Process Control and Instrumentation Quiz 1
1 / 50
A photo electric device in which the resistance of the metal is directly proportional to the light striking on it, is known as photo-conductive cell. Photoelectric transducers are used for the measurement of those parameters, which can be used to produce variation in________?
2 / 50
A stable system is the one_____?
3 / 50
_____ is the static characteristics of an instrument?
4 / 50
A mercury barometer measures the ______ pressure?
5 / 50
A typical example of a physical system with under damped characteristic is a______?
6 / 50
Bourdon tube is never made of_________?
7 / 50
A bimetallic thermometer as compared to industrial mercury in glass thermometer has almost the same__________?
8 / 50
Concentration of sugar solution can be determined by the___________?
9 / 50
Compositional analysis of flue gas coming out of a furnace in respect of O2 and CO2% can be continuously done by a/an_____?
10 / 50
_____ stability method uses open loop transfer function?
11 / 50
An amplitude ratio of 0.1 corresponds to ______ decibels?
12 / 50
Characteristic equation is the denominator of _____ loop transfer function?
13 / 50
A pyrheliometer is an instrument used for measuring the__________?
14 / 50
A simple pitot tube measures the_____?
15 / 50
?A control system is unstable, if the open loop frequency response exhibits an amplitude ratio exceeding unity at the crossover frequency.? This is ________ criterion?
16 / 50
Continuous flue gas analyser makes use of paramagnetic properties of some of its constituents, which move towards the strongest part of the magnetic field thus displacing diamagnetic gases. Which of the following gases is diamagnetic ?
17 / 50
A non-linear system will have ______ steady state values?
18 / 50
______ is an example of distributed parameter system ?
19 / 50
Bimetal strips are not used in_________?
20 / 50
________ thermometer cannot measure sub-zero (< 0? C) temperature ?
21 / 50
A constant volume gas thermometer employing _______ is used to measure sub-zero (i.e., < 0?C) temperature?
22 / 50
A first order system with unity gain and time constant ? is subjected to a sinusoidal input of frequency w = 1/?. The amplitude ratio for this system is_______?
23 / 50
Composition of natural gas is determined by the__________?
24 / 50
A negative gain margin expressed in decibels means a/an _____ system?
25 / 50
A sinusoidal variation in the input passing through a linear first order system __________?
26 / 50
Bode diagram are generated from output response of the system subjected to which of the following input ?
27 / 50
Compositional analysis of _______ is done using mass spectrometer?
28 / 50
A bolometer is ___________?
29 / 50
Bode stability method uses _____ loop transfer function?
30 / 50
Accurate temperature measurement performance of a radiation pyrometer cannot be affected, if the ?
31 / 50
_______ is undesirable in thermocouples used in industries ?
32 / 50
_______ controller has the maximum stabilising time?
33 / 50
A system with transfer function [(2S/4S) + 1] is of ______ order?
34 / 50
Cascade control means ________?
35 / 50
A pyranometer is an instrument used for measuring the_____?
36 / 50
Configuration of Bourdon spring tube is never made of ______ shape?
37 / 50
An aneroid barometer measures the ______ pressure?
38 / 50
Composition of alloys can be determined by __________?
39 / 50
A barometer measures the ______ pressure?
40 / 50
A system with a double pole at the origin is unstable since the corresponding term in the time domain_________?
41 / 50
All the thermocouples used for temperature measurement use dissimilar metal _________?
42 / 50
_____ are analysed using a Polarograph?
43 / 50
A first order system with a time constant of 1 min is subjected to frequency response analysis. At an input frequency of 1 radian/min, the phase shift is_______?
44 / 50
A non-linear chemical system is exemplified by a/an__________?
45 / 50
A mercury thermometer cannot be used to measure the temperature below the freezing point of mercury, which is ______ ?C?
46 / 50
A magnetic flowmeter is__________?
47 / 50
A manometer measures the ______ pressure?
48 / 50
Change of angle of refraction with composition comprises the working principle of a_____?
49 / 50
A proportional controller with a gain of Kc is used to control a first order process. The offset will increase, if_________?
50 / 50
According to Bode stability criterion, a system is unstable, if the open loop frequency response exhibits an amplitude ratio exceeding unity at frequency for which phase lag is__________?
Provide Your Information
Your score is
The average score is 0%
Restart quiz
