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 ' Junior Instructor(Technician Power Electronics System-TPES)' And exam conducted in the year 2023. And Question paper code was '125/2023'. 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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125/23
In a parallel circuit all components must
A
B
௦
D) Carry same current
) Have the same potential difference across them
) Have the different potential difference across them
) Have high resistance
)
Primary advantage of crystal oscillator is that
A) It can oscillate at any frequency
B) It gives high output voltage
C) Its frequency of oscillation remains almost constant
)
D) It operates on very low DC voltage
In a N channel JFET, if the Gate voltage Vgs is made more negative, then
A) Channel conductivity increases
B
0
D
)
) Channel conductivity decreases
) Depletion region decreases
) Channel current increases
What is the range of temperature setting on soldering work station for soldering SMD ICs ?
A) 100° C to 200° C 8) 200° C to 250° C
C) 250° C to 280° C D) 280° C to 400° C
Which material is used to make the drill bits for drilling PCB holes ?
A) Stainless steel B) High speed steel
C) High carbon steel D) Solid coated Tungsten carbide
What is the purpose of providing solder mask on the PCBs ?
A) Easy soldering
B) Remove conformal coating
C) Provide conformal coating
D) Prevent solder bridges