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 MECHANIC AUTO ELECTRICAL AND ELECTRONICS INDUSTRIAL TRAINING' And exam conducted in the year 2014. And Question paper code was '138/2014'. 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.
52. Cable joints are soldered for :
(५) Good mechanical strength
(B) Electrical conductivity
[0 To avoid corrosion
(D) All the above
53. The voltage induced in a conductor or coil by its own magnetic field is called :
(५) Mutually induced emf (0) Self induced emf
(C) Reactance voltage (D) Magneto motive force
54. In a centre tap circuit, if voltage between one end of secondary winding and centre tap is
300 V peak. Then PIV is :
(A) 300V (8) 100V (©) 150 ४ (2) 600%
55. A capacitor blocks :
(ಸ) AC but allow DC (0) DC but allow AC
(C) Both (D) None of the above
56. In a semiconductor, the energy gap between valence band and conduction band is nearly द
(A) ۷ (B) 15eV (©) 5 ९४ (D) 10 ९४
57. Reverse resistance of a diode is of the order of :
(ര 8 B 18 (ய) ಓಟ (D) M0
58. The light emitting diode (LED) :
(2) அலவி made from silicon
(B) Uses reversed biased junction
(ര Gives a light output which increase with increase in lemperature
(D) Depends on the recombination of holes and electrons
59. The input and output signals of a common-emitier amplifier are :
(ക) Always equal (18) Out of phase
(C) Always negalive (D) In phase
A 9 138/2014
(7.7.೧.
