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Analytical Instrumentation MCQ Question Set 18
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Analytical Instrumentation MCQ Question Set 18
1
What is the time constant for a resistor-capacitor network?
A
R
B
C
C
R/C
D
RC
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✅ Correct Answer: 4
2
Cascading two first-order system doesn’t result in under-damped second order system.
A
True
B
False
C
all of the above
D
None of the mentioned
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✅ Correct Answer: 1
3
Which of the following has transfer function G(S) = 1/(1+SÏ„)?
A
First order low pass filter
B
First order high pass filter
C
Notch filter
D
None of the mentioned
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✅ Correct Answer: 1
4
In which of the following categories RLC network can be included?
A
Zero-order system
B
First-order system
C
Second-order system
D
Third-order system
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✅ Correct Answer: 3
5
For an RC network with R=1KΩ and C=100µF. What will be the time constant of a system?
A
0.1
B
1
C
10
D
0.01
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✅ Correct Answer: 1
6
What is the Laplace transform of the component inductor?
A
sL
B
L
C
L/s
D
s2L
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✅ Correct Answer: 1
7
How we can express Laplace transform of component capacitor?
A
Cs
B
C
C
1/sC
D
1/C
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✅ Correct Answer: 3
8
What is the natural frequency of RLC circuit?
A
LC
B
RLC
C
√LC
D
1/(√LC)
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✅ Correct Answer: 4
9
What will be the transfer function of a body of mass M, in which input quantity is force and output quantity is displacement?
A
sM
B
s2M
C
1/sM
D
1/( s2 M)
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✅ Correct Answer: 4
10
Mass and Moment of inertia are equivalent quantities.
A
True
B
False
C
all of the above
D
None of the mentioned
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✅ Correct Answer: 1
11
Linear and torsional springs are used to provide ______and __________
A
Restoring force and torque respectively
B
Restoring torque and force respectively
C
Restoring torque only
D
None of the mentioned
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✅ Correct Answer: 1
12
Restoring force of a spring under stress is F(s) = ________
A
X(s)
B
KX(s)
C
K
D
None of the mentioned
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✅ Correct Answer: 2
13
Spring is a ___________ order system.
A
Zero
B
First
C
Second
D
Third
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✅ Correct Answer: 2
14
Name the Friction which acts till the body starts moving?
A
Dynamic friction
B
Static friction
C
Viscous friction
D
None of the mentioned
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✅ Correct Answer: 2
15
What will you call the friction between a relative motion of two bodies?
A
Static friction
B
Dynamic friction
C
Viscous friction
D
None of the mentioned
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✅ Correct Answer: 3
16
What is the equivalent quantity of capacitance in the transfer function of the viscous force?
A
Viscous force
B
Viscosity
C
Damping coefficient
D
Inertia
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✅ Correct Answer: 3
17
Transfer function of force acting on a body is given as 1/(s2 M). What will be the transfer function of a rotating body?
A
1/(s2 j)
B
1/j
C
1/sM
D
None of the mentioned
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✅ Correct Answer: 1
18
20N force is acting on a 5Kg body. What will be its rate of change of velocity?
A
4m/s2
B
5m/s2
C
10m/s2
D
2m/s2
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✅ Correct Answer: 1
19
Tacho generators are ______
A
Zero-order system
B
First-order system
C
Second order system
D
None of the mentioned
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✅ Correct Answer: 1
20
Current to force and current to torque conversion is possible only for a constant current source.
A
True
B
False
C
all of the above
D
None of the mentioned
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✅ Correct Answer: 1
21
Which of the following represents transfer function of tacho-generators?
A
Kg
B
1/Kg
C
SKg
D
S2Kg
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✅ Correct Answer: 1
22
Transfer function of force motor is _______
A
Kg
B
SKg
C
Kf
D
SKf
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✅ Correct Answer: 3
23
Most electrical indicating instruments are electromechanical systems since _________
A
They are used to measure electric component
B
They are more precise
C
They require no external power to operate
D
They convert electrical quantity to mechanical quantity
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✅ Correct Answer: 4
24
Torque developed by a DC motor will be proportional to armature current.
A
True
B
False
C
all of the above
D
None of the mentioned
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✅ Correct Answer: 1
25
Which of the following is the correct conversion in an electro mechanical system?
A
Electrical to electrical
B
Mechanical to electrical
C
Both electrical to mechanical and mechanical to electrical
D
Both electrical to mechanical and mechanical to electrical
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✅ Correct Answer: 4
26
For a constant field dc motor, what is the relation between the mechanical time constant and armature resistance?
A
Direct proportionality
B
Inverse proportionality
C
Double
D
Equal
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✅ Correct Answer: 1
27
Which of the following represents for torque speed characteristic for dc motor?
A
Positive slope
B
Negative slope
C
Slope zero
D
None of the mentioned
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✅ Correct Answer: 2
28
What is the relation between eddy current damping coefficient and resistance in PMMC device?
A
Direct proportionality
B
Inverse proportionality
C
Constant
D
None of the mentioned
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✅ Correct Answer: 2
29
What is the analogous quantity of current in the fluidic system?
A
Flow rate
B
Pressure
C
Viscosity
D
Density
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✅ Correct Answer: 1
30
Which of the following device cannot be used for measuring the pressure of a liquid?
A
Diaphragm
B
Bellow
C
Bourdon tube
D
pH meter
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✅ Correct Answer: 4
31
In laminar flow pressure changes are maximum.
A
True
B
False
C
all of the above
D
None of the mentioned
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✅ Correct Answer: 1
32
Which of the following represents liquid manometer?
A
Zero order system
B
First order system
C
Second order system
D
Third order system
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✅ Correct Answer: 3
33
What is the advantage of the pneumatic system over the hydraulic system?
A
Gases provide low compressibility
B
Gases provide high compressibility
C
Liquid shows high compressibility
D
None of the mentioned
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✅ Correct Answer: 2
34
Which of the following represents hydraulic capacitance of manometer?
A
ϱΔV/ΔP
B
ΔV/ΔP
C
ϱΔP/ΔV
D
none of the mentioned
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✅ Correct Answer: 1
35
Which of the following is not a scalar quantity?
A
Pressure
B
Density
C
Force
D
Viscosity
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✅ Correct Answer: 3
36
Which of the following is used to represent a difference in pressure between absolute zero and atmospheric pressure?
A
Absolute pressure
B
Gauge pressure
C
Differential pressure
D
None of the mentioned
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✅ Correct Answer: 2
37
What is the equivalent pressure in Pascal for 1atm pressure?
A
101.3 Pa
B
101.3 KPa
C
50.4 Pa
D
50.4 Kpa
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✅ Correct Answer: 2
38
Which of the following is true for ideal filter frequency response?
A
Abrupt change from pass band to reject band
B
Smooth change from pass band to reject band
C
Contains only pass band
D
None of the mentioned
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✅ Correct Answer: 2
39
Which of the following is true for low-pass filter?
A
Pass band less than cut-off frequency
B
Pass band greater the cut-off frequency
C
Pass band anywhere in frequency response
D
None of the mentioned
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✅ Correct Answer: 1
40
Which of the following represents bridge-T filter?
A
Band pass filter
B
Low pass filter
C
High pass filter
D
Band reject filter
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✅ Correct Answer: 4
41
Twin-T filter is band reject and Notch filter is band pass filter.
A
True
B
False
C
all of the above
D
None of the mentioned
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✅ Correct Answer: 2
42
Notch filter belongs to __________
A
Zero-order system
B
First-order system
C
Second-order system
D
Third-order system
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✅ Correct Answer: 4
43
Rejection frequency of notch filter can be expressed as __________
A
1/RC
B
1/C
C
1/R
D
Unpredictable
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✅ Correct Answer: 1
44
Which of the following statement is true?
A
Lead network is composed of capacitor only
B
Lag network is composed of inductor only
C
Lead network is composed of resistance only
D
Lead network and lag network is composed of resistance and capacitor
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✅ Correct Answer: 4
45
Tuned LCR circuit forms band-pass filters.
A
True
B
False
C
all of the above
D
None of the mentioned
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✅ Correct Answer: 1
46
Why dynamic compensation is used?
A
To increase pass band
B
To increase cut off frequency
C
To improve dynamic performance
D
None of the mentioned
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✅ Correct Answer: 3
47
Output of a bimetallic element will be _______
A
Strain
B
Pressure
C
Displacement
D
Voltage
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✅ Correct Answer: 3
48
Which of the following can be used for measuring temperature?
A
Metallic diaphragm
B
Fluid expansion system
C
Capsule
D
Bourdon tube
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✅ Correct Answer: 2
49
IPTS stands for _________
A
International Practical Temperature Scale
B
Indian Primary Temperature Scale
C
International Primary Temperature Scale
D
International Practical Temperature Standard
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✅ Correct Answer: 1
50
In liquid in steel bulb thermometer, which liquid can be used for measuring temperature up to 60000C?
A
Mercury
B
Ether
C
Water
D
None of the mentioned
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✅ Correct Answer: 1
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