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 'Junior Instructor Mechanical Agricultural Machinery (SR for ST only)' And exam conducted in the year 2023. And Question paper code was '154/2023/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:-Non flowing current
D:-Nuclear energy
Correct Answer:- Option-B
Question40:-Both the inductance and resistance of a coil are doubled the value of
A:-Time constant is halved
B:-Initial rate of rise of current is doubled
C:-Final steady current is doubled
D:-Time constant remains unchanged
Correct Answer:- Option-D
Question41:-The phase difference between the primary and secondary voltage of a
transformer is
A:-Zero degree
B:-90 degree
C:-180 degree
D:-Between 30 degree and 60 degree
Correct Answer:- Option-C
Question42:-Choose the correct relation
A:-Potential = charge x capacity
B:-Charge = potential/capacity
C:-Potential = charge/capacity
D:-Capacity = potential x charge
Correct Answer:- Option-C
Question43:-Which is the advanced version of power electronic component used in
the output stage in drives?
A:-FET
B:-UJT
C:-SCR
D:-IGBT
Correct Answer:- Option-C
Question44:-Why most of semi-conductor devices are made by silicon compared to
Germanium?
A:-High barrier voltage
B:-High resistance range
C:-High thermal conductivity
D:-High current carrying capacity
Correct Answer:- Option-A
Question45:-Which type of biasing is required to an npn transistor for amplification?