Kerala PSC Previous Years Question Paper & Answer
Page:18
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Lecturer in Electronics and Instrumentation (Polytechnics)' And exam conducted in the year 2023. And Question paper code was '121/2023/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was ''. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
1550nm region of the spectrum
A:-InGaAsP
B:-A1GaAs
C:-InGa
D:-GaAs
Correct Answer:- Option-A
Question89:-How many electrodes are used in the clinical electroencephalography?
A:-20
B:-21
C:-10+20
D:-19
Correct Answer:- Option-B
Question90:-The radius of trajectory(r) of each charged particle in mass
spectrometer is depends on
Arik
ட;
ین
൧:൫൪
Correct Answer:- Option-C
Question91:-The flow cytometry sensor is used for
A:-Blood count
B:-Blood flow
C:-Blood pressure
D:-None of the above
Correct Answer:- Option-A
Question92:-Which Laser is NOT working in continuous wave (cw) mode of
operation
A:-Helium-Neon Laser
B:-Carbon dioxide Laser
C:-Argon Laser
D:-Ruby Laser
Correct Answer:- Option-D
Question93:-Unipolar chest electrode in ECG is measured with respect to
A:-Left Arm (LA) + Right Arm (RA) + Left leg (LL)
B:-Left Arm (LA) + Right Arm (RA)
C:-Left Arm (LA) + Left leg (LL)