Questions and answers for exam Preparation

MCQs

Total Questions : 22 | Page 2 of 3 pages

Question 11. ________________ biosensors are a class of electrochemical biosensors that transduce the biological recognition events caused by electroactive species at the sensing surface into a current signal for the quantification of an analyte within a sample matrix.

Amperometric
Dielectric
Immuno
Matrix

Discuss Question

Answer: Option A. -> Amperometric
Answer: (a).Amperometric

Question 12. The conventional electrochemical cell contains three separate electrodes.

True
False
May be True or False
Can't say

Discuss Question

Answer: Option A. -> True
Answer: (a).True

Question 13. The type of biosensors that make use of electrodes that are ion-selective in nature in order to transduce the biological response into an electrical signal is known as _______ biosensors.

conductive
potentiometric
tranducive
oscillatory

Discuss Question

Answer: Option A. -> conductive
Answer: (a).conductive

Question 14. _________ refers to the measurement of the charge of electroactive species adsorbed on to an electrode with respect to time.

Chronocoulometry
Colorimetry
Spectroscopy
Conductivity

Discuss Question

Answer: Option A. -> Chronocoulometry
Answer: (a).Chronocoulometry

Question 15. In __________ information about an analyte is obtained by measuring the current as the potential is varied.

voltammetry
volumetric
conductive
transductive

Discuss Question

Answer: Option A. -> voltammetry
Answer: (a).voltammetry

Question 16. ______________ relaxation as a whole is the result of the movement of dipoles (dipole relaxation) and electric charges (ionic relaxation) due to an applied alternating field.

Dielectric
Capacitor
Transducer
Electrochemical

Discuss Question

Answer: Option A. -> Dielectric
Answer: (a).Dielectric

Question 17. Debye relaxation is the dielectric relaxation response of an ideal, non-interacting population of dipoles to an alternating external electric field.

True
False
May be True or False
Can't say

Discuss Question

Answer: Option A. -> True
Answer: (a).True

Question 18. _______________ relaxation comprises ionic conductivity and interfacial and space charge relaxation.

Ionic
Dielectric
Conductive
Spectroscopic

Discuss Question

Answer: Option A. -> Ionic
Answer: (a).Ionic

Question 19. __________ is the ability of many materials (specifically ceramics) to become polarized under an applied electric field.

Paraelectricity
Ferrielectrecity
Neitrielectricity
Dielectricity

Discuss Question

Answer: Option B. -> Ferrielectrecity
Answer: (b).Ferrielectrecity

Question 20. A dielectric resonator oscillator (DRO) is an electronic component that exhibits resonance of the polarization response for a narrow range of frequencies, generally in the microwave band.