L1

Question 1

Over the last century and a half, art of measuring electrical quantities

Answer 1

Analog

Question 2

The principal effort was aimed at deflection-type instrument with a scale and movable pointer.

Answer 2

Analog

Question 3

The angle of deflection of the pointer is function of, and is therefore analogous to, the value of the electrical quantity being measured.

Answer 3

Analog

Question 4

instrument was coined to identify deflection-type instruments and to distinguish these from totally different instruments, display in decimal (digital) from the value of the quantity being measured.

Answer 4

Analog

Question 5

display in decimal (digital) from the value of the quantity being measured.

Answer 5

Digital instrument

Question 6

newer instruments.

Answer 6

Digital instrument

Question 7

Common purposes in supplying information about some variable quantity
that is to be measured.

Answer 7

Instrument

Question 8

What function supplies information about some variable quantity
that is to be measured.

Answer 8

Indicating

Question 9

Provides visual indication of the quantity

Answer 9

Instrument

Question 10

Furnishes a permanent record.

Answer 10

Instrument

Question 11

What function furnishes permanent record

Answer 11

Recording

Question 12

Used to control quantity.

Answer 12

Instrument

Question 13

What function is used to control quantity

Answer 13

Controlling

Question 14

3 basic function

Answer 14

Indicating
Recording
Controlling

Question 15

These entire system is called a

Answer 15

Control or automated system

Question 16

What type of instrument uses the function of recording, and indicating?

Answer 16

General instrument

Question 17

What type of instrument uses the function of controlling ?

Answer 17

Industrial instrument

Question 18

What type of instrument is used to measure solution conductivity

Answer 18

Current sensitive devise

Question 19

increase the signal of
the quantity being measured.

Answer 19

Electronic instrument that contains amplifying circuit

Question 20

measure current, voltage, resistance, pressure, temperature, sound level or any other physical quantities.

Answer 20

Eletronic instrument

Question 21

are more expensive than a simple electrical instrument, but they offer significant advantages for measurement purposes. It has higher sensitivity rating because it utilized electronic amplifiers.

Answer 21

Electronic instrument

Question 22

What instrument has the ability to monitor remote signal

Answer 22

Electronic instrument

Question 23

defined by international and maintained at Bureau of Weight and Measures in Paris.

Answer 23

International standard

Question 24

represent certain units of measurement to the closest possible accuracy attainable by the science and technology of measurement.

Answer 24

International standard

Question 25

-it applies at National Standards laboratories in different countries.

Answer 25

Primary standard

Question 26

The National Bureau of Standards (NBS) is responsible for maintaining the primary standards are not available for use outside the national laboratories.

Answer 26

Primary standard

Question 27

Their principal function is calibration and verification of secondary standards

Answer 27

Primary standard

Question 28

are basic reference standards used by measurement and calibration laboratories in the industry to which they belong.

Answer 28

Secondary standard

Question 29

Each of the laboratory is responsible to its own ?

Answer 29

Secondary standard

Question 30

After the calibration the _________ _______ are returned to the industrial laboratory with a certification of measuring accuracy in terms of primary standard.

Answer 30

Secondary standard

Question 31

are the principal tools of the measurements laboratory.

Answer 31

Working standard

Question 32

They are used to check and calibrate the instruments used in the laboratory in the laboratory or to make comparison measurements in industrial application.

Answer 32

Working standard

Question 33

convert non-electrical signals into electrical signal.

Answer 33

Transducer sensor

Question 34

are required only if the quantity being measured is non-electrical signal such as pressure or temperature.

Answer 34

Transducer sensor

Question 35

is required to process the incoming electrical signal to make it suitable for application to the indicating device.

Answer 35

Signal modifier

Question 36

The signal may need to be amplified until it is of significant amplitude to cause change at the indicating device

Answer 36

Signal modifier

Question 37

is a modifier design to reduce the strength of signal applied at the indicating device.

Answer 37

Voltage divider

Question 38

Wave-shaping circuits such as rectifiers, filters and choppers are also used as modifiers

Answer 38

Signal modifier

Question 39

are deflection type meter for such general-purpose instruments such as voltmeters, current meters or choppers

Answer 39

Indicating devise

Question 40

is the process of comparing an unknown quantity with an accepted standard quantity.

Answer 40

Measurement

Question 41

It involves connecting a measuring instrument into the system under consideration and observing the resulting response on the instrument.

Answer 41

Measurement

Question 42

The measurement thus obtained is quantitative measure of the so-called

Answer 42

True value

Question 43

is used as a term for most the measurements because true-value is very difficult to define.

Answer 43

Expected value

Question 44

are always made nearest to something whether it is stated or not, ______ is never exact.

Answer 44

Measurement

Question 45

The degree to which a measurement conforms to the expected value

Answer 45

Error in measurement

Question 46

Errors can be express either as

Answer 46

Absolute error / per cent of error

Question 47

can be defined as the difference between the expected value and the measured value.

Answer 47

Absolute error

Question 48

is considered to be one half of the smallest measuring unit.

Answer 48

Greatest possible error

Question 49

Machines used in manufacturing often set “_______”, or “______ _____,” or “_____” in which product measurements will be tolerated or accepted before they are considered flawed.

Answer 49

Margin of error Tolerance Range

Question 50

Any measurements within this range are "tolerated" or perceived as correct. This is also known as

Answer 50

Tolerance range

Question 51

Any measurements within this range are "tolerated" or perceived as correct. This is also known as

Answer 51

Tolerance range