Kerala PSC Previous Years Question Paper & Answer

Title : Technical Superintendent (Engineering) Kerala Co operative Milk Marketing Federation Limited
Question Code : A


Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Technical Superintendent (Engineering) Kerala Co operative Milk Marketing Federation Limited' And exam conducted in the year 2020. And Question paper code was '012/2020'. 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.

page: 2 out of 14
Excerpt of Question Code: 012/2020








The core of an iron cored coil is replaced by air, the inductance of the coil will :
(^) Increase (B) Decrease
(C) Remain the same (D) None of the above

The potential difference across the resistance, inductance and capacitance are 80V,
40V and 100V respectively in an L-C-R circuit. The power factor of the cireuit is :

(^) 1.0 (®) 04
(0) 5 D) 0.8
Form factor of a half rectified sine wave is :
(^) 1 (8) 1.57
(ಲ) 1.414 യ 1
The power measurement in an unbalanced 3-phase circuit can not be done by :
(A) Single wattmeter method (B) Two wattmeter method
(C) Three wattmeter method (D) Any one of the above methods

An instrument capable of measuring only de quantities :
(ಯ) Moving coil (B) Moving iron
(£) Induction type (D) None of the above

Kelvin double bridge is best suited for the measurement of :
(A) Inductance (B) Capacitance
(C) Low resistance (D) High resistance

The material used for making standard resistance is :
(A) Manganin (B) Aluminium
(C) Copper (D) Platinum

Creeping in energy meter can be eliminated by :
(A) Brake magnets
(B) Drilling diametrically opposite holes in the disc
(C) Using lag adjustment devices
(D) None of the above

The value of load factor is :
(A) Lessthan1 (B) Greater than 1
(0) Equaltol (D) None of the above

012/2020 4 A

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