Kerala PSC Previous Years Question Paper & Answer
Page:5
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'ASSISTANT ENGINEER ELECTRICAL DIRECT AND BY TRANSFER KSEB' And exam conducted in the year 2014. And Question paper code was '193/2014'. 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.
33.
34.
85. '
36.
37.
88.
39.
40.
Hysteresis loss varies with frequency fas :
مم 7 தச்
© ¢ یر(
Usual values of flux density B, for a power transformer using hot rolled silicon steel is :
ക 1.1 5 1.38 സില? . (B) 31.26% 1.4ಗ 10/1133
(6 1.55 Wh/m? 11 1.60 1.7 ४४४
The ratio of height to width of window while designing window dimensions of a transformer
can be between :
(ಗ) 2 0) 4
(0 4196 (D) none of these
Skewing of rotor slots in an induction motor helps in :
(ಗಿ) Improving heat transfer (0) Reducing noise
(C) Suppressing undesirable harmonics )0( श्रा the above
In induction motors larger ب سسسب تمع عتة عط noise level and ——————— cooling.
(A) increases — improves (18) reduces — improves
(6) reduces — reduces (D) none of the abhove
Alternators are usually rated in :
(ல KVA യു KVA and KW
(0 ٢٣ (D) KVA, KW and power factor
Due to skin effect the effective resistance ———————— with increase in frequency.
(ക) decreases (13) increases
(0) remains constant (D) none
The surge impedance of a transmission line is given by :
وي © 6ل ۵ش
(८ ८/7) D नल
7 193/2014
[P.T.0.]
