Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'ASSISTANT ENGINEER ELECTRICAL PLANTATION CORPORATION OF KERALA LTD' And exam conducted in the year 2018. And Question paper code was '029/2018'. 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.
Which one of the following method is not suited for starting a squirrel cage induction motor ?
(ಹ) DOL starting (8) Auto transformer starting
(ಲ) Star Delta starting (D) Rotor Resistance starting
What happens if single phasing occurs when a 3 phase induction motor is running at நத
full load ?
(^) Motor stops
(B) Motor stalls
(ಲ) Motor keeps running as 1 phase motor
(D) Motor keeps running as 3 phase motor
The rotor of an induction motor runs nearly at 1/7t of synchronous speed. This phenomenon
ശു Cogging ൫ Crawling
(C) Magnetic Locking (D) Magnetic breaking
For a double squirrel cage motor outer gauge resistance is that of inner cage
(ಹಿ) Less than (8) Greater than (ಲ) Equalto (D) Half
A universal motor runs at 2000 rpm and develops a back emf of 200 V, when connected to
220 V DC supply. At what speed will it run if the motor is connected to a 220 V AC supply.
Given that the back emf developed under this condition is 160 V approximately.
(A) 1600 rpm (B) 2000 rpm (ಲ) 2500 rpm (D) Zero
കുട the load on the alternator is varied, its terminal voltage changes due to the following
(5) Voltage drop due to armature resistance
(B) Voltage drop due to armature leakage reactance
(ಲ) Voltage drop due to armature reactance
(D) All the above
At Upf, Effect of armature reaction in alternator is
(5) Cross magnetising (B) De magnetising
(C) Magnetising (D) No effect
029/2018 10 A