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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 (TECHNICAL POWER ELECTRONICS SYSTEM) ' And exam conducted in the year 2017. And Question paper code was '078/2017/OL'. 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.
C:-Is inversely proportional to the applied load
D:-Becomes zero when load is applied
Correct Answer:- Option-C
Question29:-The basic unit of inductance is
A:-Farad
B:-Webber
C:-Henry
D:-Hertz
Correct Answer:- Option-C
Question30:-Inductive reactance of a coil is directly proportional to the
A:-Alternating current following through it
B:-Induced emf in it
:-Frequency of AC flowing through it
D:-All the parameters mentioned at A, B and C
Correct Answer:- Option-D
Question31:-Two capacitors C1 = 1 nf and C2 = 10 nf, are connected in series and applied to the battery voltage V = 11V.
What are the voltages across the capacitors?
A:-VC1 = 5.5 V; VC2 =5.5V
B:-VC1 = 10 V; VC2 =1V
C:-VC1 = 1۷:۷۲۵ ۷ء
D:-VC1 = OV; VC2 = 11V
Correct Answer:- Option-B
Question32:-Mutual induction is obtained by placing two current carrying coils
A:-Side by side close to each other
Perpendicular to each other
C:-Far away from each other
D:-Both (1) and (2) above
Correct Answer:- Option-A
Question33:-The fundamental unit of measurement of resistance is
A:-Ohm
B:-Milli ohm
C:-Kilo ohm
D:-Mega ohm
Correct Answer:- Option-A
Question34:-For measuring unknown resistance, initially choose
A:-The highest ohms range
B:-The lowest ohms range
C:-Any ohms range
D:-R x 10 ohms range
Correct Answer:- Option-A
Question35:-When three resistors R1, R2 and R3 are connected in series, the total resistance *"R_T" ="
A:-R1 + R2 + R3
B:-R1 x R2 x R3
C:-1/R1 + 1/82 + 3
D:-1/R1 x 1/R2 x 1/R3
Correct Answer:- Option-A
Question36:-Magnetic lines are concentrated at
A:-At the centre of magnet
B:-Any one end of the magnet
C:-Along the magnet uniformly
D:-Both the ends of the magnet
Correct Answer:- Option-D
Question37:-Generation and distribution of AC power in India is normally
A:-Single phase
B:-3 phase
C:-2 phase
D:-Either 2 phase or 3 phase
Correct Answer:- Option-B
Question38:-The principle of operation of universal motor, similar to