engineering measurements
問題一覧
1
Study of engineering measurements, measuring physical quantities and the instrument or apparatus used in measurement
physical measurement
2
The Only 3 quantities considered as fundamental quantities
length,mass,time
3
basis of all measurement of the other quantities
fundamental quantities
4
combination of two-three fundamental quantities
derived quantities
5
Which one is NOT the use of the metric system?
foot
6
english systems uses
foot,pound,second
7
process of ascertaining the magnitude or condition of a physical quantity through comparison with a given accepted standard
measurement
8
apparatus for ascertaining and exhibiting in some suitable manner
measuring instrument
9
the pointer, light spot, liquid surface and etc., value of the measured quantity, the point of balance of a null-point instrument is indicated
index
10
indicating instrument, array of marks, together asscociated figuring, with relatiin to which the index is observed
scale
11
the process of setting out the scale with the series of marks
graduation
12
process of determining characteristics relation between the value of the physical quantities
calibration
13
measurement of physical quatities are performed in two methods:
direct and indirect comparison
14
the smallest change in the quantity measured which produces a perceptible movement of the index
sensitiveness
15
the reproducibility of the readings of an instrument when a series of test is carried out in a short interval of time under fixed condition of use.
repeatability
16
the reproducibility of mean readings of an instrument when tested under defined condition of use, repeated on different occasions separated by intervals of time which are long compared to the time of taking a reading
stability
17
a general term describing the degree of closeness with which the indications of an instrument approach the true values of the quantities
accuracy
18
the difference obtained by subtracting the true value of the quantity measured from the indicated value, due regard being paid to the sign of each
error
19
the amount which should be added to indicated value, due regard being paid to sign, to obtain the true value of the quantity measured
correction
20
the optical illusion situation often overlooked by people in reading of index positions relative to the scale
parallax
21
a slight degree of "play" in the movementof the instrument which constitute an error due to the instrument itself
backlash
22
the term used to described for the pressure between the face of the measuring instrument contact and the surface to which the contact is applied
feel
23
a device incorporated in the design of a measuring instrument for the purpose of insuring that the measuring pressure shall remain constant
fiducial indicator
24
is the smallest amount of the quantity being measured which the instrument can give or detect. This is equivalent to the smallest increment in the graduation of the measuring instrument
resolution
25
the suscriptibility of a measuring device to having its indication converted to a meaningful number. Such as the vernier on a micrometer or caliper
readability
26
a device that respond to a phenomenon of producing a signal which is related to two or more variables of the phenomenon
transducer
27
the pick or detecting elements that respond to the magnitude and changes in the measured value
sensor
28
the part of the measuring system which displays output signal or information shown in the form of indicators, digital display, or recorders
readout
Operating Systems and Office Automation
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Uts
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問題一覧
1
Study of engineering measurements, measuring physical quantities and the instrument or apparatus used in measurement
physical measurement
2
The Only 3 quantities considered as fundamental quantities
length,mass,time
3
basis of all measurement of the other quantities
fundamental quantities
4
combination of two-three fundamental quantities
derived quantities
5
Which one is NOT the use of the metric system?
foot
6
english systems uses
foot,pound,second
7
process of ascertaining the magnitude or condition of a physical quantity through comparison with a given accepted standard
measurement
8
apparatus for ascertaining and exhibiting in some suitable manner
measuring instrument
9
the pointer, light spot, liquid surface and etc., value of the measured quantity, the point of balance of a null-point instrument is indicated
index
10
indicating instrument, array of marks, together asscociated figuring, with relatiin to which the index is observed
scale
11
the process of setting out the scale with the series of marks
graduation
12
process of determining characteristics relation between the value of the physical quantities
calibration
13
measurement of physical quatities are performed in two methods:
direct and indirect comparison
14
the smallest change in the quantity measured which produces a perceptible movement of the index
sensitiveness
15
the reproducibility of the readings of an instrument when a series of test is carried out in a short interval of time under fixed condition of use.
repeatability
16
the reproducibility of mean readings of an instrument when tested under defined condition of use, repeated on different occasions separated by intervals of time which are long compared to the time of taking a reading
stability
17
a general term describing the degree of closeness with which the indications of an instrument approach the true values of the quantities
accuracy
18
the difference obtained by subtracting the true value of the quantity measured from the indicated value, due regard being paid to the sign of each
error
19
the amount which should be added to indicated value, due regard being paid to sign, to obtain the true value of the quantity measured
correction
20
the optical illusion situation often overlooked by people in reading of index positions relative to the scale
parallax
21
a slight degree of "play" in the movementof the instrument which constitute an error due to the instrument itself
backlash
22
the term used to described for the pressure between the face of the measuring instrument contact and the surface to which the contact is applied
feel
23
a device incorporated in the design of a measuring instrument for the purpose of insuring that the measuring pressure shall remain constant
fiducial indicator
24
is the smallest amount of the quantity being measured which the instrument can give or detect. This is equivalent to the smallest increment in the graduation of the measuring instrument
resolution
25
the suscriptibility of a measuring device to having its indication converted to a meaningful number. Such as the vernier on a micrometer or caliper
readability
26
a device that respond to a phenomenon of producing a signal which is related to two or more variables of the phenomenon
transducer
27
the pick or detecting elements that respond to the magnitude and changes in the measured value
sensor
28
the part of the measuring system which displays output signal or information shown in the form of indicators, digital display, or recorders
readout