1) Arrange the following components of temperature measurement system according to measurement system
Hot body, Display system, Thermocouple, Amplifier and converter
a. Hot body----Display system-----Thermocouple-----Amplifier and converter
b. Hot body----Amplifier and converter-----Thermocouple-----Display system
c. Hot body----Thermocouple-----Amplifier and converter-----Display system
d. Display system-----Hot body----Thermocouple-----Amplifier and converter
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Answer
Explanation
Related Ques
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ANSWER: Hot body----Thermocouple-----Amplifier and converter-----Display system
Explanation:
No explanation is available for this question!
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2) The characteristic that provides an output with respect to the relation with the input is called as ___________
a. calibration of a system
b. response of a system
c. characteristic relation of a system
d. instrumentation of a system
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3) The study of relationship between the input and output, when the input is invariant with respect to time is called as_____
a. static characteristics of instruments
b. dynamic characteristics of instruments
c. variable characteristics of instruments
d. none of the above
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4) The process of establishment of a relationship between the input to the instrument and output from the instrument is called as_____
a. static sensitivity
b. static characterization
c. static accuracy
d. static calibration
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5) ________ is the curve plotted between input and output by giving known inputs to an instrument and obtaining corresponding outputs.
a. characteristic curve
b. accuracy curve
c. calibration curve
d. sensitivity curve
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6) The displacement of a mass attached to a spring in mechanical system is corresponding to _______ in the electrical system
a. inductance
b. resistance
c. capacitance
d. current
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7) What is the transfer function of an electrical system given below?
Where,
I: Current
V: Voltage
R: Resistance
a. V
b. 1/V
c. I
d. 1/R
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8) Which of the following statements are true for block diagrams?
1. Block diagrams are the pictorial representation of the system
2. The complicated systems can be easily represented by connecting different blocks
3. Block diagram represents the relationship between input and output of the system
a. Statements (1) and (2)
b. Statements (2) and (3)
c. Statements (1) and (3)
d. Statements (1), (2) and (3)
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9) A corresponding block of an element is drawn by inserting ________ of that element inside the block.
a. the value of corresponding input
b. a transfer function
c. the value of corresponding output
d. the name
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10) What is/are the maximum number of arrow/s (Input/s) allowed to go inside the block?
a. One
b. Two
c. Three
d. Four
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11) The task of time sharing, in which large number of data signals are sent through cables or buses, is performed by____
a. sensors or transducers
b. central processing unit (CPU)
c. multiplexer
d. analog to digital converter
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12) Data acquisition of all the physical quantities in the real world is done in
a. the analog mode
b. the digital mode
c. either analog mode or digital mode
d. none of the above
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13) According to Nyquist theorem, the sampling rate should be _________ as fast as the highest frequency of the signal being measured or sampled.
a. twice
b. thrice
c. ten times
d. hundred times
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14) Digital to Analog Conversion is ______________ Analog to Digital Conversion.
a. less complex than
b. more complex than
c. as complex as
d. unpredictable
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15) Micro-controllers are ________________ than the PLCs.
a. bulky and expensive
b. bulky but cheaper
c. portable and cheaper
d. portable but expensive
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16) How is the noise immunity of PLCs to electrical noises as compared to that of conventional relay controllers?
a. poor
b. excellent
c. as good as noise immunity of conventional relay controllers
d. unpredictable
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17) The capability of convention relay systems for complex operations is ___________ that of the PLCs .
a. poor than
b. excellent than
c. as good as
d. unpredictable as
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18) How is the speed of operation of conventional relay system as compared to digital controllers?
a. very slow
b. very fast
c. same
d. almost similar
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19) The type of memory which is fast and temporarily stores the data which are immediately required for use is called as______.
a. HDD
b. ROM
c. RAM
d. SSD
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20) When ___________ contacts are actuated, they disrupt the power supply through them.
a. normally open type
b. normally closed type
c. both a. and b.
d. none of the above
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21) Which method is used for stability analysis?
a. Nyquisit criteria
b. Root locus method
c. Routh Hurwitz criteria
d. All of the above
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22) What is the ratio of amplitude of response to that of the input called?
a. Response
b. Gain
c. Phase
d. Frequency
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23) In all cases of input frequency, if the gain starts reducing, the phase angle will _______.
a. start reducing
b. start increasing
c. be remain constant
d. be unpredictable
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24) If the frequency of the input signal to a system is increased, the amplitude of the output _______.
a. start reducing
b. start increasing
c. be remain constant
d. be unpredictable
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25) __________ is the time required for the response to reach 50% of the final value in the first attempt.
a. Rise time
b. Peak time
c. Settling time
d. Delay time
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26) Consider the following graph of Controller Characteristics of On-Off Control. The region shown between curve A and curve B is called as________.
a. dead zone
b. hysteresis
c. both a. and b.
d. none of the above
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27) Which of the following is/are the drawback/s of proportional control?
1. Proportional control system is complicated and costly.
2. Proportional control system is not suitable for pressure temperature and flow control problems
3. If there are sudden disturbance, the proportional control system takes time to stabilize.
a. (1)
b. (2)
c. (3)
d. (1), (2) and (3)
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28) Shifting of set point and adjusting its new value by the controller, when the value of disturbance increases, is called as_______.
a. set-shift
b. offset
c. stabilization
d. none of the above
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29) The range of control of controller __________ due to presence of offset.
a. increases
b. decreases
c. remains constant
d. cannot say
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30) If the value of error increases, the changing speed of controller output __________.
a. increases
b. decreases
c. remains constant
d. cannot say
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