and dead zone
Static error
If the instrument is used in wrong manner while application, then it will results in
Systematic error
Instrument error
Random error
Environmental error
Random errors in a measurement system are due to
Environmental changes
Use of uncalibrated instrument
Poor cabling practices
Unpredictable effects
In a measurement system,
A single measurement components may have both random errors and systematic errors
A measurement system consists of several components with each component having separate errors
Both the statement (a) & (b) are true
Neither statement (a) nor statement (b) are true
The study of scientific metrology deals with
accuracy and methods of measurement
standard specifications
theories related to nature
all of the above
What is the main purpose of Wringing of slip gauges?
Increase length between mating slips
Reduce length between mating slips
Remove air-gap between mating slips
Align mating slips
None of the above
Metro logy is a branch of science which deals with ___.
MEASUREMENTS
TOOLS
INSTRUMENTS
DIMENSIONS
1°C = _______K
272
273
274
275
What it indicates?
More precise and more accurate
No precise but accurate
accurate but not precise
neither precise nor accurate
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