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Q.1
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
Q.2
1°C = _______K
272
273
274
275
Q.3
Metro logy is a branch of science which deals with ___.
MEASUREMENTS
TOOLS
INSTRUMENTS
DIMENSIONS
Q.4
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
Q.5
The study of scientific metrology deals with
accuracy and methods of measurement
standard specifications
theories related to nature
all of the above
Q.6
If the instrument is used in wrong manner while application, then it will results in
Systematic error
Instrument error
Random error
Environmental error
Q.7
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
Q.8
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
Q.9
The desirable static characteristics of a measuring system are
Accuracy and resproducibility
Accuracy, sensitivity and reproducibility
Drift and dead zone
Static error
Q.10
From which category, sigma comparator belongs?
Optical comparator
mechanical comparator
mechanical-optical comparator
electric comparator
Q.11
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
Q.12
In which of the following length standards, parallax error is observed?
line standard
end standard
both a & b
none of the above
Q.13
Which of the following causes is/are responsible for systematic errors?
non linearity
change in sensitivity
zero offset
All of the above
Q.14
Sine bar is used to measure an angle upto.......... degrees.
30
45
60
90
Q.15
It is the susceptibility of a measurement device to have its indicators converted into meaningful numbers.
· Readability
· Precision
· Inspection
· Error
Q.16
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
Q.17
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
Q.18
DimensionH7 indicates
Hundred houses on 7th cross
100 horses in 7 rows
Basic size of 100 , H fundamental deviation for Hole and 7 IT Grade
Basic size of 100 , H fundamental deviation for shaft and 7 IT Grade
Q.19
In the Standard ISof limits & Fits; there are _______ number of fundamental deviations.
20
100
28
25
Q.20
The maximum and minimum limit of size for the dimension± 0.mm is
105.00 mm & 95.0 mm
100.05 mm & 99.05 mm
150.00 mm & 50.0 mm
100.50 mm & 99.50 mm
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