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