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 'Electrician in KSFDC, Tourism, Agriculture etc' And exam conducted in the year 21. And Question paper code was '121/21'. 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.
62. Solar cell are made of :
(^) Aluminum (B) Germanium
(C) 8111000 (D) Cadmium
63. Corona is accompanied by :
(A) Violet visible discharge in the darkness
(3) Hissing sound and power
(C) Vibration and radio interference
(D) ചി] of the above
64. The solar cell convert in:
(ಹ) Solar energy into electrical energy
(B) Solar energy into thermal energy
(C) Thermal energy into electrical energy
(D) Chemical energy into electrical energy
65. In welding purpose which type of DC generator is used :
(ಹ) DC shunt generator (B) DC series generator
( DC differential compound generator (D) DC cummulate compound generator
66. The running speed of a 3-phase squirrel cage induction motor is :
(^) The synchronous speed (B) Less than the synchronous speed
(C) More than the synchronous speed (D) Double the synchronous speed
67. In nuclear reactor usually function :
(A) | fission (3) fusion
(C) both fission and fusion (D) none of the above
68. Which supply source changes the polarity constantly?
(A) DC supply (B) Dynamic
(C) Battery (D) AC supply
69. The counter 6.൬. oppose :
(^) Current (B) Applied voltage
(C) Torque (D) Thermal voltage
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