Kerala PSC Previous Years Question Paper & Answer
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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Technical Superintendent (Engineering) Kerala Co operative Milk Marketing Federation Limited' And exam conducted in the year 2020. And Question paper code was '012/2020'. 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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A 6.9 kV transmission line is connected to a transformer having 1500 turns on the
primary and 24 turns on the secondary. If the load across the secondary has an
impedance of 5 Ohms. then the secondary voltage 15 :
) 7 (B) 1104V
(ಲ) 55.9% (D) None of the above
A 4 pole, 250 kW, 750V dc generator has a lap winding on the armature. The current
carried by the armature coils is :
(^) 8325A (B) 100A
(0) 50 യ 41.63A
A de shunt motor is used in :
(A) Lifts (B) Cranes
(C) Lathe (D) None of the above
A 4 pole de motor with armature winding resistance of 0.5 Ohm receives a supply له
220 V. If the back emf produced during running condition is 210 V, the armature
current is :
(^) ۸ (®) ۸
©) 5A യ 40A
The nominal speed of a three phase, 12 pole induction motor is excited by a 60 Hz
source at a full load slip of 6% is :
(^) 600 rpm (B) 564 rpm
(C) 636 rpm (D) None of the above
The incorporation of synchronous condenser in the power system :
(A) Has no effect on power system stability
(B) Decreases power system stability
(C) Improves power system stability
(D) None of the above
If the input to the prime mover of an alternator is kept constant and the excitation is
changed, then the :
(A) Reactive component of the output is changed
(B) Active component of the output is changed
(C) Power factor of the load remains constant
(D) Power factor of the load is reduced
012/2020 6 A
