R4RIN – MCQs, Mock Tests | Analytical instruments Analytical Instrumentation MCQ Question Set 18

What is the time constant for a resistor-capacitor network?

1. R
2. C
3. R/C
4. RC

✅ Correct Answer: 4

Cascading two first-order system doesn’t result in under-damped second order system.

1. True
2. False
3. all of the above
4. None of the mentioned

✅ Correct Answer: 1

Which of the following has transfer function G(S) = 1/(1+Sτ)?

1. First order low pass filter
2. First order high pass filter
3. Notch filter
4. None of the mentioned

✅ Correct Answer: 1

In which of the following categories RLC network can be included?

1. Zero-order system
2. First-order system
3. Second-order system
4. Third-order system

✅ Correct Answer: 3

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

1. 0.1
2. 1
3. 10
4. 0.01

✅ Correct Answer: 1

What is the Laplace transform of the component inductor?

1. sL
2. L
3. L/s
4. s2L

✅ Correct Answer: 1

How we can express Laplace transform of component capacitor?

1. Cs
2. C
3. 1/sC
4. 1/C

✅ Correct Answer: 3

What is the natural frequency of RLC circuit?

1. LC
2. RLC
3. √LC
4. 1/(√LC)

✅ Correct Answer: 4

What will be the transfer function of a body of mass M, in which input quantity is force and output quantity is displacement?

1. sM
2. s2M
3. 1/sM
4. 1/( s2 M)

✅ Correct Answer: 4

Mass and Moment of inertia are equivalent quantities.

1. True
2. False
3. all of the above
4. None of the mentioned

✅ Correct Answer: 1

Linear and torsional springs are used to provide ______and __________

1. Restoring force and torque respectively
2. Restoring torque and force respectively
3. Restoring torque only
4. None of the mentioned

✅ Correct Answer: 1

Restoring force of a spring under stress is F(s) = ________

1. X(s)
2. KX(s)
3. K
4. None of the mentioned

✅ Correct Answer: 2

Spring is a ___________ order system.

1. Zero
2. First
3. Second
4. Third

✅ Correct Answer: 2

Name the Friction which acts till the body starts moving?

1. Dynamic friction
2. Static friction
3. Viscous friction
4. None of the mentioned

✅ Correct Answer: 2

What will you call the friction between a relative motion of two bodies?

1. Static friction
2. Dynamic friction
3. Viscous friction
4. None of the mentioned

✅ Correct Answer: 3

What is the equivalent quantity of capacitance in the transfer function of the viscous force?

1. Viscous force
2. Viscosity
3. Damping coefficient
4. Inertia

✅ Correct Answer: 3

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. 1/(s2 j)
2. 1/j
3. 1/sM
4. None of the mentioned

✅ Correct Answer: 1

20N force is acting on a 5Kg body. What will be its rate of change of velocity?

1. 4m/s2
2. 5m/s2
3. 10m/s2
4. 2m/s2

✅ Correct Answer: 1

Tacho generators are ______

1. Zero-order system
2. First-order system
3. Second order system
4. None of the mentioned

✅ Correct Answer: 1

Current to force and current to torque conversion is possible only for a constant current source.

1. True
2. False
3. all of the above
4. None of the mentioned

✅ Correct Answer: 1

Which of the following represents transfer function of tacho-generators?

1. Kg
2. 1/Kg
3. SKg
4. S2Kg

✅ Correct Answer: 1

Transfer function of force motor is _______

1. Kg
2. SKg
3. Kf
4. SKf

✅ Correct Answer: 3

Most electrical indicating instruments are electromechanical systems since _________

1. They are used to measure electric component
2. They are more precise
3. They require no external power to operate
4. They convert electrical quantity to mechanical quantity

✅ Correct Answer: 4

Torque developed by a DC motor will be proportional to armature current.

1. True
2. False
3. all of the above
4. None of the mentioned

✅ Correct Answer: 1

Which of the following is the correct conversion in an electro mechanical system?

1. Electrical to electrical
2. Mechanical to electrical
3. Both electrical to mechanical and mechanical to electrical
4. Both electrical to mechanical and mechanical to electrical

✅ Correct Answer: 4

For a constant field dc motor, what is the relation between the mechanical time constant and armature resistance?

1. Direct proportionality
2. Inverse proportionality
3. Double
4. Equal

✅ Correct Answer: 1

Which of the following represents for torque speed characteristic for dc motor?

1. Positive slope
2. Negative slope
3. Slope zero
4. None of the mentioned

✅ Correct Answer: 2

What is the relation between eddy current damping coefficient and resistance in PMMC device?

1. Direct proportionality
2. Inverse proportionality
3. Constant
4. None of the mentioned

✅ Correct Answer: 2

What is the analogous quantity of current in the fluidic system?

1. Flow rate
2. Pressure
3. Viscosity
4. Density

✅ Correct Answer: 1

Which of the following device cannot be used for measuring the pressure of a liquid?

1. Diaphragm
2. Bellow
3. Bourdon tube
4. pH meter

✅ Correct Answer: 4

In laminar flow pressure changes are maximum.

1. True
2. False
3. all of the above
4. None of the mentioned

✅ Correct Answer: 1

Which of the following represents liquid manometer?

1. Zero order system
2. First order system
3. Second order system
4. Third order system

✅ Correct Answer: 3

What is the advantage of the pneumatic system over the hydraulic system?

1. Gases provide low compressibility
2. Gases provide high compressibility
3. Liquid shows high compressibility
4. None of the mentioned

✅ Correct Answer: 2

Which of the following represents hydraulic capacitance of manometer?

1. ϱΔV/ΔP
2. ΔV/ΔP
3. ϱΔP/ΔV
4. none of the mentioned

✅ Correct Answer: 1

Which of the following is not a scalar quantity?

1. Pressure
2. Density
3. Force
4. Viscosity

✅ Correct Answer: 3

Which of the following is used to represent a difference in pressure between absolute zero and atmospheric pressure?

1. Absolute pressure
2. Gauge pressure
3. Differential pressure
4. None of the mentioned

✅ Correct Answer: 2

What is the equivalent pressure in Pascal for 1atm pressure?

1. 101.3 Pa
2. 101.3 KPa
3. 50.4 Pa
4. 50.4 Kpa

✅ Correct Answer: 2

Which of the following is true for ideal filter frequency response?

1. Abrupt change from pass band to reject band
2. Smooth change from pass band to reject band
3. Contains only pass band
4. None of the mentioned

✅ Correct Answer: 2

Which of the following is true for low-pass filter?

1. Pass band less than cut-off frequency
2. Pass band greater the cut-off frequency
3. Pass band anywhere in frequency response
4. None of the mentioned

✅ Correct Answer: 1

Which of the following represents bridge-T filter?

1. Band pass filter
2. Low pass filter
3. High pass filter
4. Band reject filter

✅ Correct Answer: 4

Twin-T filter is band reject and Notch filter is band pass filter.

1. True
2. False
3. all of the above
4. None of the mentioned

✅ Correct Answer: 2

Notch filter belongs to __________

1. Zero-order system
2. First-order system
3. Second-order system
4. Third-order system

✅ Correct Answer: 4

Rejection frequency of notch filter can be expressed as __________

1. 1/RC
2. 1/C
3. 1/R
4. Unpredictable

✅ Correct Answer: 1

Which of the following statement is true?

1. Lead network is composed of capacitor only
2. Lag network is composed of inductor only
3. Lead network is composed of resistance only
4. Lead network and lag network is composed of resistance and capacitor

✅ Correct Answer: 4

Tuned LCR circuit forms band-pass filters.

1. True
2. False
3. all of the above
4. None of the mentioned

✅ Correct Answer: 1

Why dynamic compensation is used?

1. To increase pass band
2. To increase cut off frequency
3. To improve dynamic performance
4. None of the mentioned

✅ Correct Answer: 3

Output of a bimetallic element will be _______

1. Strain
2. Pressure
3. Displacement
4. Voltage

✅ Correct Answer: 3

Which of the following can be used for measuring temperature?

1. Metallic diaphragm
2. Fluid expansion system
3. Capsule
4. Bourdon tube

✅ Correct Answer: 2

IPTS stands for _________

1. International Practical Temperature Scale
2. Indian Primary Temperature Scale
3. International Primary Temperature Scale
4. International Practical Temperature Standard

✅ Correct Answer: 1

In liquid in steel bulb thermometer, which liquid can be used for measuring temperature up to 60000C?

1. Mercury
2. Ether
3. Water
4. None of the mentioned

✅ Correct Answer: 1