Kerala PSC Previous Years Question Paper & Answer
Page:6
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Tradesman (Electronics) - DEPARTMENT : Technical Education ' And exam conducted in the year 2022. And Question paper code was '102/2022'. 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.
42. What is the term Stands for TRIAC?
(^) 781066 alternate Control ൯ TRIode DC
(0) 711006 AC Semiconductor (D) ൩൯൦0൦ Access Console
48. Whena TRIAC is ON the Current flowing between MT1 and MT2 15 known as?
(A) Holding Current (B) Safe Current
(C) Principal Current (D) Leakage Current
44. The resistance between Anode and Cathode of SCR in Quick Test Method is :
(^) Very low resistance (B) Infinite Resistance
(C) Low Resistance (D) High Resistance
45. How many Semiconductor Layers are used in UJT Fabrication?
(A) 8 (B) 2
46. What is the advantage of MOSFET?
(A) Slow Switching Speed
(B) Fast Switching Speed
(C) Higher Power gate Signal
(D) Low thermal Ionisation of Electron-holes
47. BJT isa Current driven device, whereas IGBT is driven by :
(A) Gate Current (B) Collector current
(C) Gate Voltage (D) Collector Voltage
48. In Common Collector Amplifier Circuit the Output is taken from :
(A) Emitter (B) Collector
(C) Base (D) Both Base and Collector
49. Ina Cascaded Amplifier, the gain of 14 Stage Al is 100, Second Stage 2ھ is 20, third stage
൧3 is 10. The overall gain of :
(A) 100 (B) 130
(0 20 (D) 20,000
50. The Theoretical Efficiency of Class B Power Amplifier is :
(^) 50% (B) 78.5%
(C) 70% (D) 80%
102/2022 8 A