Tests in the discipline metrology physical and chemical measurements. Metrology, standardization and certification tests. By execution for different climatic regions

1. Indicate the purpose of metrology: 1) ensuring the uniformity of measurements with the necessary and required accuracy; +

2) development and improvement of means and methods of measurement to increase their accuracy

3) development of a new and improvement of the existing legal and regulatory framework;

4) improvement of standards of units of measurement to improve their accuracy;

5) improvement of methods for transferring units of measurement from the standard to the measured object.

2. Specify the tasks of metrology:

1) ensuring the uniformity of measurements with the necessary and required accuracy;

2) development and improvement of means and methods of measurements; increasing their accuracy;+

3) development of a new and improvement of the existing legal and regulatory framework;+

4) improvement of measurement standards to improve their accuracy;+

5) improvement of methods for transferring units of measurement from the standard to the measured object; +

6) establishment and reproduction in the form of standards of units of measurement.+

3. Describe the principle of metrology "uniformity of measurements":

1) the development and / or application of metrological tools, methods, techniques and techniques is based on scientific experiment and analysis;

2) the state of measurements, in which their results are expressed in units of quantities approved for use in the Russian Federation, and the measurement accuracy indicators do not go beyond the established limits; +

3) the state of the measuring instrument, when they are graduated in legal units and their metrological characteristics comply with the established standards.

4. Which of the following methods ensure the unity of measurement:

1) the use of legal units of measurement; +

2) determination of systematic and random errors, taking them into account in the measurement results;

3) the use of measuring instruments, the metrological characteristics of which comply with established standards; +

4) carrying out measurements by competent specialists.

5. Which section is devoted to the study of the theoretical foundations of metrology:

1) legal metrology;

2) practical metrology;

3) applied metrology;

4) theoretical metrology;+

6. Which section considers the rules, requirements and norms that ensure the regulation and control of the uniformity of measurements:

1) legal metrology;+

2) practical metrology;

3) applied metrology;

4) theoretical metrology;

5) experimental metrology.

7. Specify metrology objects:

1) Rostekhregulirovanie;

2) metrological services;

3) metrological services of legal entities;

4) non-physical quantities;+

5) products;

6) physical quantities.+

8. What is the name of the qualitative characteristic of a physical quantity:

1) value:

size 4;

5) dimension+

9. What is the name of the quantitative characteristic of a physical quantity:

1) value;

2) a unit of physical quantity;

3) the value of a physical quantity;

4) size;+

5) dimension.

10. What is the name of the value of a physical quantity, which would ideally reflect the corresponding physical quantity in qualitative and quantitative terms:

1) valid;

2) desired;

3) true;+

4) nominal;

5) actual.

11. What is the name of the value of a physical quantity found experimentally and so close to the true value that it can be replaced for the task at hand:

1) real;+

2) desired;

3) true;

4) nominal;

5) actual.

12. What is the name of the fixed value of a quantity, which is taken as a unit of a given quantity and is used to quantify quantities homogeneous with it:

1) value;

2) unit of magnitude;+

3) the value of a physical quantity;

4) indicator:

5) size.

13. What is the name of the unit of a physical quantity, conditionally accepted as independent of other physical quantities:

1) off-system,

2) valley;

3) systemic;

4) multiple;

5) main.+

14. What is the name of the unit of a physical quantity, defined through the basic unit of a physical quantity:

1) main;

2) derivative;+

3) systemic;

4) multiple;

5) long.

15. What is the name of the unit of a physical quantity that is an integer number of times greater than the system unit of a physical quantity:

1) off-system;

2) valley;

3) multiple;+

4) main;

5) derivative.

16. What is the name of the unit of a physical quantity an integer number of times less than the system unit of a physical quantity:

1) off-system;

2) long; +

3) multiple;

4) main;

5) derivative.

17. Name the subjects of the state metrological service.

1) ROSTECHREGULATION+

2) State Scientific Metrological Center;+

3) metrological service of industries;

4) metrological service of enterprises;

5) Russian calibration service;

6) centers of standardization, metrology and certification.+

18. Define the concept of "measurement technique":

1) study and confirmation of the compliance of measurement procedures (methods) with the established metrological requirements for measurements;

2) a set of specifically described operations, the implementation of which ensures the receipt of measurement results with established accuracy indicators; +

3) a set of operations performed in order to determine the actual values of the metrological characteristics of measuring instruments;

4) a set of operations performed to determine the quantitative value of a quantity;

5) a set of measuring instruments designed to measure the same quantities, expressed in the same units of quantities, based on the same principle of operation, having the same design and manufactured according to the same technical documentation.

19. What is the name of the analysis and assessment of the correctness of the establishment and observance of metrological requirements in relation to the object subjected to examination:

1) accreditation of legal entities and individual entrepreneurs to perform work and / or provide services in the field of ensuring the uniformity of measurements;

2) certification of measurement techniques (methods);

3) state metrological supervision;

4) metrological expertise;+

5) verification of measuring instruments;

6) approval of the type of reference materials or type of means

measurements.

20. What is the name of the set of operations performed to determine the quantitative value of a quantity:

1) value;

2) the value of the quantities;

3) measurement;+

4) calibration;

5) verification.

21. Specify the types of measurements according to the method of obtaining information:

1) dynamic;

2) indirect;+

3) multiple;

4) single;

5) straight;+

6) joint;+

7) cumulative.+

22. Specify the types of measurements by the amount of measurement information:

1) dynamic;

2) indirect;

3) multiple;+

4) single;+

5) straight;

6) static.

23. Specify the types of measurement according to the nature of the change in the information received during the measurement process:

1) dynamic;+

2) indirect;

3) multiple;

4)single

6) static.+

24. Specify the types of measurements in relation to the main units

1) absolute+

2) dynamic

3) indirect

4) relative +

6) static

25. In what types of measurements the desired value of the quantity is obtained directly from the measuring instrument:

1) with dynamic;

2) with indirect;

3) with multiple;

4) with single;

5) with straight lines; +

6) at static.

26. Indicate the types of measurements in which the actual values of several quantities of the same name are determined, and the value of the sought value is found by solving the system of equations:

1) differential;

3) joint;

4) cumulative;+

5) comparative.

27. Indicate the types of measurements in which the actual values of several inhomogeneous quantities are determined to find the functional relationship between them:

1) transformative;

3) joint;+

4) cumulative;

5) comparative

28. Specify the types of measurements in which the number of measurements is equal to the number of measured values:

1) absolute;

2) indirect;

3) multiple;

4) single;+

5) relative

6) straight.

29. What measuring instruments are designed to reproduce and / or store a physical quantity:

1) material measures; +

2) indicators;

3) measuring instruments;

4) measuring systems;

5) measuring installations;

6) measuring transducers;

7) standard samples of materials and substances;

8) standards.

30. What measuring instruments are a combination of measuring transducers and a reading device:

1) material measures;

2) indicators;

3) measuring instruments;+

4) measuring systems;

5) measuring installations.

31. What measuring instruments consist of functionally combined measuring instruments and auxiliary devices, territorially separated and connected by communication channels:

1) material measures;

2) indicators;

3) measuring instruments;

4) measuring systems;+

5) measuring installations;

6)Measuring transducers

32. What measuring instruments consist of functionally combined measuring instruments and auxiliary devices assembled in one place:

1) measuring instruments;

2) measuring systems;

3) measuring installations; +

4) measuring transducers;

5) standards.

33. Discovery is:

1) the property of the measured object, which is quantitatively common for all objects of the same name, but individual in quantitative terms;

2) comparison of an unknown quantity with a known one and the expression of the first through the second in a multiple or fractional ratio;

3) establishing the qualitative characteristics of the desired physical quantity; +

4) establishment of quantitative characteristics of the desired physical quantity.

34. What technical means are designed to detect physical properties:

1) material measures;

2) measuring instruments;

3) measuring systems;

4)indicators;+

5) Means of measurement.

35. Specify the normalized metrological characteristics of measuring instruments:

1) indication range;+

2) measurement accuracy; +

3) unity of measurements;

4) measurement threshold;

5) reproducibility;

6) error.+

36. What is the name of the scale value area, limited by the initial and final values:

1) measurement range;

2) indication range;+

3) error;

4) sensitivity threshold;

5) price division of the scale.

37. What is the name of the ratio of the change in the signal at the output of the measuring device to the change in the measured value that causes it:

1) measurement range;

2) indication range;

3) sensitivity threshold;

4) the price of division of the scale;

5) sensitivity.+

38. What are the technical means designed to reproduce, store and transmit a unit of magnitude:

1) material measures;

2) indicators;

4) standard samples of materials and substances;

5) standards.+

39. Specify the means of verification of technical devices:

1) measuring systems;

2) measuring installations;

3) measuring transducers;

4) gauges;

5) standards.+

40. What are the requirements for standards:

1) dimension;

2) error;

3) immutability;+

4) accuracy;

5) reproducibility;+

6) comparability.+

41. Which standards transfer their sizes to secondary standards:

1) international standards;

2) secondary standards;

3) state primary standards, +

4) gauges;

5) working standards;

42. What is the fundamental difference between verification and calibration:

1) mandatory character;+

2) voluntary nature;

3) declarative nature;

4) there is no correct answer.

43. What standards transmit information about the dimensions of the working measuring instruments:

1) state primary standards;

2) state secondary standards;

3) gauges;

4) international standards;

5) working measuring instruments;+

6) working standards.

44. What is the name of the set of operations performed in order to confirm the compliance of measuring instruments with metrological requirements:

1) verification;+

2) calibration;

3) accreditation;

4) certification;

5) licensing;

6) control;

7) supervision.

45. Calibration is:

1) a set of operations performed in order to confirm the compliance of measuring instruments with metrological requirements;

2) a set of fundamental regulatory documents designed to ensure the uniformity of measurements with the required accuracy;

3) A set of operations performed in order to determine the actual values of the metrological characteristics of measuring instruments.+

46. What are the alternative results of verification of measuring instruments:

1) verification mark;

2) verification certificate;

3) confirmation of suitability for use; +

4) notice of unsuitability;

5) recognition of unsuitability for use.+

47. Specify the ways to confirm the suitability of the measuring instrument for use:

1) application of a verification mark; +

2) application of the type approval mark;

3) issuance of a notice of unsuitability;

4) issuance of a verification certificate;+

5) issuance of a type approval certificate.

Tutorial

by discipline

MINISTRY OF EDUCATION AND SCIENCE OF THE RUSSIAN FEDERATION MINISTRY OF EDUCATION OF THE MOSCOW REGION

GOU VPO MO

"MOSCOW STATE REGIONAL SOCIO-HUMANITARIAN INSTITUTE"

"Programmed Control Tests"

by discipline

"STANDARDIZATION, METROLOGY AND CERTIFICATION"

Tutorial

for students studying in the specialty 080401 "Commodity science and examination of goods (in the field of production and circulation of agricultural raw materials and food products)"

Reviewer:

Candidate of Agricultural Sciences, Associate Professor Kovalenko A.S.

U 91 Textbook Tests of programmed control in the discipline "Standardization, metrology and certification" for the specialty commodity science and examination of goods / Moscow State Social and Humanitarian Institute; comp. Illarionov V.S. - Kolomna: MGOSGI. 2011 - 84 p.

The textbook Tests of programmed control in the discipline "Standardization, metrology and certification" for the specialty commodity science and examination of goods was developed with the aim of teaching students to test, using the methodology of the Internet exam in the discipline "Standardization, metrology and certification" for the specialty 080401 - Commodity science and examination of goods (according to areas of application) on the basis of the discipline program developed by the Department of Educational Programs and Professional Education Standards of the Ministry of Education and Science of the Russian Federation.

Textbook Tests of programmed control in the discipline "Standardization, metrology and certification" is intended for students of the Faculty of Economics

Moscow	state	social and humanitarian
institute,	students in the specialty
Commodity research and examination of goods (by areas of application).
		UDC 380 (075.8)
		BBC 65.42ya73
	© GOU VPO MO "Moscow
	state		social
	Humanitarian Institute", 2011

EXPLANATORY NOTE

These tests of programmed control are intended for self-testing of knowledge and intermediate certification of students in the discipline "Standardization, metrology and certification" for the specialty of commodity science and examination of goods, which is carried out in the form of computer testing of students and is aimed at verifying compliance with the requirements of the State Educational Standards for Vocational Education.

This testing of students was developed in conjunction with educational programs using the Internet environment in off-line or on-line mode. The tests will allow you to objectively assess the degree of compliance of the content and level of students' training with the requirements of state educational standards.

	INTERNET EXAM 2011 TESTS
	Questions and Suggested Answers
	METROLOGY 50 questions
	When rechecking parts, the measurement error is not
	must exceed ______ margin of error,
	allowed upon acceptance.




	When controlling linear dimensions, random error
	measurements should not exceed the permissible
	measurement errors.




	Manifestation of a property in relation to order and equivalence
	defined for a physical quantity
	The strength of the electric current
	earthquake forces

	Temperatures in Celsius
	The electrical power P is determined by the results
	measurement of voltage drop U=240±5 V and current strength

	I \u003d 5 ± 0.1A. P = U-I. True value limits
	powers are equal...
	1190.7W ≤P≤ 1208.7W
	1161W ≤P≤ 1239W
	1161.3W ≤P≤ 1190.7W
	1191W ≤R≤ 1209W
	Intangible services are valued…
	sociological method
	Not assessed for certification
	Expert method
	With the use of technical means
	certificate
	Number of direct measurements required for
	reducing the dispersion range of the estimate of the true
	3 times the value is...




	Weighted coefficients of the weighted average algorithm
	estimation of the true value in several series of measurements
	are taken equal at ...
	Equivalence and independence of results
	measurements
	Unequal accuracy and interdependence of results
	measurements
	Measurements made with different accuracy
	Scattering of individual results
	To check the safety of state standards and
	replacing them in case of damage are intended ...
	Comparison standards
	Witness standards
	Working standards
	Copy references

Specify the measurement limits of the measuring instruments of this
type with equal ranges of indications from those given in
table:
	lower limit		Upper limit





5. From +5 to +50
3. From +5 to +25
1. From -25 to +25
4. From 0 to +50
2. From 0 to +25
	wood thickness measurement
caliper is 49 mm. root mean square
readout deviation ζ to =0.5 mm. Wear error
sponge caliper			s = -0.8 mm. Trusted
boundaries for the true thickness value with
probability Р=0.9973 (tp=3) will be:
47.5 mm≤ h ≤ 50.5 mm.tp= 3
48.3 mm≤ h ≤ 51.3 mm, P=0.9973
46.7 mm ≤ h ≤ 49.7 mm. P=0.9973
47.7 mm ≤ h ≤ 50.3 mm. P=0.9973
	measuring room temperature thermometer
shows 28 °C. Thermometer calibration error
	°C. Standard deviation of readings
σt \u003d 0.3 ° С. Confidence interval for true value
temperature with probability Р=0.9973 (tp=3) is equal to …
Т = 28.0±0.4 °С, Р=0.9973
Т = 27.5±0.9 °С, Р=0.9973
Т = 28.5±0.8 °C, Р=0.9973
T = 28.0±0.9°C, tp =3
With repeated measurement of the sip F, values are obtained in
		265; 267; 261; 266; 264; 267.
Confidence interval for the true value of the force with
probability Р=0.90 (tp=1.86) is equal to …
F=267±6H, P=0.90
F = 266±6 N, P=0.90
F=267±2H, tp=l.86
F= 266 ± 2H, P=0.90

The accuracy class (1.0) wattmeter shows 200 watts.
The measurement results are
-(200±0.5)W
200 W ± 1%
-(200±1.0)W
-(100±2.0)W
-(200±2.0)W
Sensitivity	measuring	converter
microdisplacements is equal to:


1.5/30 V/µm


The measure produces a signal with a value of 1.0. Measuring
the device shows 1.1. Relative error
measurement δ, expressed as a percentage, will be equal to ...
-δ=+100%
-δ=+1.0%
-δ = +1.1%
-δ=+10%
Ammeter with measurement limits 0 ... 10 A shows 8
A. The error from connecting the ammeter to the circuit δs = -
0.2 A. Standard deviation of readings
instrument σI = 0.3 A. Confidence interval for the true
the value of the measured current strength in the circuit		with probability
Р=0.9544 (tp=2) is equal to …
I= 8.0±0.5 A, P=0.9544
I= 8.2±0.6 A, P=0.9544
I= 7.8±0.6 A, P=0.9544
I= 8.2±0.3 A, P=0.9544
In case of damage to the verification mark, seal and loss
documents confirming the passage of the means
measurements of periodic verification, it is subjected to
verification...
Expert
Extraordinary
Inspection
Primary

According to the degree of conditional independence from other quantities
distinguish sizes...
Absolute
Main
relative

Verification schemes governing the transfer
information about the size of a physical quantity unit
fleet of measuring instruments in the country is called ...
State
Workers
Local
Departmental
After the release of the measuring device, verification is carried out

Inspection
main
Primary
periodic
Indirect measurements apply:
In order to reduce the influence of subjective factors
errors
If direct measurements are not possible
To simplify the processing of experimental data
In order to reduce the number of measuring instruments
The difference between the readings of measuring instruments and
the true (actual) value of the measured
quantities are called...
Measurement error
Sensitivity
deviation
The error of measuring instruments
Secondary standards (copy standards) are intended for…
Graduation and verification of working measuring instruments
Unit size transfers from primary
working standards
Unit size transfers from working standards
working measuring instruments
Playing a value of a certain size
Main	objects	state
ensuring the uniformity of measurements are:
Occupational safety standards

Measurement techniques

Units of physical quantities

Quality indicators parameters

Program documentation systems

One of the basic postulates of metrology says: "counting

is…"

Relative value

Constant value

random number

variable

Units of physical quantities are divided into ...

Derivatives

quantitative

Main

quality

According to the method of obtaining information, measurements are divided

Static and dynamic

Absolute and relative

Single and Multiple

Direct, indirect, cumulative and joint

The type of measuring instruments after approval is entered into

State…...

Form

Log

Standards body

Basic units of the system of physical quantities

are…

Kilogram

The choice of measuring instruments is determined ...

Measured quantity

Reducing the cost of manufacturing measuring instruments

Convergence of the measurement result

The required accuracy of the result of changes

Verification is granted...

Accreditation bodies

Accredited metrological services

1. Define a measuring transducer (sensor)

a) a technical tool designed to generate measurement information in a form accessible to perception by an observer (operator)

b) a technical means that is used to convert a measured value into another value or a signal of measurement information, convenient for processing, storage, indication or transmission and having normalized metrological characteristics

c) a technical means for converting non-electric energy into electrical energy

d) a technical tool designed for measurements

2. Relative error

a) measurement error, expressed as the ratio of the absolute measurement error to the actual value of the measured quantity

b) measurement error, expressed as the ratio of the absolute measurement error to the measured value of the measured quantity

c) measurement error, expressed as the ratio of the absolute measurement error to the actual or measured value of the measured quantity

d) measurement error, expressed as the difference between the measured and the true value of the measured quantity

3. Measuring mechanisms of ratiometers

indicate the figure number corresponding to the design of the ratiometer

a) A b) B c) C d) all

4. Physical quantity

a) expressed quantitatively as a specified number of established units of measure

b) a property that is qualitatively common for a variety of objects, physical systems, their states and processes occurring in them, but individual in quantitative terms for each of them

c) quantities inherent in the social sciences

d) refers to the field of mathematics and is a generalization (model) of specific real concepts, calculated in one way or another

5. Basic physical quantities used in the SI system

a) meter, second, kilogram, ampere, kelvin, mole

b) second, meter, kilogram, volt, ampere, mole, candela

c) ampere, second, meter, kilogram, kelvin, mole, radian

d) meter, kilogram, second, ampere, kelvin, mole, candela

6. Measurement

a) finding the value of a physical quantity using technical means and calculations

b) comparison of a physical quantity with a reference value in the SI system

c) finding the value of a physical quantity empirically using technical means and calculations

d) indication on the scale of an analog measuring device

7. Measuring tool

a) a technical tool designed for measurements

b) a technical tool intended for measurements, having normalized metrological characteristics

c) a technical device that meets established standards

d) electrical measuring instrument

8. Absolute measurement error

a) the difference between the actual and measured values of a physical quantity

b) the sum of the actual and measured value of a physical quantity

c) the ratio of the actual value of a physical quantity to the measured one

d) the ratio of the measured value of a physical quantity to the actual

9. Accuracy class of the measuring device

a) the main metrological characteristic of the instrument, which determines the permissible values of the main and additional errors that affect the measurement accuracy

b) characteristic of the device, indicating the measurement error

c) the main metrological characteristic of the device, which determines the permissible values of the main errors that affect the measurement accuracy

d) characteristic of the device, indicating the relative measurement error

10. Accuracy class of the exemplary measuring instrument

a) must be equal to the accuracy class of the verified

b) must be 1 unit higher than the verified

c) must be 2 units higher than the verified

d) must be 3 units higher than the verified

11. Match definitions

	Direct measurement		a measurement in which the desired value of a quantity is found from a known relationship between this quantity and the quantities subjected to direct measurements (finding density by mass and size)
	Indirect measurement		simultaneous measurements of two or more dissimilar quantities to identify the relationship between them
	Cumulative measurements		measurement in which the desired value of a quantity is found directly from experimental data
	Joint measurements		simultaneous measurements of several quantities of the same name, in which the desired values \u200b\u200bof the quantities are found from a system of equations obtained by direct measurements (finding the mass of a weight in a set from the known mass of one of them and from the results of comparing the masses of various combinations of weights)

a) 1-A, 2-B, 3-C, 4-D

b) 1-A, 2-C, 3-D, 4-B

c) 1-C, 2-A, 3-D, 4-B

d) 1-C, 2-A, 3-B, 4-D

12. Types of verification of measuring instruments (compare)

a) 1-A, 2-B, 3-C, 4-D

b) 1-B, 2-C, 3-D, 4-A

c) 1-C, 2-B, 3-D, 4-A

d) 1-C, 2-B, 3-A, 4-D

Test #13. Oscilloscope Horizontal Voltage Waveform

a) in the absence of a signal at the input - rectangular, in the presence - a constant

b) depends on the measured signal

c) sawtooth

d) sinusoid

14. Classification of electrical measuring instruments (compare)

	By execution for different climatic regions		magnetoelectric electromagnetic electrodynamic induction electrostatic vibrating thermal
	by type of energy used (physical phenomenon)		ordinary with high strength resistant to mechanical stress (shaking, vibration, shock)
	By the influence of mechanical influences		for temperate regions moderate and cold humid tropical dry tropical dry and wet tropical marine and general climatic use
	By type of protection against the action of external magnetic and electric fields		protected from electric fields protected from magnetic fields mounted on ferromagnetic shields mounted on non-magnetic shields installed on any boards
	By the method of converting electrical energy into mechanical		electromechanical, electrothermal, electrokinetic, electrochemical

a) 1-A, 2-B, 3-C, 4-D, 5-D

b) 1-C, 2-D, 3-B, 4-D, 5-A

c) 1-B, 2-A, 3-C, 4-D, 5-D

d) 1-D, 2-A, 3-B, 4-C, 5-D

15. Devices for expanding the boundaries of measurement in DC circuits.

a) for current measurement - shunts, current transformers, for voltage measurement - additional resistances, voltage transformers

b) shunts, additional resistances, current transformers

c) shunts, additional resistances

d) current transformers, voltage transformers

16. Designations on the scales of electrical measuring instruments (compare)

			electrodynamic system
			magnetoelectric system
			electromagnetic system
			heating system with heated filament
			induction system
			ferrodynamic system
			vibration system
			electrostatic system

a) 1-B, 2-C, 3-A, 4-E, 5-D, 6-G, 7-Z, 8-G

b) 1-B, 2-C, 3-A, 4-E, 5-D, 6-G, 7-Z, 8-G

c) 1-B, 2-C, 3-A, 4-E, 5-D, 6-G, 7-Z, 8-G

d) 1-B, 2-C, 3-A, 4-E, 5-D, 6-D, 7-Z, 8-G

17. The principle of operation of the measuring mechanism (compare)

	Magnetoelectric system		torque is created due to the interaction of an alternating magnetic flux with currents induced in a closed winding, disk or cylinder of conductive non-ferromagnetic material
	Electromagnetic system		the torque that moves the moving part of the device arises as a result of the interaction of the magnetic field created by the permanent magnet and the electric current passing through the turns of the winding located in this field
	Electrodynamic system		the phenomenon of mechanical resonance of vibrations of spring plates excited by the action of an alternating current electromagnet is used
	induction system		torque is generated by the core drawn into the slot of the coil when current is passed through the winding
	Electrostatic system		the torque acting on the moving part is created due to the energy of the electric field by the forces of attraction that arise between oppositely charged conductors
	vibration system		torque is created by the interaction of the current of the winding of the frame, fixed on the axis, with the magnetic field created by the fixed winding

a) 1-A, 2-D, 3-E, 4-B, 5-C, 6-D

b) 1-B, 2-D, 3-E, 4-A, 5-D, 6-C

c) 1-A, 2-E, 3-D, 4-C, 5-B, 6-D

d) 1-C, 2-D, 3-A, 4-E, 5-D, 6-B

18. Cathode Ray Tube Oscilloscope:

a) 1-B, 2-C, 3-A, 4-D, 5-D, 6-E, 7-D

b) 1-A, 2-B, 3-C, 4-D, 5-D, 6-E, 7-F

c) 1-C, 2-E, 3-A, 4-G, 5-D, 6-D, 7-B

d) 1-C, 2-E, 3-A, 4-G, 5-D, 6-D, 7-B

19. To measure the liquid level can be used:

a) equalizers with a constant immersion float

b) equalizers based on the use of the physical properties of the liquid

c) all listed types

Test - 20. To measure pressure, you can use:

a) liquid manometers

b) spring pressure gauges

c) pressure gauges of all listed types

d) none of the listed types

21. For direct measurement of force can be used:

a) magnetoelastic sensors

b) piezoelectric sensors

d) none of the listed types

22. Principles of operation of an electric moisture meter:

a) according to the electrical conductivity of the wet substance

b) by the magnitude of the dielectric constant

c) by the magnitude of dielectric losses

d) all of the above

23. Device and principle of operation of digital devices.

1 Analog to Digital Converter

3 Display device

4 Input Device

5 Power unit

6 Control device

7 Computing Device

a) 1-B, 2-D, 3-D, 4-A 5-G, 6-E, 7-C

b) 1-F, 2-E, 3-D, 4-D, 5-A, 6-B, 7-C

c) 1-F, 2-F, 3-D, 4-A, 5-B, 6-D, 7-C

d) 1-B, 2-A, 3-D, 4-D, 5-C, 6-E, 7-G

24. The operation of a resistance thermocouple (thermocouple) is based on:

a) change in the electrical resistance of metals or semiconductors with a change in voltage

b) change in the electrical resistance of semiconductors with a change in temperature

c) change in the electrical resistance of metals with a change in temperature

d) change in the electrical resistance of metals or semiconductors with a change in temperature

25. Measurement of resistance with direct action devices.

a) 1 - for measuring low resistances, 2 - for measuring high resistances, 3 - based on a magnetoelectric ratiometer

b) 1 - for measuring high resistances, 2 - for measuring low resistances, 3 - based on a magnetoelectric ratiometer

c) 1 - based on a magnetoelectric ratiometer, 2 - for measuring low resistances, 3 - for measuring high resistances

d) 1 - for measuring low resistances, 2 - based on a magnetoelectric logometer, 3 - for measuring high resistances

26. Bridge method for measuring resistance

27. To measure linear or angular displacements, the following can be used:

a) rheostat converters

b) inductive and transformer converters in

) capacitive transducers

d) converters of all listed types

28. Test. For direct measurement of force, the following can be used:

a) magnetoelastic sensors

b) piezoelectric sensors

c) sensors of all listed types

d) none of the listed types

29. Accelerometer with piezoelectric transducer:

a) 1-A, 2-B, 3-C; b) 1-B, 2-C, 3-A; c) 1-A, 2-C, 3-B; d) 1-C, 2-B, 3-A

30. For non-contact temperature measurement, the following is used:

a) photometer

b) pyrometer

c) thermometer

TESTS

1. Metrology is ...

a) the theory of transferring the sizes of units of physical quantities;

b) the theory of initial measuring instruments (standards);

c) the science of measurements, methods and means of ensuring their unity and ways to achieve the required accuracy;

2. A physical quantity is ...

a) the object of measurement;

b) the quantity to be measured, measured or measured in accordance with the main purpose of the measurement task;

c) one of the properties of a physical object, which is qualitatively common for many physical objects, but quantitatively individual for each of them.

3 . The quantitative characteristic of a physical quantity is called ...

a) size;

b) dimension;

c) the object of measurement.

4 . The qualitative characteristic of a physical quantity is called ...

a) size;

b) dimension;

c) quantitative measurements of non-physical quantities.

5 . The measurement is...

a) the choice of technical means having normalized

metrological characteristics;

b) the operation of comparing the unknown with the known;

c) experimental finding of the value of the physical quantity c with the help of technical means.

6. The objects of measurement include ...

a) exemplary measures and instruments;

b) physical quantities;

c) measures and standard samples.

7. When describing electrical and magnetic phenomena in SI, the basic unit is ...

a) volt;

b) ohm;

c) ampere.

8. When describing space-time and mechanical phenomena in SI for basic units are accepted...

a) kg, m, N;

b) m, kg, J, ;

c) kg, m, s.

9. When describing light phenomena in SI, the basic unit is ...

a) light quantum;

b) candela;

c) lumens.

10. To verify the copy standards are ...

a) state standards;

b) comparison standards;

c) standards of the 1st category.

11. For verification of working standards are ...

a) copy samples;

b) state standards;

c) comparison standards.

12. For verification of working measures and instruments, ...

a) working standards;

b) copy samples;

c) comparison standards.

13. Varieties of direct measurement methods are ...

a) methods of direct evaluation;

b) comparison methods;

c) methods of direct evaluation and methods of comparison.

14. According to the method of obtaining the result, all measurements are divided into ...

b) direct and indirect;

15. In relation to the change in the measured value, measurements are divided into ...

a) static and dynamic;

b) equal and unequal;

c) direct, indirect, joint and cumulative.

16. Depending on the number of measurements, measurements are divided into ...

a) single and multiple;

b) technical and metrological;

c) equal and unequal.

17. Depending on the expression of the measurement results, they are divided into ...

a) equal and unequal;

b) absolute and relative;

c) technical and metrological.

18. Of the listed metrological characteristics of the device, the measurement quality includes ...

a) accuracy class;

b) measurement limit;

c) input impedance.

19. The unity of measurements is called ...

a) a system for calibrating measuring instruments;

b) comparison of national standards with international ones;

c) the state of measurements, in which their results are expressed in legal units of quantities and measurement errors do not go beyond the established limits with a given probability.

20 The main error of the measuring instrument is the error determined by ...

a) in the working conditions of measurements;

b) under the limiting conditions of measurements;

c) under normal measurement conditions.

21 The correctness of measurements is ...

22. The convergence of measurements is ...

a) a characteristic of the quality of measurements, reflecting the closeness to zero of the systematic errors of the measurement results;

b) a characteristic of the quality of measurements, reflecting the closeness to each other of the results of measurements of the same quantity, performed repeatedly by the same methods and measuring instruments and under the same conditions; reflects the influence of random errors on the measurement result;

c) a characteristic of the quality of measurements, reflecting the closeness to each other of the results of measurements of the same quantity, obtained in different places, by different methods and measuring instruments, by different operators, but reduced to the same conditions.

23. Reproducibility of measurements is ...

a) a characteristic of the quality of measurements, reflecting the closeness to zero of the systematic errors of the measurement results;

b) measurement quality characteristic, reflecting the closeness to each other of the results of measurements of the same quantity, performed repeatedly by the same methods and measuring instruments and under the same conditions; reflects the influence of random errors on the measurement result;

24. The metrological characteristics of measuring instruments include ...

a) division value, measurement range, accuracy class, power consumption;

b) code characteristics, electrical input and output impedance, measurement range, speed;

c) measurement range, accuracy class, overall dimensions, cost.

25. Metrological characteristics for determining measurement results include ...

a) transformation function, measure value, division value, code characteristics;

b) electrical input impedance, electrical output impedance, SI errors, reaction time;

c) error distribution function, SI errors, measure value, division value.

26 A measuring instrument designed to reproduce a value of a given size is called ...

a) a real measure,

b) measuring installation;

c) the primary standard of magnitude.

27 When measuring several quantities of the same name at the same time, measurements are called ...

a) indirect;

b) joint;

c) cumulative.

28 When measuring several dissimilar quantities at the same time, measurements are called ...

a) indirect;

b) joint;

c) cumulative.

29 Measurements in which the value of the measured quantity is found on the basis of a known relationship between it and the quantities subjected to direct measurements are called ...

a) indirect;

b) joint;

c) cumulative.

30 Measurements in which the rate of change of the measured quantity is commensurate with the rate of measurement are called ...

a) technical;

b) metrological;

c) dynamic.

31 Measurements in which the rate of change of the measured quantity is much less than the rate of measurement are called ...

a) technical;

b) metrological;

c) static.

32 The transfer function of the measuring instrument belongs to the group of metrological characteristics ...

a) to determine the measurement results;

b) sensitivity to influencing factors;

c) dynamic.

33. An ordered set of values of a physical quantity, adopted by agreement on the basis of the results of accurate measurements, is called ...

a). auxiliary measurements

b) a scale of physical quantity

c) unit of measurement

G)selection of measurement results

34. A property that is qualitatively common for many objects, but quantitatively individual for each of them, is called ...

a) the size of a physical quantity

b) the dimension of a physical quantity

c) physical quantity

G)factor

35. The main units of the system of physical quantities are ...

b) meter

c) kilogram

G)joule

36. According to the international system of units of physical quantities, force is measured ...

G)newton

37. The prefixes SI to denote an increase in the values of physical quantities are ...

a) kilo

c) mega

G)micro

38. SI prefixes for denoting decreasing values of physical quantities are ...

a) deci

b) centi

G)hecto

39. The direct evaluation method has the following advantages:

a) makes it possible to measure a quantity in a wide range without reconfiguration

b) effective in control in mass production

c) a relatively small instrumental component of the measurement error

G)provides high sensitivity

40. According to the method of obtaining information, measurements are divided ...

a) single and multiple

b) static and dynamic

c) direct, indirect, cumulative and joint

G)absolute and relative

Test with answers on the basics of metrology

1. Specify the purpose of metrology:

1) ensuring the uniformity of measurements with the necessary and required accuracy; +