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 'Instrument Mechanic' And exam conducted in the year 2023. And Question paper code was '158/2023/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was ''. 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.
Question11:-What is the shape of voltage wave form generated by a coil rotating in
a uniform magnetic field?
A:-Sine wave
B:-Square wave
C:-Triangular wave
D:-Sawtooth wave
Correct Answer:- Option-A
Question12:-The time required to produce one complete cycle is called?
A:-Frequency of the wave form
B:-Form factor of the wave form
C:-Cycles per second of the wave form
D:-Period of the wave form
Correct Answer:- Option-D
Question13:-How inductance of a coil is decreased?
A:-By increasing no.of turns of the coil
B:-By increasing cross sectional area of core
C:-By increasing spacing between the turns
D:-By decreasing spacing between the turns
Correct Answer:- Option-C
Question14:-What is the capacitance of a capacitor that requires 0.5 coulomb to
charge it to 50 volts?
A:-0.01 பா
B:-0.01 F
C:-250 F
D:-25 UF
Correct Answer:- Option-B
Question15:-In RLC series circuit, at which condition the current through the circuit
is maximum?
هدم
B:-R=Xc¢
(=
D:+(X1+Xc)=R
Correct Answer:- Option-C
Question16:-At what condition the RLC parallel circuit behaves as capacitive
circuits?
A:-Frequency is higher than resonance frequency
B:-Frequency is less than resonance frequency