Kerala PSC Previous Years Question Paper & Answer
Page:12
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Foreman (Electrical), Assistant Manager (Electrical) etc - Industries & Commerce, The Kerala Ceramics Ltd etc ' And exam conducted in the year 2022. And Question paper code was '075/2022'. 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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The Nyquist plot is given as
Re
The gain margin is
(A) 3 (8) -3.33
(C) 0.33 (D) -0.33
The resistance of a moving coil voltmeter is 13500 Q. The moving coil has 150 turns and
is 4 cm long and 3 cm wide. The flux density in the air gap is 5.5 x 10-2 Wb /m?. Find
the deflection torque produced by 150 V.
(A) 11x 105N-m رمق 1.5N-m
(C) 14N-m (0) 18 x 10-7N-m
Which of the following is not an integrating instrument ?
(A) Electrolytic meters (B) Motor meter
(C) Clock meter (D) Galvanometer
Calculate the shunt resistance required for converting a 2 mA meter with internal
resistance of 60 Q into 0-100 mA ammeter.
(A) 52 (8) 122೧
(൭ 2.2022 (0) 3.05೧
Fluid friction damping can be used for
(A) horizontally mounted instruments (8) vertically mounted instruments
(೮) both (A) and (8) (D) None
The sensitivity of an oscilloscope depends on
(A) gain of vertical amplifier (8) gain of horizontal amplifier
(C) sweep generator (D) None of the above
Power loss can be considerably reduced while testing energy meter by
(A) direct lamp loading (B) direct resistance loading
(C) phantom loading (D) direct R-L loading
Speed of rotation of Induction type energy meter can be controlled by
(A) _ adjusting the position of braking magnet
(8) reversing the supply terminals
(೮) reversing load terminals
(D) None of the above
075/2022 ` 12 A