Deck 2: Measurement System and Transducer

Question 1

In a measuring system quantity under measurement is termed as ________________

A)Measurand
B)Controllers
C)Sensors
D)Indicators

Answer 1

Measurand

Question 2

_ _ _ _ _ is the complicated output signal types

A)Analog voltage
B)PWM
C)Serial digital
D)All the above

Answer 2

Serial digital

Question 3

Which of the following is not a characteristic of an ideal transducer?

A)High dynamic range
B)Low linearity
C)High repeatability
D)Low noise

Answer 3

Low linearity

Question 4

_ _ _ _ _ _ _ signals are much more susceptible to noise

A)Analog signal
B)Digital signal
C)Both Analog and Digital signal
D)None of the above

Question 5

_ _ _ _ _ _ is the closeness to true value

A)Zero stability
B)Accuracy
C)Sensitivity
D)Linearity

Question 6

The simplest model for a measurement system is a _ _ _ _ order differential equation

A)Zero
B)First
C)Second
D)Third

Question 7

Probable error is due to _ _ _ _ _ _.

A)Systematic error
B)Gross error
C)Random error
D)None of the mentioned

Question 8

_ _ _ _ _ is the value which occurs most frequently in a set of observations and around which other items of the set cluster densely

A)Mean
B)Median
C)Mode
D)Variance

Question 9

_ _ _ _ _ __ parameters on which sensor classified?

A)Material and technology
B)Application
C)Property and input quantity
D)All the above

Question 10

In a measuring system what is the term used to specify a difference between higher and lower calibration values?

A)Range
B)Span
C)Drift
D)Threshold

Question 11

Which of the following represent active transducer?

A)Strain gauge
B)Thermistor
C)LVDT
D)Thermocouple

Question 12

Capacitive transducer is used for?

A)Static measurement
B)Dynamic measurement
C)Transient measurement
D)Both static and dynamic

Question 13

The mercury in glass thermometer is an example of a _ _ _ _ _ _ order instrument

A)Zero
B)First
C)Second
D)Third

Question 14

_ _ __ _Senses the physical changes occur in the surrounding and converting it into a readable quantity.

A)Transducer
B)Actuator
C)Relay
D)Sensor

Question 15

A _ _ _ _ means that the sensor output is higher or lower than the ideal output.

A)Offset
B)Sensitivity
C)Linearity
D)Resolution

Question 16

The _ _ _ _ _characteristics of a transducer refer to the performance of the transducer when it is subjected to time varying signal.

A)Static
B)Dynamic
C)Transient
D)Both a and b

Question 17

A common example of a _ _ _ _ _ _ _ is to calibrate a temperature sensor using an ice-water bath and boiling water for the two references.

A)One point calibration
B)Two point calibration
C)Three point calibration
D)Both a and b

Question 18

___________, relating the sensor performance after or during exposure to specified external conditions (e.g. pressure, temperature, vibration and radiation).

A)Static characteristics
B)Dynamic characteristics
C)Environmental characteristics
D)Reliability Characteristics

Question 19

A _ _ _ _ __ much more immune to noise than an analog signal

A)Analog voltage
B)PWM
C)Serial digital
D)All the above

Question 20

Sensor and signal conditioning jointly referred as __ _ __

A)Transducer
B)Actuator
C)Relay
D)All the above

Question 21

The most common techniques for noise reduction are differential signal transmission and passive low pass _ _ _ _

A)Filtration
B)Amplifier
C)Relay
D)All the above

Question 22

Which of the following is caused by careless handling?

A)Systematic error
B)Gross error
C)Random error
D)None of the mentioned

Question 23

Bonding element in a strain gauge must have __________

A)zero insulation resistance
B)low insulation resistance
C)high insulation resistance
D)infinite insulation resistance

Question 24

In AMR the resistance produced by scattering is_ _ _ _ __ when the magnetization direction is parallel to the current direction

A)Zero
B)Minimum
C)Maximum
D)infinite