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Worksheets150 сұрақ
Total questions: 150
Worksheet time: 1hrs 15mins
Name
Class
Date
1.
1. What is metrology?
a)
A) Study of materials
b)
B) Science of measurements and their methods
c)
C) Process of manufacturing
d)
D) Field of biology
e)
E) Everything is right
2.
2. Which international organization is responsible for standardization?
a)
A) WTO
b)
B) WHO
c)
C) ISO
d)
D) UN
e)
E) Everything is right
3.
3. The SI base unit for length is:
a)
A) Centimeter
b)
B) Meter
c)
C) Kilometer
d)
D) Millimeter
e)
E) Everything is right
4.
4. What is calibration?
a)
A) Repairing an instrument
b)
B) Comparing an instrument’s reading with a known standard
c)
C) Changing instrument design
d)
D) Discarding old instruments
e)
E) Everything is right
5.
5. What is measurement uncertainty?
a)
A) The exact error
b)
B) The range within which the true value is believed to lie
c)
C) Random noise only
d)
D) The measured value
e)
E) Everything is right
6.
6. The prefix “milli‑” denotes multiplication by:
a)
A) 10³
b)
B) 10⁻²
c)
C) 10⁻³
d)
D) 10²
e)
E) Everything is right
7.
7. The SI base unit for electric current is:
a)
A) Volt
b)
B) Ohm
c)
C) Ampere
d)
D) Coulomb
e)
E) Everything is right
8.
8. In standardization, a “norm” is:
a)
A) An experiment
b)
B) A rule or requirement
c)
C) A hypothesis
d)
D) A suggestion
e)
E) Everything is right
9.
9. Verification of instruments means:
a)
A) Discarding them
b)
B) Ensuring they give results within specified limits
c)
C) Changing design
d)
D) Advertising
e)
E) Everything is right
10.
10. Which is not an SI base quantity?
a)
A) Length
b)
B) Mass
c)
C) Temperature
d)
D) Velocity
e)
E) Everything is right
11.
11. The SI base unit for temperature is:
a)
A) Celsius
b)
B) Kelvin
c)
C) Fahrenheit
d)
D) Rankine
e)
E) Everything is right
12.
12. What are the main goals of standardization?
a)
A) Increase product compatibility
b)
B) Reduce trade barriers
c)
C) Ensure quality and safety
d)
D) All of the above
e)
E) Everything is right
13.
13. What is traceability in metrology?
a)
A) Tracking instrument location
b)
B) Following a chain of calibrations back to a standard
c)
C) Recording history
d)
D) Smuggling data
e)
E) Everything is right
14.
14. The SI unit for luminous intensity is:
a)
A) Lumen
b)
B) Lux
c)
C) Candela
d)
D) Watt
e)
E) Everything is right
15.
15. Which of these is a derived quantity?
a)
A) Length
b)
B) Time
c)
C) Force
d)
D) Temperature
e)
E) Everything is right
16.
16. What is a national standard?
a)
A) Standard adopted by a country
b)
B) Regional agreement
c)
C) Internal company rule
d)
D) International protocol
e)
E) Everything is right
17.
17. The SI unit for amount of substance is:
a)
A) Kilogram
b)
B) Mole
c)
C) Candela
d)
D) Ampere
e)
E) Everything is right
18.
18. Which body often conducts verification of instruments?
a)
A) Retail shops
b)
B) National metrology institutes
c)
C) Private individuals
d)
D) Local clubs
e)
E) Everything is right
19.
19. In which year was ISO founded?
a)
A) 1945
b)
B) 1947
c)
C) 1950
d)
D) 1960
e)
E) Everything is right
20.
20. The SI unit of force is:
a)
A) Joule
b)
B) Watt
c)
C) Newton
d)
D) Pascal
e)
E) Everything is right
21.
21. What does certification in standardization mean?
a)
A) Confirming compliance with standards
b)
B) Measuring quantities
c)
C) Publishing rules
d)
D) Only inspecting
e)
E) Everything is right
22.
22. The SI unit for pressure is:
a)
A) Bar
b)
B) Pascal
c)
C) Atmosphere
d)
D) Torr
e)
E) Everything is right
23.
23. The word “standard” derives from which language?
a)
A) French
b)
B) Latin
c)
C) German
d)
D) Greek
e)
E) Everything is right
24.
24. What does recalibration mean?
a)
A) First calibration
b)
B) Maintaining accuracy over time
c)
C) Discarding device
d)
D) Using it randomly
e)
E) Everything is right
25.
25. The SI unit for energy is:
a)
A) Joule
b)
B) Watt
c)
C) Newton
d)
D) Volt
e)
E) Everything is right
26.
26. The SI unit for electric charge is:
a)
A) Ampere
b)
B) Coulomb
c)
C) Volt
d)
D) Farad
e)
E) Everything is right
27.
27. How is confidence level in measurement expressed?
a)
A) As fraction
b)
B) As percent
c)
C) In units
d)
D) In seconds
e)
E) Everything is right
28.
28. The SI unit of frequency is:
a)
A) Meter
b)
B) Second
c)
C) Hertz
d)
D) Kelvin
e)
E) Everything is right
29.
29. The SI unit of power is:
a)
A) Joule
b)
B) Watt
c)
C) Volt
d)
D) Newton
e)
E) Everything is right
30.
30. Which is not a step in the measurement chain?
a)
A) Calibration
b)
B) Measurement
c)
C) Certification
d)
D) Analysis
e)
E) Everything is right
31.
31. What is the SI unit of electric potential difference?
a)
A) Volt
b)
B) Ampere
c)
C) Ohm
d)
D) Coulomb
e)
E) Everything is right
32.
32. The SI unit of capacitance is:
a)
A) Farad
b)
B) Henry
c)
C) Weber
d)
D) Tesla
e)
E) Everything is right
33.
33. What is resolution of an instrument?
a)
A) The smallest change it can detect
b)
B) The largest value it can measure
c)
C) The average error
d)
D) The calibration frequency
e)
E) Everything is right
34.
34. What is maximum permissible error (tolerance)?
a)
A) The allowed deviation from true value
b)
B) The exact error
c)
C) The calibration interval
d)
D) The instrument size
e)
E) Everything is right
35.
35. What is the concept of metrological traceability?
a)
A) Documented history of calibrations
b)
B) Calibration at home
c)
C) Using old instruments
d)
D) Random checking
e)
E) Everything is right
36.
36. What is a primary standard?
a)
A) A standard with highest accuracy
b)
B) A commercial instrument
c)
C) A local reference
d)
D) A measuring technique
e)
E) Everything is right
37.
37. The SI unit for frequency is:
a)
A) Hertz
b)
B) Meter
c)
C) Second
d)
D) Kelvin
e)
E) Everything is right
38.
38. The SI unit for magnetic flux is:
a)
A) Tesla
b)
B) Weber
c)
C) Henry
d)
D) Farad
e)
E) Everything is right
39.
39. What is bias in measurement?
a)
A) Random error
b)
B) Systematic error causing deviation from true value
c)
C) Instrument resolution
d)
D) Calibration procedure
e)
E) Everything is right
40.
40. The SI unit for magnetic flux density is:
a)
A) Tesla
b)
B) Weber
c)
C) Henry
d)
D) Farad
e)
E) Everything is right
41.
41. What does harmonization in standardization mean?
a)
A) Conflicting standards
b)
B) Aligning different standards to avoid conflicts
c)
C) Rejecting standards
d)
D) Developing new products
e)
E) Everything is right
42.
42. The SI unit for inductance is:
a)
A) Henry
b)
B) Farad
c)
C) Tesla
d)
D) Weber
e)
E) Everything is right
43.
43. What does “as‑found” condition refer to?
a)
A) Condition before adjustment
b)
B) Condition after calibration
c)
C) Ideal condition
d)
D) Measurement error
e)
E) Everything is right
44.
44. The SI unit of luminous flux is:
a)
A) Lumen
b)
B) Lux
c)
C) Candela
d)
D) Watt
e)
E) Everything is right
45.
45. What is a guard band in measurement?
a)
A) Safety margin to avoid wrong decisions
b)
B) Calibration device
c)
C) Measurement technique
d)
D) Error correction
e)
E) Everything is right
46.
46. What is the SI unit of solid angle?
a)
A) Steradian
b)
B) Radian
c)
C) Degree
d)
D) Lumen
e)
E) Everything is right
47.
47. The SI unit for radioactivity (activity) is:
a)
A) Becquerel
b)
B) Curie
c)
C) Sievert
d)
D) Gray
e)
E) Everything is right
48.
48. What is a sectoral standard?
a)
A) Standard applied to a specific industry
b)
B) General standard
c)
C) Regional standard
d)
D) National standard
e)
E) Everything is right
49.
49. The SI unit for absorbed dose is:
a)
A) Gray
b)
B) Sievert
c)
C) Becquerel
d)
D) Curie
e)
E) Everything is right
50.
50. What is interlaboratory comparison?
a)
A) Comparing results of different labs
b)
B) Using one lab only
c)
C) Ignoring standards
d)
D) Single instrument check
e)
E) Everything is right
51.
51. What is the role of a reference standard?
a)
A) To provide a known value for calibration
b)
B) To measure temperature
c)
C) To design instruments
d)
D) To store data
e)
E) Everything is right
52.
52. The SI unit for electric resistance is:
a)
A) Ohm
b)
B) Volt
c)
C) Ampere
d)
D) Watt
e)
E) Everything is right
53.
53. Which of these is NOT a characteristic of a good standard?
a)
A) Stability
b)
B) Reproducibility
c)
C) Accessibility
d)
D) Complexity
e)
E) Everything is right
54.
54. What is the purpose of a calibration certificate?
a)
A) To certify an instrument’s accuracy and traceability
b)
B) To repair instruments
c)
C) To sell instruments
d)
D) To describe manufacturing process
e)
E) Everything is right
55.
55. What is the difference between accuracy and precision?
a)
A) Accuracy is closeness to true value, precision is reproducibility
b)
B) They mean the same
c)
C) Accuracy relates to time, precision to length
d)
D) Precision is about calibration only
e)
E) Everything is right
56.
56. Which one is a method to reduce measurement uncertainty?
a)
A) Increase sample size
b)
B) Ignore errors
c)
C) Use old instruments
d)
D) Random guessing
e)
E) Everything is right
57.
57. What is a secondary standard?
a)
A) Calibrated against a primary standard
b)
B) Used only in manufacturing
c)
C) A standard not traceable
d)
D) A non-standard device
e)
E) Everything is right
58.
58. What is the fundamental difference between standardization and calibration?
a)
A) Standardization sets rules; calibration adjusts instruments
b)
B) Both mean the same
c)
C) Calibration sets rules; standardization measures
d)
D) Neither is related
e)
E) Everything is right
59.
59. What does “metrological confirmation” include?
a)
A) Calibration, verification, and maintenance
b)
B) Instrument design
c)
C) Ignoring errors
d)
D) Manufacturing process
e)
E) Everything is right
60.
60. The SI base unit for time is:
a)
A) Minute
b)
B) Hour
c)
C) Second
d)
D) Day
e)
E) Everything is right
61.
61. Which quantity is NOT a base quantity in the SI system?
a)
A) Length
b)
B) Mass
c)
C) Velocity
d)
D) Time
e)
E) Everything is right
62.
62. What is an accredited laboratory?
a)
A) A lab recognized for competence by an accreditation body
b)
B) A private shop
c)
C) A government office
d)
D) A training center
e)
E) Everything is right
63.
63. What is a calibration interval?
a)
A) Time between two calibrations
b)
B) Time to manufacture an instrument
c)
C) Duration of test
d)
D) Time to repair
e)
E) Everything is right
64.
64. Which of the following is an example of a physical quantity?
a)
A) Mass
b)
B) Quality
c)
C) Opinion
d)
D) Efficiency
e)
E) Everything is right
65.
65. What does “metrological traceability” require?
a)
A) An unbroken chain of comparisons to a standard
b)
B) Random checks
c)
C) Ignoring calibration
d)
D) Using unverified instruments
e)
E) Everything is right
66.
66. The SI unit for force is:
a)
A) Newton
b)
B) Watt
c)
C) Joule
d)
D) Pascal
e)
E) Everything is right
67.
67. What is the function of a standard operating procedure (SOP) in metrology?
a)
A) To describe step-by-step calibration and measurement processes
b)
B) To design products
c)
C) To sell instruments
d)
D) To calculate costs
e)
E) Everything is right
68.
68. What is a tolerance in measurement?
a)
A) The permissible limit of variation
b)
B) The exact value
c)
C) The measurement error
d)
D) The measuring instrument
e)
E) Everything is right
69.
69. What is the difference between systematic and random errors?
a)
A) Systematic errors are consistent, random errors vary unpredictably
b)
B) Both are the same
c)
C) Random errors are avoidable
d)
D) Systematic errors never affect results
e)
E) Everything is right
70.
70. The SI unit for electric capacitance is:
a)
A) Farad
b)
B) Henry
c)
C) Weber
d)
D) Tesla
e)
E) Everything is right
71.
71. What is the purpose of a measurement uncertainty budget?
a)
A) To list all sources of uncertainty and quantify them
b)
B) To buy new instruments
c)
C) To ignore small errors
d)
D) To store measurement data
e)
E) Everything is right
72.
72. What is the name of the system that defines the seven base units of measurement?
a)
A) Metric system
b)
B) Imperial system
c)
C) International System of Units (SI)
d)
D) US customary system
e)
E) Everything is right
73.
73. What is the SI unit for luminous intensity?
a)
A) Lux
b)
B) Candela
c)
C) Lumen
d)
D) Watt
e)
E) Everything is right
74.
74. Which type of error can be reduced by repeated measurements?
a)
A) Random error
b)
B) Systematic error
c)
C) Both
d)
D) None
e)
E) Everything is right
75.
75. The SI unit for magnetic field strength is:
a)
A) Tesla
b)
B) Weber
c)
C) Henry
d)
D) Farad
e)
E) Everything is right
76.
76. What is the meaning of “validation” in metrology?
a)
A) Confirmation that a method or instrument produces valid results
b)
B) Calibration process
c)
C) Repairing instruments
d)
D) Buying new equipment
e)
E) Everything is right
77.
77. Which of the following is NOT part of the measurement process?
a)
A) Calibration
b)
B) Verification
c)
C) Manufacturing
d)
D) Data analysis
e)
E) Everything is right
78.
78. What is an international standard?
a)
A) Standard accepted and used worldwide
b)
B) Local rule
c)
C) Company procedure
d)
D) Regional agreement
e)
E) Everything is right
79.
79. The SI unit for temperature on the Kelvin scale is:
a)
A) Celsius
b)
B) Kelvin
c)
C) Fahrenheit
d)
D) Rankine
e)
E) Everything is right
80.
80. What is the purpose of a quality management system in metrology?
a)
A) To ensure consistent measurement quality and reliability
b)
B) To sell more products
c)
C) To reduce costs only
d)
D) To monitor employees
e)
E) Everything is right
81.
81. What is the function of a calibration label on an instrument?
a)
A) To show calibration date and next due date
b)
B) To indicate price
c)
C) To display manufacturer
d)
D) To show warranty period
e)
E) Everything is right
82.
82.What is the physical quantity measured in volts? Everything is right
a)
A) Electric current
b)
B) Electric potential difference
c)
C) Resistance
d)
D) Power
e)
E) Everything is right
83.
83. What is the symbol for the unit of electric current?
a)
A) V
b)
B) A
c)
C) Ω
d)
D) W
e)
E) Everything is right
84.
84. What does “repeatability” mean in measurement?
a)
A) The ability to get the same result under unchanged conditions
b)
B) Changing results randomly
c)
C) First calibration
d)
D) Measurement error
e)
E) Everything is right
85.
85. Which one of these is an example of a derived unit?
a)
A) Meter
b)
B) Kilogram
c)
C) Newton
d)
D) Second
e)
E) Everything is right
86.
86. What is the SI unit for power?
a)
A) Watt
b)
B) Joule
c)
C) Volt
d)
D) Ampere
e)
E) Everything is right
87.
87. What does “uncertainty” in measurement mean?
a)
A) The doubt about the exactness of the measurement result
b)
B) The instrument error
c)
C) The measurement value
d)
D) The calibration date
e)
E) Everything is right
88.
88. Which organization publishes the International Vocabulary of Metrology (VIM)?
a)
A) ISO
b)
B) BIPM
c)
C) IEC
d)
D) OIML
e)
E) Everything is right
89.
89. What is the meaning of “calibration drift”? Everything is right
a)
A) Gradual change in instrument accuracy over time
b)
B) Sudden failure
c)
C) Initial calibration
d)
D) Using the instrument improperly
e)
E) Everything is right
90.
90. What is a “reference material” in metrology?
a)
A) A substance with known properties used for calibration
b)
B) Raw material for manufacturing
c)
C) Material for training
d)
D) A standard instrument
e)
E) Everything is right
91.
91. The SI unit for pressure is:
a)
A) Pascal
b)
B) Bar
c)
C) Atmosphere
d)
D) Torr
e)
E) Everything is right
92.
92. Which of the following is a method of expressing measurement uncertainty?
a)
A) Confidence interval
b)
B) Price
c)
C) Weight
d)
D) Length
e)
E) Everything is right
93.
93. What is the function of an uncertainty budget?
a)
A) To identify and quantify all uncertainty sources
b)
B) To increase errors
c)
C) To measure length
d)
D) To calibrate instruments
e)
E) Everything is right
94.
94. What is “metrological control”?
a)
A) Supervision and regulation of measurements and measuring instruments
b)
B) Product testing
c)
C) Sales regulation
d)
D) Accounting process
e)
E) Everything is right
95.
95. Which unit measures electric inductance?
a)
A) Henry
b)
B) Farad
c)
C) Tesla
d)
D) Weber
e)
E) Everything is right
96.
96. The SI unit of radioactivity (activity) is:
a)
A) Becquerel
b)
B) Curie
c)
C) Gray
d)
D) Sievert
e)
E) Everything is right
97.
97. What is a “calibration interval”?
a)
A) Time period between two calibrations
b)
B) Duration of measurement
c)
C) Instrument life
d)
D) Manufacturing time
e)
E) Everything is right
98.
98. What is the primary purpose of standardization?
a)
A) To ensure compatibility, safety, and quality
b)
B) To make products more expensive
c)
C) To reduce production speed
d)
D) To ignore regulations
e)
E) Everything is right
99.
99. Which quantity is measured in amperes?
a)
A) Voltage
b)
B) Electric current
c)
C) Resistance
d)
D) Power
e)
E) Everything is right
100.
100. What does the term “uncertainty” include?
a)
A) All possible errors and variations affecting a measurement
b)
B) Only systematic errors
c)
C) Only random errors
d)
D) Instrument specifications
e)
E) Everything is right
101.
101. What is the SI base unit for mass?
a)
A) Gram
b)
B) Kilogram
c)
C) Pound
d)
D) Ton
e)
E) Everything is right
102.
102. What is the function of an international standard organization?
a)
A) To establish global standards and harmonize measurements
b)
B) To sell products
c)
C) To monitor trade
d)
D) To create local laws
e)
E) Everything is right
103.
103. Which device is used to measure temperature?
a)
A) Ammeter
b)
B) Thermometer
c)
C) Barometer
d)
D) Voltmeter
e)
E) Everything is right
104.
104. What does the term “calibration” mean?
a)
A) Adjustment of instrument to meet standard values
b)
B) Measurement of length
c)
C) Manufacture of devices
d)
D) Ignoring errors
e)
E) Everything is right
105.
105. What is the SI unit for electric charge?
a)
A) Coulomb
b)
B) Ampere
c)
C) Volt
d)
D) Ohm
e)
E) Everything is right
106.
106. The organization responsible for the SI system is:
a)
A) ISO
b)
B) BIPM
c)
C) WHO
d)
D) IEC
e)
E) Everything is right
107.
107. What is the process of ensuring a measuring instrument gives correct results?
a)
A) Calibration
b)
B) Manufacturing
c)
C) Designing
d)
D) Advertising
e)
E) Everything is right
108.
108. Which of the following is NOT a base unit of the SI system?
a)
A) Meter
b)
B) Kilogram
c)
C) Watt
d)
D) Second
e)
E) Everything is right
109.
109. What is a standard operating procedure (SOP)?
a)
A) Document describing the proper steps of a process
b)
B) A type of instrument
c)
C) A measuring unit
d)
D) A test method
e)
E) Everything is right
110.
110. The SI unit of luminous flux is:
a)
A) Lumen
b)
B) Candela
c)
C) Lux
d)
D) Watt
e)
E) Everything is right
111.
111. What is the SI unit of magnetic flux?
a)
A) Tesla
b)
B) Weber
c)
C) Henry
d)
D) Farad
e)
E) Everything is right
112.
112. What is the term for the smallest change an instrument can detect?
a)
A) Accuracy
b)
B) Resolution
c)
C) Precision
d)
D) Calibration
e)
E) Everything is right
113.
113. What is the purpose of measurement uncertainty evaluation?
a)
A) To estimate the doubt about measurement results
b)
B) To increase errors
c)
C) To ignore measurement results
d)
D) To discard instruments
e)
E) Everything is right
114.
114. The SI unit for pressure is:
a)
A) Pascal
b)
B) Bar
c)
C) Atmosphere
d)
D) Torr
e)
E) Everything is right
115.
115. What does “traceability” mean in metrology?
a)
A) Linking measurements to national or international standards
b)
B) Using uncalibrated instruments
c)
C) Random sampling
d)
D) Ignoring errors
e)
E) Everything is right
116.
116. What is the SI unit for luminous intensity?
a)
A) Lux
b)
B) Candela
c)
C) Lumen
d)
D) Watt
e)
E) Everything is right
117.
117. What does “verification” of an instrument involve?
a)
A) Checking conformity to specifications without adjustment
b)
B) Calibration adjustment
c)
C) Ignoring measurements
d)
D) Repairing instruments
e)
E) Everything is right
118.
118. Which SI unit measures electric current?
a)
A) Volt
b)
B) Ampere
c)
C) Ohm
d)
D) Watt
e)
E) Everything is right
119.
119. What is the term for the reproducibility of measurements under the same conditions?
a)
A) Accuracy
b)
B) Precision
c)
C) Resolution
d)
D) Sensitivity
e)
E) Everything is right
120.
120. What is the base SI unit for time?
a)
A) Second
b)
B) Minute
c)
C) Hour
d)
D) Day
e)
E) Everything is right
121.
121. The process of comparing a measurement instrument to a known standard is called:
a)
A) Verification
b)
B) Calibration
c)
C) Validation
d)
D) Adjustment
e)
E) Everything is right
122.
122. Which of the following is NOT a characteristic of a good measurement?
a)
A) Accuracy
b)
B) Precision
c)
C) Ambiguity
d)
D) Reliability
e)
E) Everything is right
123.
123. What is the name of the document that certifies compliance with standards?
a)
A) Calibration certificate
b)
B) Invoice
c)
C) Manual
d)
D) Warranty
e)
E) Everything is right
124.
124. What is the SI unit for energy?
a)
A) Watt
b)
B) Joule
c)
C) Newton
d)
D) Pascal
e)
E) Everything is right
125.
125. What is the term for the amount of a substance?
a)
A) Mole
b)
B) Liter
c)
C) Gram
d)
D) Kilogram
e)
E) Everything is right
126.
126. What is the difference between a primary and secondary standard?
a)
A) Primary standards have highest accuracy and are directly traceable to SI units
b)
B) Secondary standards are more accurate
c)
C) They are the same
d)
D) Secondary standards are not traceable
e)
E) Everything is right
127.
127. What is the SI unit for electric resistance?
a)
A) Ohm
b)
B) Volt
c)
C) Ampere
d)
D) Watt
e)
E) Everything is right
128.
128. Which of these is a derived unit?
a)
A) Meter
b)
B) Kilogram
c)
C) Newton
d)
D) Second
e)
E) Everything is right
129.
129. What is the role of international standards?
a)
A) Facilitate global trade and ensure compatibility
b)
B) Increase prices
c)
C) Localize production
d)
D) Prevent trade
e)
E) Everything is right
130.
130. What is the smallest unit prefix in the SI system?
a)
A) Kilo-
b)
B) Milli-
c)
C) Nano-
d)
D) Mega-
e)
E) Everything is right
131.
131. The SI unit for frequency is:
a)
A) Hertz
b)
B) Meter
c)
C) Second
d)
D) Kelvin
e)
E) Everything is right
132.
132. What does a calibration label indicate?
a)
A) Date of calibration and next calibration due date
b)
B) Price of instrument
c)
C) Manufacturer name
d)
D) Instrument model
e)
E) Everything is right
133.
133. What is “repeatability” in measurement?
a)
A) Ability to get the same result under the same conditions
b)
B) Changing results
c)
C) First calibration
d)
D) Random error
e)
E) Everything is right
134.
134. What is the SI unit for pressure?
a)
A) Pascal
b)
B) Bar
c)
C) Atmosphere
d)
D) Torr
e)
E) Everything is right
135.
135. Which organization develops international standards?
a)
A) ISO
b)
B) WHO
c)
C) WTO
d)
D) UNICEF
e)
E) Everything is right
136.
136. What is an example of a measurement instrument?
a)
A) Thermometer
b)
B) Computer
c)
C) Printer
d)
D) Calculator
e)
E) Everything is right
137.
137. The SI base unit for length is:
a)
A) Meter
b)
B) Kilometer
c)
C) Centimeter
d)
D) Millimeter
e)
E) Everything is right
138.
138. What does “accuracy” refer to in measurement?
a)
A) Closeness of measurement to true value
b)
B) Number of measurements
c)
C) Size of instrument
d)
D) Calibration date
e)
E) Everything is right
139.
139. What is a “derived quantity”?
a)
A) Quantity obtained from base quantities by mathematical relations
b)
B) Basic quantity
c)
C) Standard unit
d)
D) Measurement error
e)
E) Everything is right
140.
10. What is “calibration uncertainty”?
a)
A) Doubt about the calibration result accuracy
b)
B) Size of instrument
c)
C) Price of device
d)
D) Measurement value
e)
E) Everything is right
141.
141. What is the role of national metrology institutes (NMIs)?
a)
A) Maintain national measurement standards and provide calibration services
b)
B) Manufacture instruments
c)
C) Sell equipment
d)
D) Train employees
e)
E) Everything is right
142.
142. What is the SI unit of electric potential difference?
a)
A) Volt
b)
B) Ampere
c)
C) Ohm
d)
D) Watt
e)
E) Everything is right
143.
143. What is the term for a quantity that can be measured?
a)
A) Physical quantity
b)
B) Instrument
c)
C) Standard
d)
D) Unit
e)
E) Everything is right
144.
144. What does “uncertainty budget” mean?
a)
A) A list and quantification of all sources of measurement uncertainty
b)
B) Financial budget for equipment
c)
C) Time schedule
d)
D) Measurement device
e)
E) Everything is right
145.
145. What is a “primary standard”?
a)
A) A standard realized with the highest accuracy without reference to other standards
b)
B) A commercial instrument
c)
C) A standard used only in industry
d)
D) A secondary reference
e)
E) Everything is right
146.
147. What is the SI unit for luminous intensity?
a)
A) Candela
b)
B) Lux
c)
C) Lumen
d)
D) Watt
e)
E) Everything is right
147.
146. What is “interlaboratory comparison”?
a)
A) Comparing measurement results between different laboratories
b)
B) Testing a single instrument
c)
C) Ignoring calibration
d)
D) Manufacturing instruments
e)
E) Everything is right
148.
149. What does “metrological control” mean?
a)
A) Supervision and regulation of measurements and measuring instruments
b)
B) Manufacturing process
c)
C) Sales
d)
D) Marketing
e)
E) Everything is right
149.
148. What is the SI base unit for amount of substance?
a)
A) Mole
b)
B) Liter
c)
C) Gram
d)
D) Kilogram
e)
E) Everything is right
150.
150. What is the SI unit for electric capacitance?
a)
A) Farad
b)
B) Henry
c)
C) Tesla
d)
D) Weber
e)
E) Everything is right
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