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 'Lecturer in Tool and Die Engineering (Polytechnic Colleges) - Technical Education ' And exam conducted in the year 2021. And Question paper code was '005/2021'. 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.
23. 1൩൦ electrical energy consumption of a domestic consumer is measured in
(A) Ampere (B) MWh
(൭ Volt (D) kWh
24. An RLC series circuit has a resistance of 12 ohms inductive reactance of 7 ohms and
capacitive reactance of 2 ohms. The effective impedance of the circuit is
(A) 21 ohms (B) 13 ohms
(C) 15 ohms (D) 17 ohms
25. The device which gives protection from electrical shock is
(^) RCCB (B) MCB
(C) Fuse (0) Lightening Arrestor
26. The minimum voltage required to establish regulation in 7805 IC is
(A) 5V (B) 5.6V
(൭ 731% (D) 10V
27. A solid state relay uses the following for electrical isolation
(^) Flywheel diode (B) Opto coupler
(0) Snubber circuit (D) Electromagnet
28. Size of RAM and ROM in 8051 microcontroller is
(A) 128 bytes & 4 K bytes (B) 128 bytes & 8 K bytes
(C) 64 bytes & 4 K bytes (D) 64 bytes & 8 K bytes
29. The CDMA reverse channel employs the following modulation technique.
(^) BPSK (B) QPSK
(©) BFSK رم OQPSK
30. Which of the following UPS has highest efficiency 7
(^) Standby (B) Standby on-line hybrid
(C) Standby Ferro (D) Double conversion online
005/2021" 6