This set of Instrumentation Transducers test focuses on “Electro Chemical Transducers”.
1. Which of the following electrode/s is/are used for measuring electrode potential?
a) Reference electrode
b) Indicator electrode
c) Both reference and indicator electrode
d) None of the mentioned
View Answer
Explanation: Both reference and indicator electrodes are used for measuring electrode potential.
2. Which of the following conversion take place in the galvanic cell and electrolytic cell?
a) Chemical energy to electrical energy without power supply
b) Electrical energy to chemical energy without power supply
c) Mechanical energy to chemical energy without power supply
d) None of the mentioned
View Answer
Explanation: Galvanic cell convert chemical energy to electrical energy and electrolytic cell need external power supply, both are not the same.
3. Which of the following can be used by NHE?
a) Reference electrode
b) Indicator electrode
c) Both reference and indicator electrode
d) None of the mentioned
View Answer
Explanation: Normal hydrogen electrode is only used as an indicator electrode.
4. Calomel electrode is made up of ______________
a) Mercurous chloride
b) Mercurous sulphide
c) Potassium chloride
d) Potassium sulphide
View Answer
Explanation: Mercurous chloride is known as calomel and calomel electrodes are used in reference electrodes.
5. Glass electrode is a/an ___________
a) Reference electrode
b) Indicator electrode
c) Calomel electrode
d) None of the mentioned
View Answer
Explanation: Glass electrode is made up of ion sensitive glass tip and is used as an indicator electrode.
6. Tip of indicator electrode will be ___________
a) Porous plug
b) Semipermeable membrane
c) Ion sensitive surface
d) Rigid glass
View Answer
Explanation: Tip of indicator electrode will be ion sensitive glass tip, which produces a potential difference on surface.
7. Resistance of glass electrode will be ____________
a) Very low
b) Very high
c) Zero
d) Infinity
View Answer
Explanation: Resistance of glass electrode will be high as between 10 and 103MHz due to the presence of glass membrane.
8. Which of the following represents pH of acidic medium?
a) Less than 7
b) Greater than 7
c) 0
d) 7
View Answer
Explanation: Material with pH value of less than 7 is known as acidic.
9. Ground isolation in bioelectric measurement is not important.
a) True
b) False
View Answer
Explanation: In bioelectric measurement system, ground isolation is important since it prevents shocks.
10. EEG signal range is _________
a) Less than 1µV
b) Between 1 and 10µV
c) Greater than 10µV
d) None of the mentioned
View Answer
Explanation: Electro Encephalograms range from 1 and 10µV.
Sanfoundry Global Education & Learning Series – Instrumentation Transducers.
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