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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name ' Junior Instructor (Mechanic Auto Electrical and Electronics) ' And exam conducted in the year 2023. And Question paper code was '002/2023'. 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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The output voltage of an alternator not depends on
A) rotor speed B) number of turns in starter winding
C) field current D) current regulator
In an electromagnet starter motor, the armature windings are made of
A) many loops of heavy wire B) few loops of heavy wire
C) few loops of thin wire D) many loops of thin wire
The flywheel ring gear has about 15 times as many teeth as the pinion. When starter
motor operates, if the armature spins at 3000 rpm, then the speed of the crankshaft is
A) 450 rpm B) 200 rpm
C) 2000 rpm D) 4500 rpm
The primary function of an over running clutch in the starter motor is
A) to transmit torque in both direction
B) to increase cranking speed
C) to prevent damage to armature from spinning at high speed
D) to engage the starter pinion with ring gear
The two types of fuses used in automobiles are
A) catridge and blade B) breaker and catridge
C) blade and breaker D) link and printed
The mostly used firing order of six cylinder engine is
A) 1-5-3-4-2-6 B) 1-3-5-2-4-6
C) 1-5-6-3-2-4 D) 1-5-3-6-2-4
Electronic ignition system consists of
A) make and break mechanism
B) solenoid switch
C) contact breaker mechanism
D) pulse generator or Hall-effect switch
In third brush generator, the third brush is placed somewhere where the flux
becomes
A) stronger at the higher speeds due to armature reactions
B) weaker at the higher speeds due to armature reactions
C) weaker at the lower speeds due to armature reactions
D) stronger at the lower speeds due to armature reactions
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