Kerala PSC Previous Years Question Paper & Answer
Page:3
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'LABORATORY TECHNICAL ASSISTANT MAINTENANCE AND REPAIRS OF DOMESTIC APPLIANCES VHSE' And exam conducted in the year 2015. And Question paper code was '032/2015'. 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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24.
A 6 pole, 50Hz, slip ring Induction motor runs at full load slip of 4%, the full load speed is :
(A) 1000 rpm
(Cy 960 rpm
Internal barrier voltage for silicon is :
(ಯ 7۷
(ಲ) 0.2%
AND gate has an output of 1 when :
ക്ര both inputs are 1
(C) both inputs are 0
Emitter region of the transistor is :
(५) Very lightly doped
(¢) Heavily doped
The ripple factor of a bridge rectifier is :
മ 151
© 07
Kirchoff's law is applicable to :
(ಗಿ) de circuits
(0 both ac and de circuits
The value of coefficient of coupling is always :
(ಯ) equaltol
(C) less than 1
Ideal voltage source has :
(ಗಿ) Zero internal impedance
)© Low internal impedance
Armature reaction in de motor results in :
نیف decrease in speed
(0 short circuit
(B)
(D)
(0)
(D)
(0)
തു
(8)
(1)
رین
)0(
(1)
യു
B
യു
രു
o)
08
(0)
1040 rpm
950 rpm
03V
0.07V
any one of the input is 1
none of the above
Moderately doped
Lightly doped
0.3
0.48
ac cireuits
none of the above
greater than 1
equal to 0
Infinite internal impedance
High internal impedance
increase in speed
open eircuit
32/2018
1௩01
