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 'RANGE FOREST OFFICER' And exam conducted in the year 21. And Question paper code was '048/21'. 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.
02 048/21
24, Calculate the ON time, OFF time, free running frequency and duty cycle for the circuit given
below. (10 Marks)
47K
1pF
25. Derive Maxwell's equation in differential form from Ampere's law. (10 Marks)
26. ADC machine consists of a shunt and series winding with resistance 40 © and 0.03 (2 respectively. The
armature winding resistance is 0.03 Q and also has a brush drop of 2 V. Calculate the generated voltage,
in all the four operating modes, if the terminal voltage 15 250 V with a load current of 100 A. (10 Marks)
27. What are the time domain specifications of a second order underdamped system subjected to a
unit step input ? (10 Marks)
28. Explain digital data acquisition system with block diagram. (10 Marks)
29. Explain how to separate hysteresis and eddy current losses in a single phase transformer. (10 Marks)
30. Classify magnetic materials with examples on each category. (10 Marks)
31. From the given characteristic equation of a feedback control system, determine the range for k,
for the system is stable and the frequency of sustained oscillations. (10 Marks)
32. List out and explain various registers of 8085 microprocessor. (10 Marks)