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Analytical Instrumentation MCQ Question Set 19
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Analytical Instrumentation MCQ Question Set 19
1
Which of the following is used as indication instrument in a liquid expansion system?
A
Bellows
B
Bourdon tube
C
Ammeter
D
Thermometer
2
Which of the following is true for bimetallic type thermometer?
A
Two metals have same temperature coefficients
B
Two metals have different temperature coefficient
C
One metal is cooled always
D
None of the mentioned
3
When bimetallic thermometer heated, curling occurs to the side of metal with least temperature coefficients.
A
True
B
False
C
all of the above
D
None of the mentioned
4
Analogous quantities of heat flow and temperature in electrical are _______ and ________
A
Potential and current
B
Current and potential
C
Power and potential
D
Current and power
5
Ratio of net amount of heat received and stored in the body for certain time interval is known as _________
A
Temperature
B
Thermal coefficient
C
Thermal storage capacity
D
None of the mentioned
6
Heat transfer coefficient of a material with length l is _________
A
K/l
B
l/K
C
1/K
D
Kl
7
Which of the following device can be used for force measurement?
A
Beams
B
Bellows
C
Capsule
D
Bourdon tube
8
Load cells are used for measuring _____
A
Large weights only
B
Small weights only
C
Weights moving in high speed
D
Slowly moving weights
9
Which of the following can be measured using a Ring-type load cell?
A
Large weight
B
Small weight
C
Both large and small weights
D
None of the mentioned
10
Which of the following arrangements are used in load cells?
A
Tensile strain gauges
B
Compressive strain gauges
C
Both tensile and compressive strain gauges
D
None of the mentioned
11
Which of the following represents correct relationship for strain in ring-type load cell?
A
(1.08 F R)/(E b t2)
B
(F R)/(E b t2)
C
(1.08 R)/(E b t2)
D
(1.08 F )/(E b t2)
12
Which of the following conversion is correct for load cell?
A
Force to strain
B
Force to displacement
C
Force to voltage
D
Both force to strain and force to displacement
13
Diaphragm element can also be used for force measurement.
A
True
B
False
C
all of the above
D
None of the mentioned
14
Which of the following statement is true for force?
A
Force is a scalar quantity
B
Force is a vector quantity
C
Force is a dimensionless quantity
D
None of the mentioned
15
Which of the following statement is true for diaphragms?
A
Used for measuring small forces
B
Used for measuring large forces
C
Used for measuring dynamic forces
D
None of the mentioned
16
Load cells are primary transducers.
A
True
B
False
C
all of the above
D
None of the mentioned
17
Which of the following is detected using manometer devices?
A
Pressure difference between manometric and measuring liquid
B
pH difference between manometric and measuring liquid
C
Density difference between manometric and measuring liquid
D
None of the mentioned
18
What is the difference between water and transformer oil as a manometric liquid?
A
Water is used for large pressure differential
B
Transformer oil is used for large pressure differential
C
Transformer oil has evaporation problems
D
Water has evaporation problems
19
In which of the following categories be thin plate diaphragm included?
A
Primary transducer
B
Secondary transducer
C
Voltage measuring devices
D
Spring balance systems
20
Which of the following applications are suited for thin plate diaphragms?
A
Static pressure only
B
Dynamic pressure only
C
Both static and dynamic pressure with large frequency
D
Both static and dynamic pressure with small frequency
21
Using a membrane for measuring pressure, which of the following represents correct relation for displacement?
A
(R2 ΔP)/4S
B
ΔP/4S
C
(R2 ΔP)/S
D
(R2 ΔP)/2
22
Which of the following quantities can be measured using bellows?
A
Absolute pressure
B
Gauge pressure
C
Differential pressure
D
All of the mentioned
23
Which of the following conversion take place in bourdon tubes?
A
Pressure to displacement
B
Pressure to voltage
C
Pressure to strain
D
Pressure to force
24
‘Capsules are made from diaphragms’.
A
True
B
False
C
all of the above
D
None of the mentioned
25
‘In bellows pressure to displacement conversion takes place’.
A
True
B
False
C
all of the above
D
None of the mentioned
26
Which of the following devices convert pressure to displacement?
A
Diaphragm
B
Bellow
C
Capsule
D
Both diaphragm and capsule
27
Which of the following represents a moment of inertia of force acting tangential to a cylindrical rod?
A
FR
B
F/R
C
F2R
D
FR2
28
Which of the following devices can be used for measuring torque?
A
Helical spring
B
Flat spiral spring
C
Bellows
D
Diaphragm
29
Which of the following can be well suited for flat-spiral spring device?
A
Used for a very low torque range
B
Used for a very high torque range
C
Used for all ranges of torque
D
None of the mentioned
30
________ is used for measuring torque in rotating parts in machines.
A
Accelerometer
B
Dynamometer
C
Tachometer
D
None of the mentioned
31
Square cross sectional torsions bars are preferable than circular cross sectional torsion bars.
A
True
B
False
C
all of the above
D
None of the mentioned
32
Which of the following is true for torque measurement?
A
Measurement of applied force only
B
Measurement of length of arm
C
Measurement of force and length of arm
D
Measurement of velocity of material
33
Which of the following represents the correct relationship between angular displacement and torque?
A
Direct proportionality
B
Inverse proportionality
C
Equal magnitude
D
None of the mentioned
34
Torque can be measured using surface shear strains.
A
True
B
False
C
all of the above
D
None of the mentioned
35
Which of the following represents the correct position of strain gauges in torque measurement?
A
900 with each other
B
Parallel to shaft axis
C
Perpendicular to shaft axis
D
450 from shaft axis
36
A torsion bar of constant inner radius and length is applied with constant torque. What will happen for the angular displacement if outer radius of torsion bar is increased?
A
Increase
B
Decreases
C
Doubles
D
Halved
37
Which of the following is represented by a ratio of density of substance to density of water at 400c?
A
Specific gravity
B
Mass density
C
Weight density
D
Specific density
38
In air bubbler system, air pressure is measured.
A
True
B
False
C
all of the above
D
None of the mentioned
39
Which of the following cannot be used for density measurement?
A
Hydrometer system
B
Pitot-static device
C
Air bubbler system
D
U-tube system
40
Which of the following device doesn’t uses storage of liquid?
A
Manometer system
B
Hydrometer system
C
U-tube system
D
Air bubbler system
41
Manometer system cannot be used for measuring density.
A
True
B
False
C
all of the above
D
None of the mentioned
42
Which of the following represents the correct relationship of density and length of column?
A
Direct proportionality
B
Inverse proportionality
C
Equal
D
None of the mentioned
43
Which of the following represents relation for a pressure change in a column?
A
hϱg
B
hϱ
C
hg
D
n one of the mentioned
44
_______ can be used for measuring density.
A
Load cell
B
pH meter
C
Pitot static device
D
Mutimeter
45
Which of the following is used to represent mass per unit volume of a substance?
A
Mass density
B
Weight density
C
Specific density
D
None of the mentioned
46
Specific volume of all substances depends on ________
A
Temperature only
B
Pressure only
C
Both temperature and pressure
D
Temperature and pressure for some
47
Which of the following conversions take place in float element?
A
Level to force
B
Level to voltage
C
Level to displacement
D
None of the mentioned
48
In _____ system, float whose weight greater than liquid to be displaced is used.
A
Inverse float system
B
Displacer system
C
Magnifying float system
D
None of the mentioned
49
For float element, uniformity of density is important.
A
True
B
False
C
all of the above
D
None of the mentioned
50
Which of the following represents pressure of a liquid column with constant density?
A
ϱgh
B
ϱh
C
ϱg
D
None of the mentioned
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