R4RIN – MCQs, Mock Tests | Analytical instruments Analytical Instrumentation MCQ Question Set 22

Which of the following is not possible?

1. Constant current potentiometer
2. Constant resistance potentiometer
3. Thermocouple potentiometer
4. None of the mentioned

✅ Correct Answer: 4

Galvanometer is used for ________

1. Calibration of potentiometer
2. Indication of null position
3. Providing stability
4. All of the mentioned

✅ Correct Answer: 2

Power consumption of unknown source connected will be ________

1. Very high
2. Very low
3. Zero ideally
4. Always constant

✅ Correct Answer: 3

A potentiometer cannot be used for calibration of ammeter.

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

✅ Correct Answer: 2

Which of the following devices cannot be used potentiometer as calibrating device?

1. Wattmeter
2. Energy meter
3. Voltmeter
4. Ammeter

✅ Correct Answer: 2

At null position, galvanometer reading will be __________

1. Maximum
2. Zero
3. Unchanged for further reading
4. None

✅ Correct Answer: 2

Hot wire anemometer can be used to measure ______

1. Flow rate of non-conducting liquid
2. Flow rate of conducting liquid
3. Liquid level measurement
4. pH of liquid

✅ Correct Answer: 1

Hot wire anemometer is an application of ___________

1. Resistive transducer
2. Inductive transducer
3. Capacitive transducer
4. Thermo electric transducer

✅ Correct Answer: 1

sI unit of thermal conductivity is _______

1. W/m K
2. W
3. K
4. W2/m K

✅ Correct Answer: 1

Which of the following represents opposition to heat flow?

1. Thermal resistance
2. Thermal opposition
3. Thermal reactance
4. Thermal barrier

✅ Correct Answer: 1

Which of the following factors affect thermal conductivity?

1. Temperature
2. Chemical phase
3. Thermal anisotropy
4. All of the mentioned

✅ Correct Answer: 4

What is ‘Righi Leduc-effect’?

1. Effect of magnetic field on thermal conductivity
2. Effect of chemical phase on thermal conductivity
3. Effect of temperature on thermal conductivity
4. None of the mentioned

✅ Correct Answer: 1

Under phase change, thermal conductivity remains constant.

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

✅ Correct Answer: 2

When anisotropy is present, direction of heat flow and thermal gradient will be same.

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

✅ Correct Answer: 2

Insulation property of an insulator decrease in ________

1. Dry condition
2. Moisture
3. Powdered form
4. Compressed state

✅ Correct Answer: 2

Which of the following describes molecule movement in gas and liquid?

1. Conduction
2. Convection
3. Radiation
4. Diffusion

✅ Correct Answer: 2

Beam balance is used for _________

1. Weight comparison
2. Pressure comparison
3. Density comparison
4. None of the mentioned

✅ Correct Answer: 1

In electromagnetic balance system, horizontality is detected by ______

1. Photo electric cell
2. Direct vision
3. Galvanometer
4. Detector circuit

✅ Correct Answer: 1

Which of the following application in the balance system a PMMC device used for?

1. Restoring balance system
2. Oscillatory action
3. Detection of horizontality
4. None of the mentioned

✅ Correct Answer: 1

Null position is attained when _______

1. Two weight becomes equal
2. One becomes double of other
3. One becomes zero
4. No null position attained

✅ Correct Answer: 1

In balance system gain of amplifier is _____

1. Very low
2. Very high
3. Unity
4. Selected according to weight

✅ Correct Answer: 2

Torque of PMMC device is proportional to ______

1. Mass
2. Change in two masses
3. Balancing time
4. None of the mentioned

✅ Correct Answer: 2

Null detection can be accomplished by _________

1. Photo cell
2. Direct measurement
3. Pneumatic cell
4. All of the mentioned

✅ Correct Answer: 4

PMMC system always tend to make the system distract from null position.

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

✅ Correct Answer: 2

In a pneumatic balance system, restoring is done by _______

1. PMMC device
2. Bellows
3. Amplifier
4. Demodulator

✅ Correct Answer: 2

In a pneumatic balance system, developed output will be _____

1. Pressure variation
2. Current signal
3. Potential difference
4. None of the mentioned

✅ Correct Answer: 1

Process of physical deformation on application of electric field is described by ________

1. Electromagnetic property
2. Electro mechanical property
3. Magnetostriction property
4. Electrostriction property

✅ Correct Answer: 4

Who invented the piezoelectric effect?

1. Mary Elizabeth Barber
2. Christian Doppler
3. Marie curie and Pierre curie
4. Pierre curie and Jacques curie

✅ Correct Answer: 4

Which of the following represents piezoelectric materials?

1. ADP
2. Quartz
3. Bernilite
4. All of the mentioned

✅ Correct Answer: 4

Property of exhibiting electric polarization when exposed to intense electric field is known as _____

1. Electromagnetic effect
2. Ferromagnetic material
3. Ferroelectric materials
4. Piezoelectric materials

✅ Correct Answer: 3

Which of the following quantities cannot be measured using piezoelectric transducers?

1. Pressure
2. Strain
3. Acceleration
4. None of the mentioned

✅ Correct Answer: 4

Which of the following can be used conveniently at 1000c temperature?

1. Rochelle salt
2. ADP
3. Both ADP and Rochelle salt
4. None of the mentioned

✅ Correct Answer: 4

Which of the following type transducers are used in IC engines?

1. Monomorph
2. Dimorph
3. Multimorph
4. All of the mentioned

✅ Correct Answer: 3

______ are also known as piezopile.

1. Monomorph
2. Dimorph
3. Multimorph
4. None of the mentioned

✅ Correct Answer: 3

Piezoelectric accelerometer requires damping system.

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

✅ Correct Answer: 2

In piezoelectric strain transducer voltage developed is _____ to strain applied.

1. Directly proportional
2. Inversely proportional
3. Equal
4. Independent

✅ Correct Answer: 1

Which of the following represents correct conversion for magnetostrictive transducers?

1. Mechanical energy to magnetic energy
2. Mechanical energy to magnetic energy
3. Magnetic energy to electrical energy
4. Mechanical energy to acoustic energy

✅ Correct Answer: 1

Which of the following represents negative magnetostriction?

1. On increasing stress permeability decreases
2. On decreasing stress permeability decreases
3. On decreasing stress permeability decreases
4. None of the mentioned

✅ Correct Answer: 1

Which of the following element shows increase in magnetic flux density on decreasing stress applied?

1. Nickel Iron alloy
2. Nickel
3. Both Nickel and Nickel iron alloy
4. None of the mentioned

✅ Correct Answer: 2

Which of the following materials shows an increase in permeability with increase in tensile stress?

1. Negative magnetostriction materials
2. Non magnetostriction materials
3. Positive magnetostriction materials
4. None of the mentioned

✅ Correct Answer: 3

Magnetostrictive transducer can be used to measure _______

1. Force
2. Acceleration
3. Torque
4. All of the mentioned

✅ Correct Answer: 4

Which of the following represents the use of including additional mass in acceleration transducer?

1. To prevent system response to transverse acceleration
2. To prevent system response to linear acceleration
3. To prevent system response to angular acceleration
4. None of the mentioned

✅ Correct Answer: 1

Magnetostrictive transducers are more sensitive than piezoelectric transducers.

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

✅ Correct Answer: 2

Which of the following torque can be measured using magnetostrictive transducers?

1. Large amplitude torque
2. Small amplitude torque
3. Torque of an amplitude
4. Cannot be used to measure torque

✅ Correct Answer: 2

Which of the following represents correct expression for sensitivity in a magnetostrictive transducer?

1. ΔB
2. ΔB/σ
3. σ
4. σ/ΔB

✅ Correct Answer: 2

Magnetostrictive transducers can only be used in static forces.

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

✅ Correct Answer: 2

Hall Effect is a/an _____

1. Electronic
2. Magnetic
3. Magnetic
4. Ionizing

✅ Correct Answer: 3

At equilibrium Lorentz forces will be ____________ of Hall Effect force.

1. Double
2. Half
3. Equal
4. No proportionality

✅ Correct Answer: 3

Which of the following represents the correct expression of Lorentz force?

1. EH/b
2. eEH/b
3. eEH
4. None of the mentioned

✅ Correct Answer: 2

Hall potential is inversely proportional to magnetic flux density.

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

✅ Correct Answer: 2