Analytical instruments MCQ Quiz Hub

1. Which of the following is used as indication instrument in a liquid expansion system?
Bellows
Bourdon tube
Ammeter
Thermometer

2. Which of the following is true for bimetallic type thermometer?
Two metals have same temperature coefficients
Two metals have different temperature coefficient
One metal is cooled always
None of the mentioned

3. When bimetallic thermometer heated, curling occurs to the side of metal with least temperature coefficients.
True
False
all of the above
None of the mentioned

4. Analogous quantities of heat flow and temperature in electrical are _______ and ________
Potential and current
Current and potential
Power and potential
Current and power

5. Ratio of net amount of heat received and stored in the body for certain time interval is known as _________
Temperature
Thermal coefficient
Thermal storage capacity
None of the mentioned

6. Heat transfer coefficient of a material with length l is _________
K/l
l/K
1/K
Kl

7. Which of the following device can be used for force measurement?
Beams
Bellows
Capsule
Bourdon tube

8. Load cells are used for measuring _____
Large weights only
Small weights only
Weights moving in high speed
Slowly moving weights

9. Which of the following can be measured using a Ring-type load cell?
Large weight
Small weight
Both large and small weights
None of the mentioned

10. Which of the following arrangements are used in load cells?
Tensile strain gauges
Compressive strain gauges
Both tensile and compressive strain gauges
None of the mentioned

11. Which of the following represents correct relationship for strain in ring-type load cell?
(1.08 F R)/(E b t2)
(F R)/(E b t2)
(1.08 R)/(E b t2)
(1.08 F )/(E b t2)

12. Which of the following conversion is correct for load cell?
Force to strain
Force to displacement
Force to voltage
Both force to strain and force to displacement

13. Diaphragm element can also be used for force measurement.
True
False
all of the above
None of the mentioned

14. Which of the following statement is true for force?
Force is a scalar quantity
Force is a vector quantity
Force is a dimensionless quantity
None of the mentioned

15. Which of the following statement is true for diaphragms?
Used for measuring small forces
Used for measuring large forces
Used for measuring dynamic forces
None of the mentioned

16. Load cells are primary transducers.
True
False
all of the above
None of the mentioned

17. Which of the following is detected using manometer devices?
Pressure difference between manometric and measuring liquid
pH difference between manometric and measuring liquid
Density difference between manometric and measuring liquid
None of the mentioned

18. What is the difference between water and transformer oil as a manometric liquid?
Water is used for large pressure differential
Transformer oil is used for large pressure differential
Transformer oil has evaporation problems
Water has evaporation problems

19. In which of the following categories be thin plate diaphragm included?
Primary transducer
Secondary transducer
Voltage measuring devices
Spring balance systems

20. Which of the following applications are suited for thin plate diaphragms?
Static pressure only
Dynamic pressure only
Both static and dynamic pressure with large frequency
Both static and dynamic pressure with small frequency

21. Using a membrane for measuring pressure, which of the following represents correct relation for displacement?
(R2 ΔP)/4S
ΔP/4S
(R2 ΔP)/S
(R2 ΔP)/2

22. Which of the following quantities can be measured using bellows?
Absolute pressure
Gauge pressure
Differential pressure
All of the mentioned

23. Which of the following conversion take place in bourdon tubes?
Pressure to displacement
Pressure to voltage
Pressure to strain
Pressure to force

24. ‘Capsules are made from diaphragms’.
True
False
all of the above
None of the mentioned

25. ‘In bellows pressure to displacement conversion takes place’.
True
False
all of the above
None of the mentioned

26. Which of the following devices convert pressure to displacement?
Diaphragm
Bellow
Capsule
Both diaphragm and capsule

27. Which of the following represents a moment of inertia of force acting tangential to a cylindrical rod?
FR
F/R
F2R
FR2

28. Which of the following devices can be used for measuring torque?
Helical spring
Flat spiral spring
Bellows
Diaphragm

29. Which of the following can be well suited for flat-spiral spring device?
Used for a very low torque range
Used for a very high torque range
Used for all ranges of torque
None of the mentioned

30. ________ is used for measuring torque in rotating parts in machines.
Accelerometer
Dynamometer
Tachometer
None of the mentioned

31. Square cross sectional torsions bars are preferable than circular cross sectional torsion bars.
True
False
all of the above
None of the mentioned

32. Which of the following is true for torque measurement?
Measurement of applied force only
Measurement of length of arm
Measurement of force and length of arm
Measurement of velocity of material

33. Which of the following represents the correct relationship between angular displacement and torque?
Direct proportionality
Inverse proportionality
Equal magnitude
None of the mentioned

34. Torque can be measured using surface shear strains.
True
False
all of the above
None of the mentioned

35. Which of the following represents the correct position of strain gauges in torque measurement?
900 with each other
Parallel to shaft axis
Perpendicular to shaft axis
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?
Increase
Decreases
Doubles
Halved

37. Which of the following is represented by a ratio of density of substance to density of water at 400c?
Specific gravity
Mass density
Weight density
Specific density

38. In air bubbler system, air pressure is measured.
True
False
all of the above
None of the mentioned

39. Which of the following cannot be used for density measurement?
Hydrometer system
Pitot-static device
Air bubbler system
U-tube system

40. Which of the following device doesn’t uses storage of liquid?
Manometer system
Hydrometer system
U-tube system
Air bubbler system

41. Manometer system cannot be used for measuring density.
True
False
all of the above
None of the mentioned

42. Which of the following represents the correct relationship of density and length of column?
Direct proportionality
Inverse proportionality
Equal
None of the mentioned

43. Which of the following represents relation for a pressure change in a column?
hϱg
hϱ
hg
n one of the mentioned

44. _______ can be used for measuring density.
Load cell
pH meter
Pitot static device
Mutimeter

45. Which of the following is used to represent mass per unit volume of a substance?
Mass density
Weight density
Specific density
None of the mentioned

46. Specific volume of all substances depends on ________
Temperature only
Pressure only
Both temperature and pressure
Temperature and pressure for some

47. Which of the following conversions take place in float element?
Level to force
Level to voltage
Level to displacement
None of the mentioned

48. In _____ system, float whose weight greater than liquid to be displaced is used.
Inverse float system
Displacer system
Magnifying float system
None of the mentioned

49. For float element, uniformity of density is important.
True
False
all of the above
None of the mentioned

50. Which of the following represents pressure of a liquid column with constant density?
ϱgh
ϱh
ϱg
None of the mentioned