laboursonline – MCQs, Mock Tests | Analytical instruments Analytical Instrumentation MCQ Question Set 33

Which of the following causes acoustic emission in machineries?

1. Friction
2. Vibration
3. Turbulance
4. All of the mentioned

✅ Correct Answer: 4

Acoustic emission signals will be of the form ______

1. Discrete transients
2. Quasi continuous
3. Discrete or quasi continuous
4. None of the mentioned

✅ Correct Answer: 3

By placing sensor nearer to AE, SNR _______

1. Increases
2. Decreases
3. Doubles
4. No change

✅ Correct Answer: 1

PVDF inultrasonic scanning technique can be used at temperature _________

1. Less than 200C
2. Less than 700C
3. Greater than 1000C
4. None of the mentioned

✅ Correct Answer: 2

Thickness of PVDF film will be_________

1. Less than 100um
2. Less than 10nm
3. Less than 100mm
4. Less than 1cm

✅ Correct Answer: 1

Copolymer of PVDF has lower temperature capacity than PVDF.

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

✅ Correct Answer: 2

PVDF is _______________ material.

1. Piezoelectric
2. Magnetostrictive
3. Thermoelectric
4. Electrostrictive

✅ Correct Answer: 1

SNR is signal to noise ratio.

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

✅ Correct Answer: 1

Which of the following is used as a display device to produce a permanent record of data?

1. 7 segment display
2. Pen recorder
3. Electrode
4. Needle

✅ Correct Answer: 2

Resting potential has a magnitude of________

1. 70 mV
2. -70 mV
3. 20 mV
4. -20 mV

✅ Correct Answer: 2

Which of the following represents action potential?

1. 70 mV
2. -70 mV
3. 20 mV
4. -20 mV

✅ Correct Answer: 3

Signals generated by body signal is known as ________

1. Ionic voltage
2. Monitory signal
3. Magnetic signal
4. None of the mentioned

✅ Correct Answer: 1

Resting potential is always negative.

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

✅ Correct Answer: 1

Which of the following shows resting potential?

1. Depolarised cell
2. Polarised cell
3. Ionic cell
4. Resting cell

✅ Correct Answer: 2

Which of the following represents re polarisation in action potential wave?

1. Zero slop
2. Positive slop
3. Negative slop
4. None of the mentioned

✅ Correct Answer: 3

Process of changing resting potential to action potential is known as _______

1. Polarization
2. Re polarization
3. Depolarization
4. Uni polarization

✅ Correct Answer: 3

Action potential is varying over the cell.

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

✅ Correct Answer: 2

Which of the following have higher action potential propagation rate?

1. Nerve cell
2. Heart muscle
3. Thigh muscle
4. All of the mentioned

✅ Correct Answer: 1

CT stands for _______

1. Controlled tomography
2. Computerized tomography
3. Converted tomography
4. Comparison tomography

✅ Correct Answer: 2

Who invented Tomography?

1. Radon
2. Josef capek
3. Curie
4. Johnson

✅ Correct Answer: 1

Which of the following is used in tomography?

1. X ray
2. Gamma ray
3. UV ray
4. IR radiation

✅ Correct Answer: 1

ECT stands for ______

1. Electro cardio tomography
2. Electro capacitive tomography
3. Electro converging tomography
4. Electro Cornial tomography

✅ Correct Answer: 2

Which of the following is not possible?

1. ECT
2. ERT
3. Fibre optic tomography
4. None of the mentioned

✅ Correct Answer: 4

How many conductors are used in ERT?

1. 10
2. 12
3. 14
4. 16

✅ Correct Answer: 4

EMT is working on the basis of ________

1. Mutual inductance
2. Current flow
3. Self inductance
4. None of the mentioned

✅ Correct Answer: 1

Fibre optic tomography is used in particle size _________

1. Less than 10um
2. Less than 100um
3. Up to 1000nm
4. Up to 100nm

✅ Correct Answer: 2

Attenuation rate may vary in fibre optic tomography.

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

✅ Correct Answer: 1

A femto farad is equal to ______

1. 10-15 farad
2. 10-10 farad
3. 10-5 farad
4. 1010 farad

✅ Correct Answer: 1

All bodies behave as source of ________

1. Electromagnetic radiation
2. IR radiation
3. Ultra violet radiation
4. None of the mentioned

✅ Correct Answer: 1

Which of the following represent a spectrum of frequency emission?

1. Absorption spectra
2. Emission spectra
3. EM spectra
4. None of the mentioned

✅ Correct Answer: 2

Spectrography doesn’t compute the energy of frequency spectrum.

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

✅ Correct Answer: 2

Which of the following source is used for exciting bodies electrically?

1. DC arc
2. AC arc
3. Spark
4. All of the mentioned

✅ Correct Answer: 4

Which of the following is more used core in spectrometer?

1. Graphite
2. Carbon
3. Aluminium
4. Fullerine

✅ Correct Answer: 1

Which of the following represents emission spectra?

1. Continuous spectra
2. Band spectra
3. Line spectra
4. All of the mentioned

✅ Correct Answer: 4

Every spectrograph requires dispersion.

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

✅ Correct Answer: 1

Dispersion of radiation is carried out by _______

1. Prism
2. Grating
3. Both prism and grating
4. Diamond

✅ Correct Answer: 3

IR absorption pattern in absorption spectrography is known as______

1. Finger print
2. Signature
3. Absorption code
4. Graph

✅ Correct Answer: 1

Which of the following represents the fingerprint region?

1. Less than 7um
2. Between 7um to 15um
3. Greater than 15um
4. Greater than 100um

✅ Correct Answer: 2

Ozone layer is in earth layer ________

1. Toposphere
2. Ionosphere
3. Stratosphere
4. Mesosphere

✅ Correct Answer: 3

CFC causes ozone layer depletion.

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

✅ Correct Answer: 1

Ozone depletion is higher at ________

1. Polar regions
2. Near polar regions
3. Non polar regions
4. None of the mentioned

✅ Correct Answer: 1

Which of the following is not poisonous to humans?

1. Flue gases
2. Stack gases
3. HCl
4. None of the mentioned

✅ Correct Answer: 4

Toxic gases such as H2S, nitrogen oxides causes ________

1. Immediate harm to body
2. Slow harm to body
3. Not sure about speed of action
4. None of the mentioned

✅ Correct Answer: 1

NPL stands for _______

1. National population laboratory
2. National pollution laboratory
3. National physical laboratory
4. Net pollution list

✅ Correct Answer: 3

VOC stands for _______

1. Viable organic components
2. Volatile organic components
3. Varying organic components
4. Virtual organic carriage

✅ Correct Answer: 1

Which of the following represents the allowed rate of CO2?

1. Less than 5000ppm
2. Less than 700ppm
3. Less than 300ppm
4. Less than 100ppm

✅ Correct Answer: 3

Long path optical measurement uses _______

1. IR radiation
2. Ultraviolet radiation
3. Both IR and UV
4. None of the mentioned

✅ Correct Answer: 3

Long path optical measurement has a range of several kilometres.

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

✅ Correct Answer: 1

Which of the following is correct for proximity sensors?

1. Inductive type
2. Capacitive type
3. Ultrasonic wave type
4. All of the mentioned

✅ Correct Answer: 4

Which of the following person used the name robot first time in print?

1. Josef capek
2. Karel capek
3. Isaac asimov
4. None of the mentioned

✅ Correct Answer: 3

Principles of cybernetics was developed by _______

1. Josef capek
2. Norbert wiener
3. Isaac asimov
4. Karel capek

✅ Correct Answer: 2

Which of the following represents muscles of a robot?

1. Actuators
2. Power supply
3. Micro controllers
4. Robotic arm

✅ Correct Answer: 1

ZMP stands for _______

1. Zero movement power
2. Zero magnetic point
3. Zero moment point
4. Zero metric point

✅ Correct Answer: 3

L293D is a/an _______

1. Motor driver IC
2. Micro controller
3. Bluetooth module
4. IR receiver/transmitter

✅ Correct Answer: 1

ANN stands for ______

1. Artificial neural network
2. Arithmetic neural network
3. Artificial neural node
4. None of the mentioned

✅ Correct Answer: 1

In ANN, neurons are represented by _______

1. Processing element
2. Memory
3. Wires
4. None of the mentioned

✅ Correct Answer: 1

In ANN, all PE’s are connected with feedback.

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

✅ Correct Answer: 2

MLP is feed-forward network.

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

✅ Correct Answer: 2

Ion-isoconcentration technique is used for determination of _______

1. Humidity
2. Water in organic solvent
3. pH of solution
4. None of the mentioned

✅ Correct Answer: 2

Which of the following is immiscible in water?

1. Perchloro ethelyne
2. Ethanol
3. Acetone
4. All of the mentioned

✅ Correct Answer: 1