Instrumentation Transducers

Electro Chemical Transducers

Question 1
Marks : +2 | -2
Pass Ratio : 100%
Ground isolation in bioelectric measurement is not important.
True
False
Explanation:
In bioelectric measurement system, ground isolation is important since it prevents shocks.
Question 2
Marks : +2 | -2
Pass Ratio : 100%
Glass electrode is a/an ___________
Reference electrode
Indicator electrode
Calomel electrode
None of the mentioned
Explanation:
Glass electrode is made up of ion sensitive glass tip and is used as an indicator electrode.
Question 3
Marks : +2 | -2
Pass Ratio : 100%
Which of the following electrode/s is/are used for measuring electrode potential?
Reference electrode
Indicator electrode
Both reference and indicator electrode
None of the mentioned
Explanation:
Both reference and indicator electrodes are used for measuring electrode potential.
Question 4
Marks : +2 | -2
Pass Ratio : 100%
Which of the following represents pH of acidic medium?
Less than 7
Greater than 7
0
7
Explanation:
Material with pH value of less than 7 is known as acidic.
Question 5
Marks : +2 | -2
Pass Ratio : 100%
EEG signal range is _________
Less than 1µV
Between 1 and 10µV
Greater than 10µV
None of the mentioned
Explanation:
Electro Encephalograms range from 1 and 10µV.
Question 6
Marks : +2 | -2
Pass Ratio : 100%
Tip of indicator electrode will be ___________
Porous plug
Semipermeable membrane
Ion sensitive surface
Rigid glass
Explanation:
Tip of indicator electrode will be ion sensitive glass tip, which produces a potential difference on surface.
Question 7
Marks : +2 | -2
Pass Ratio : 100%
Calomel electrode is made up of ______________
Mercurous chloride
Mercurous sulphide
Potassium chloride
Potassium sulphide
Explanation:
Mercurous chloride is known as calomel and calomel electrodes are used in reference electrodes.
Question 8
Marks : +2 | -2
Pass Ratio : 100%
Resistance of glass electrode will be ____________
Very low
Very high
Zero
Infinity
Explanation:
Resistance of glass electrode will be high as between 10 and 103MHz due to the presence of glass membrane.
Question 9
Marks : +2 | -2
Pass Ratio : 100%
Which of the following can be used by NHE?
Reference electrode
Indicator electrode
Both reference and indicator electrode
None of the mentioned
Explanation:
Normal hydrogen electrode is only used as an indicator electrode.
Question 10
Marks : +2 | -2
Pass Ratio : 100%
Which of the following conversion take place in the galvanic cell and electrolytic cell?
Chemical energy to electrical energy without power supply
Electrical energy to chemical energy without power supply
Mechanical energy to chemical energy without power supply
None of the mentioned
Explanation:
Galvanic cell convert chemical energy to electrical energy and electrolytic cell need external power supply, both are not the same.