Kerala PSC Previous Years Question Paper & Answer
Page:17
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Materials Manager' And exam conducted in the year 2023. And Question paper code was '163/2023/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was ''. 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.
C:-Average capacitance will increase but the average inductance will decrease
D:-Average capacitance as well as average inductance will decrease
Correct Answer:- Option-C
Question80:-In a three unit insulator, the voltage stress across at the bottom most
unit is found to be 33.33 kV. Given that the string efficiency is 66.66%. Evaluate the
total voltage across the whole unit.
A:-50.0 kV
B:-11.11 kv
C:-33.33 kV
D:-66.66 kV
Correct Answer:- Option-D
Question81:-The maximum percentage error in the sum of two voltage
measurements when vi=75v +1% ೩೧೮ 7-500 35% 15
A:-1.8%
B:-2.6%
C:-3.2%
D:-2.2%
Correct Answer:- Option-B
Question82:-A moving coil of a meter has 200 turns, and a length and depth of 10
mm and 20 mm respectively. It is positioned in a uniform radial flux density of 300
mT. The coil carries a current of 60 mA. The torque on the coil is
A:-520 [1411
B:-620 uNm
C:-720 uNm
D:-820 uNm
Correct Answer:- Option-C
Question83:-The inductance of a certain moving iron ammeter is expressed as
2-346-08 . 1೧ control spring torque is sx10--Nm/radian. The deflection in radians for
a current of 3A is
A:-5.33
B:-2.73
C:-3.73
D:-3.33
Correct Answer:- Option-A
Question84:-Ratio of readings of two wattmeter connected to measure power in a
balanced 3-phase load is 2:1 and the load is inductive. The power factor of load is
A:-0.6 lag
B:-0.707 lag