Kerala PSC Previous Years Question Paper & Answer
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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.
Question43:-The Bourdon-type pressure gauge operates based on the principle of
A:-Thermal expansion
B:-Capacitance sensing
C:-Elastic deformation
D:-Magnetic induction
Correct Answer:- Option-C
Question44:-A McLeod gauge is commonly used to measure
A:-Temperature
B:-Pressure
C:-Flow rate
D:-Humidity
Correct Answer:- Option-B
Question45:-A thermistor has temperature coefficient of -5% over a temperature
range of 25°C to 50°C. If the resistance of thermistor is 120Q at 25°C, what is the
resistance of at 40°C?
A:-350
8:-250
C:-27.50
0:-300
Correct Answer:- Option-D
Question46:-Which of the following is not the governing principle of variable
inductance transducers?
A:-Change of self-inductance
B:-Change of mutual inductance
C:-Production of eddy currents
D:-Change of differential inductance
Correct Answer:- Option-D
Question47:-As the basic principle of radiation pyrometer, the total thermal energy
of the radiation emitted by a black body is proportional to power of the
temperature of the hot body
A:-First
B:-Second
C:-Third
D:-Fourth
Correct Answer:- Option-D
Question48:-In the liquid level measuring system with float the force applied on the
measuring device is
A:-F=mg+ghA