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 'VOCATIONAL INSTRUCTOR IN MAINTENANCE AND REPAIRS OF DOMESTIC APPLIANCES VOCATIONAL HIGHER SECONDARY EDUCATION DEPARTMENT' And exam conducted in the year 2017. And Question paper code was '144/2017'. 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.
89.
90
reactance of a transformer رع
1 6 ¢ heavy duty applicatior
15 the square of the current
i at no loac
torque of induetion ma is maximum, when
(६) خم stance per phase equal to rotor reactance per 1011
൫) ०५५८१ 00 tance per phas
%) rotor resistance நன ४८ reactance per phe
(1) tor resistance per ம equal to half - renctance per phass
in a de machine is to
A) Reduce loa (B) Reduce field winding laaking
C) Improve ¢ (D) Compensate for air gap variation
لفك commonly ground eable is
५) ( 1 (ॐ) பவம்
൭ Rubber ( Steel
v stored in a capacitor is
५) ल ண
(0) ८ ப நப
IfA = (6+ j8) and B'=(3—j4) then Ax R is
१). (15 (ए) (18— j2 24)
८) (5 ) D) (50
111 5001 « 101. the teaser transformer opere هه 0.866 of its rated
A ता मिट Current
( » Impedene:
1 pha 1೧೧೯೧ ೧116 ೧10 73
५) Varics with [ലി യ) 5 onatant at all load
) Varies with speed ( varies with power fact
12017
[7.1.೮.]
