Kerala PSC Previous Years Question Paper & Answer
Page:14
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Junior Instructor (Electronic Mechanic)' And exam conducted in the year 2023. And Question paper code was '081/2023/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.
C:-Iron
D:-Lead
Correct Answer:- Option-C
Question71:-In semiconductor strain guage, when a tensile strain is applied,
A:-Resistance increases in n-type material
B:-Resistance increases in p-type material
C:-Resistance increases in both p and n type material
D:-Resistance decreases in both p and n type material
Correct Answer:- Option-B
Question72:-Thermocouple works on
A:-Seebeck effect
B:-Thomson effect
C:-Kelvin effect
D:-Peltier effect
Correct Answer:- Option-A
Question73:-The temperature of steam at around 540°C can be measured by
A:-Thermometer
B:-Thermopile
C:-Thermocouple
D:-Radiation pyrometer
Correct Answer:- Option-D
Question74:-In a thermistor, change in resistance is measured using a
A:-Wheatstone bridge
B:-Anderson's bridge
C:-Hay's bridge
D:-Maxwell's bridge
Correct Answer:- Option-A
Question75:-Capacitive transducers can be used for the measurement of liquid
level. The principle of operation used to this case is
A:-Change of capacitance with change of distance between plates
B:-Change of dielectric strength
C:-Change of area of plates
D:-None of the above
Correct Answer:- Option-B
Question76:-Inductive transducers are mainly used for the measurement of
A:-Temperature