Analytical instruments MCQ Quiz Hub

1. What is the time constant for a resistor-capacitor network?
R
C
R/C
RC

2. Cascading two first-order system doesn’t result in under-damped second order system.
True
False
all of the above
None of the mentioned

3. Which of the following has transfer function G(S) = 1/(1+Sτ)?
First order low pass filter
First order high pass filter
Notch filter
None of the mentioned

4. In which of the following categories RLC network can be included?
Zero-order system
First-order system
Second-order system
Third-order system

5. For an RC network with R=1KΩ and C=100µF. What will be the time constant of a system?
0.1
1
10
0.01

6. What is the Laplace transform of the component inductor?
sL
L
L/s
s2L

7. How we can express Laplace transform of component capacitor?
Cs
C
1/sC
1/C

8. What is the natural frequency of RLC circuit?
LC
RLC
√LC
1/(√LC)

9. What will be the transfer function of a body of mass M, in which input quantity is force and output quantity is displacement?
sM
s2M
1/sM
1/( s2 M)

10. Mass and Moment of inertia are equivalent quantities.
True
False
all of the above
None of the mentioned

11. Linear and torsional springs are used to provide ______and __________
Restoring force and torque respectively
Restoring torque and force respectively
Restoring torque only
None of the mentioned

12. Restoring force of a spring under stress is F(s) = ________
X(s)
KX(s)
K
None of the mentioned

13. Spring is a ___________ order system.
Zero
First
Second
Third

14. Name the Friction which acts till the body starts moving?
Dynamic friction
Static friction
Viscous friction
None of the mentioned

15. What will you call the friction between a relative motion of two bodies?
Static friction
Dynamic friction
Viscous friction
None of the mentioned

16. What is the equivalent quantity of capacitance in the transfer function of the viscous force?
Viscous force
Viscosity
Damping coefficient
Inertia

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?
1/(s2 j)
1/j
1/sM
None of the mentioned

18. 20N force is acting on a 5Kg body. What will be its rate of change of velocity?
4m/s2
5m/s2
10m/s2
2m/s2

19. Tacho generators are ______
Zero-order system
First-order system
Second order system
None of the mentioned

20. Current to force and current to torque conversion is possible only for a constant current source.
True
False
all of the above
None of the mentioned

21. Which of the following represents transfer function of tacho-generators?
Kg
1/Kg
SKg
S2Kg

22. Transfer function of force motor is _______
Kg
SKg
Kf
SKf

23. Most electrical indicating instruments are electromechanical systems since _________
They are used to measure electric component
They are more precise
They require no external power to operate
They convert electrical quantity to mechanical quantity

24. Torque developed by a DC motor will be proportional to armature current.
True
False
all of the above
None of the mentioned

25. Which of the following is the correct conversion in an electro mechanical system?
Electrical to electrical
Mechanical to electrical
Both electrical to mechanical and mechanical to electrical
Both electrical to mechanical and mechanical to electrical

26. For a constant field dc motor, what is the relation between the mechanical time constant and armature resistance?
Direct proportionality
Inverse proportionality
Double
Equal

27. Which of the following represents for torque speed characteristic for dc motor?
Positive slope
Negative slope
Slope zero
None of the mentioned

28. What is the relation between eddy current damping coefficient and resistance in PMMC device?
Direct proportionality
Inverse proportionality
Constant
None of the mentioned

29. What is the analogous quantity of current in the fluidic system?
Flow rate
Pressure
Viscosity
Density

30. Which of the following device cannot be used for measuring the pressure of a liquid?
Diaphragm
Bellow
Bourdon tube
pH meter

31. In laminar flow pressure changes are maximum.
True
False
all of the above
None of the mentioned

32. Which of the following represents liquid manometer?
Zero order system
First order system
Second order system
Third order system

33. What is the advantage of the pneumatic system over the hydraulic system?
Gases provide low compressibility
Gases provide high compressibility
Liquid shows high compressibility
None of the mentioned

34. Which of the following represents hydraulic capacitance of manometer?
ϱΔV/ΔP
ΔV/ΔP
ϱΔP/ΔV
none of the mentioned

35. Which of the following is not a scalar quantity?
Pressure
Density
Force
Viscosity

36. Which of the following is used to represent a difference in pressure between absolute zero and atmospheric pressure?
Absolute pressure
Gauge pressure
Differential pressure
None of the mentioned

37. What is the equivalent pressure in Pascal for 1atm pressure?
101.3 Pa
101.3 KPa
50.4 Pa
50.4 Kpa

38. Which of the following is true for ideal filter frequency response?
Abrupt change from pass band to reject band
Smooth change from pass band to reject band
Contains only pass band
None of the mentioned

39. Which of the following is true for low-pass filter?
Pass band less than cut-off frequency
Pass band greater the cut-off frequency
Pass band anywhere in frequency response
None of the mentioned

40. Which of the following represents bridge-T filter?
Band pass filter
Low pass filter
High pass filter
Band reject filter

41. Twin-T filter is band reject and Notch filter is band pass filter.
True
False
all of the above
None of the mentioned

42. Notch filter belongs to __________
Zero-order system
First-order system
Second-order system
Third-order system

43. Rejection frequency of notch filter can be expressed as __________
1/RC
1/C
1/R
Unpredictable

44. Which of the following statement is true?
Lead network is composed of capacitor only
Lag network is composed of inductor only
Lead network is composed of resistance only
Lead network and lag network is composed of resistance and capacitor

45. Tuned LCR circuit forms band-pass filters.
True
False
all of the above
None of the mentioned

46. Why dynamic compensation is used?
To increase pass band
To increase cut off frequency
To improve dynamic performance
None of the mentioned

47. Output of a bimetallic element will be _______
Strain
Pressure
Displacement
Voltage

48. Which of the following can be used for measuring temperature?
Metallic diaphragm
Fluid expansion system
Capsule
Bourdon tube

49. IPTS stands for _________
International Practical Temperature Scale
Indian Primary Temperature Scale
International Primary Temperature Scale
International Practical Temperature Standard

50. In liquid in steel bulb thermometer, which liquid can be used for measuring temperature up to 60000C?
Mercury
Ether
Water
None of the mentioned