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Metrology Engineering MCQ Mechanical Engineering

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About Metrology Engineering

Following are some of the multiple choice questions on the Metrology Engineering with answers that will help the students in developing their knowledge.

Metrology Engineering MCQ

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

2. LVDT kependekan dari

linear-variable differential transformer

3. Jelaskan yang dimaksud dengan Rule of 10

instrumen atau pengukur harus 10kali lebih akurat daripada toleransi dimensi dari bagian yang diukur.

4. Sebutkan 4 faktor yang berkontribusi dalam penyimpangan dimensi dalam pembuatan part oleh mesin produksi

Static and dynamic deflections of the machineDistortion of the machineWear of tools, dies, and moldsHuman errors and miscalculations

5. Karakteristik alat ukur secara umum, kecuali

Perpendicularity
Diameter
Calibration
Rule of 10
Sensitivity

6. Karakteristik alat ukur secara umum

Perpendicularity
Diameter
Calibration
Rule of 10
Sensitivity

7. 1°C = _______K

272
273
274
275

8. Pada gambar dibawah ini mana yang termasuk kedalam instrumen modern

9. Metro logy is a branch of science which deals with ___.

MEASUREMENTS
TOOLS
INSTRUMENTS
DIMENSIONS

10. 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

11. The study of scientific metrology deals with

accuracy and methods of measurement
standard specifications
theories related to nature
all of the above

12. 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

13. Random errors in a measurement system are due to

Environmental changes
Use of uncalibrated instrument
Poor cabling practices
Unpredictable effects

14. If the instrument is used in wrong manner while application, then it will results in

Systematic error
Instrument error
Random error
Environmental error

15. 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

16. 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

17. The desirable static characteristics of a measuring system are

Accuracy and resproducibility
Accuracy, sensitivity and reproducibility
Drift and dead zone
Static error

18. From which category, sigma comparator belongs?

Optical comparator
mechanical comparator
mechanical-optical comparator
electric comparator

19. 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

20. In which of the following length standards, parallax error is observed?

line standard
end standard
both a & b
none of the above

21. Which of the following causes is/are responsible for systematic errors?

non linearity
change in sensitivity
zero offset
All of the above

22. Sine bar is used to measure an angle upto.......... degrees.

30
45
60
90

23. It is the susceptibility of a measurement device to have its indicators converted into meaningful numbers.

· Readability
· Precision
· Inspection
· Error

24. 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

25. 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

26. Pada gambar dibawah ini mana yang termasuk kedalam instrumen tradisonal

27. Apa yang dimaksud dengan presisi

sejauh mana instrumen memberikan pengukuran berulang dari standar yang sama

28. Apa yang dimaksud dengan resolusi

perbedaan dimensi terkecil suatu instrumen pengukur

29. Dimension 100 H7 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

30. In the Standard IS 919 of limits & Fits; there are _______ number of fundamental deviations.

20
100
28
25

31. The maximum and minimum limit of size for the dimension 100 ± 0.50 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

32. _________ refers to the closeness of 2 or more measurements to each other.

Precision
Accuracy
Togetherness
Standard Value

33. Why study Limit system? Which below statement does not reason the purpose of studying limit system

Exact size is impossible to achieve
Establish boundaries within which deviation from perfect form is allowed but still the design intent is fulfilled
Enable removability of components during assembly
Enable replace ability of components during assembly

34. Which is not a type of tolerance?

Quadrilateral
Bilateral
Unilateral

35. _________ refers to the closeness of a measured value to a standard Value

Proximity
Tolerance
Limits
Accuracy

36. In the below options, which correlates to the definition of limits?

a) Average and Maximum
b) Maximum and Minimum
c) Minimum and Average
d) Least and Average

37. In Limits, Fits and Engineering tolerances; What is expansion of the acronym MMC?

My Machine Campaign
Medium Material Condition
Most Material Cut
Maximum Material Condition

38. If the tolerance is allowed on both side of the basic size it is called _____________ tolerance.

Unit
Bilateral
Undivided
Biased

39. If the tolerance is allowed on one side of the basic size it is called _____________ tolerance.

Unit
Undivided
Unilateral
Under

40. The maximum and minimum permissible sizes within which the actual size of a component lies are called ___________.

Limits
Boundary
Allowance
Basic sizes

41. Which instrument measures liquid precipitation?

Rain gauge
Wind vane
Anemometer
Barometer

42. Which instrument measures temperature?

Psychrometer
Thermometer
Anemometer
Barometer

43. Which instrument measures air pressure?

Psychrometer
Thermometer
Anemometer
Barometer

44. The ___ the isobars on a map are to/from one another the _ the wind.

closer, slower
closer, faster
farther, faster

45. What are lines on a weather map connecting points of equal pressure?

Isotherms
Isoclines
Isobars
Isochrons

46. Which of the following is not data represented on a weather map?

temperature
precipitation
change in air pressure
traffic volume

47. What are lines on a weather map connecting points of equal temperature?

Isotherms
Isoclines
Isobars
Isochrons

48. BASE UNIT ONE EXAMPLE

AREA
VOLUME
DENSITY
METER

49. These are units of combination of two or more quantities

DERIVED UNITS
BASE UNIT
SUPPLEMENTARY UNIT
SPECIAL UNIT

50. •SI system is built on arbitrarily selected units called _____

DERIVED UNIT
BASE UNIT
SUPPLEMENTARY UNIT
NONE

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