Kerala PSC Previous Years Question Paper & Answer
Page:13
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.
A:-8cost(t)
B:-2cos(t)
C:--2cos(t)
D:-cos(t)
Correct Answer:- Option-B
Question61:-The purpose of equalizer rings in a lap winding DC machine is to
A:-Ilmprove commutation
B:-Reduce armature reaction
C:-Reduce harmonics
D:-Prevent the flow of circulating current through brushes
Correct Answer:- Option-D
Question62:-lf w; is the iron loss and w. is the copper loss of a transformer, the
maximum efficiency of the transformer occurs at
ரமா,
B:-w,=2w,
C:-w;=05w,
D:-w,=15w,
Correct Answer:- Option-A
Question63:-A shunt generator delivers 500 A at 250 V and the resistance of shunt
field and armature are 50 ohm and 0.01 ohm respectively. The generated emf is
A:-250V
B:-255 V
C:-255.05 V
D:-None of the above
Correct Answer:- Option-C
Question64:-A 20 KVA, 2000/200V single phase transformer has core loss of 300 W
and copper loss of 400 W at full load. The total losses at half full load will be
A:-400 W
B:-300 W
C:-200 W
D:-None of the above
Correct Answer:- Option-A