Kerala PSC Previous Years Question Paper & Answer
Page:10
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Instructor Gr I (Electrical Engineering) - Technical Education' And exam conducted in the year 2020. And Question paper code was '059/2020'. 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.
059/20
62. In a single-phase power factor meter, the phase difference between the currents in
the two pressure coils is
A) Exactly 0°
B) Approximately 0°
C) Exactly 90°
D) Approximately 90°
63. In PLC Ladder logic programming consists of
A) Logic gate symbols and connecting lines
B) Virtual relay contacts and coils
C) Function blocks and connecting lines
D) Text based codes
64. The equipment or element which can reduce Ferranti effect
A) Relay B) Circuit breaker
C) Resistors D) Current limiting reactors
65. Transmission lines are transposed to
A) Reduce copper loss
B) Reduce skin effect
C) Prevent interference with neighbouring telephone lines
D) Prevent short circuit between any two lines
66. An isolated device used to protect a PLC from incoming surge from fields
A) Transformer B) Transducer
©) ൧൦ D) DAG
67. Which of the following represent active transducer ?
A) Strain gauge B) Thermistor
C) LVDT D) Thermocouple
68. Fusing factor is defined as the ratio between
A) Maximum fusing current and rated voltage
B) Maximum fusing current and rated current
C) Minimum fusing current and rated current
D) Minimum fusing current and rated voltage
A 75