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 'Lineman-PWD (Electrical Wing) ' And exam conducted in the year 2021. And Question paper code was '131/2021'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. 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.
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A property of material which opposes the creation of magnetic flux in it is known as
(A) Magnetomotive force (B) Reluctance
(C) Permeance (D) Reluctivity
In electrical machines laminated cores are used with a view to reducing
(A) Hysteresis loss (B) Eddy current loss
(C) Copper loss (D) All of the above
The magnitude of induced e.m.f. is directly proportional tothe اس
(A) Rate of change of current
(B) Rate of change of flux linkage
(C) Constant value of current
(D) Constant value of flux linkage
Static electromagnetic induction is adopted in __
(A) Generators (B) Alternators
(C) Transformers (D) All of the above
Eddy currents produced in a core _
(A) Increase useful energy (B) Create loss of useful energy
(C) Strengthen the magnetic field (D) None of the above
For an inductance current is proportional to
(A) Magnetic field
(B) Voltage across the inductance
(C) Both magnetic field and voltage across the inductance
(D) Neither magnetic field nor voltage across the inductance
The electrical current is analogous to the magnetic circuit
(A) Flux (B) Reluctance
(C) Flux density (D) Permeability
Electric current is defined as
(A) Flow of electrons in a conductor
(8) Resistance offered in a circuit
(C) Potential difference in a circuit
(D) Electrons in atomic structure
31/2021