CBSE Class 12 Marking Scheme 2022 for Electronics Technology

CBSE | DEPARTMENT OF SKILL EDUCATION ELECTRONICS TECHNOLOGY (SUBJECT CODE 820) CLASS XII (SESSION 2021-2022) MARKING SCHEME FOR TERM -1 Max. Time Allowed: 90 Minutes (1½ Hrs.) Max. Marks: 30 General Instructions: 1. Please read the instructions carefully 2. This Question Paper is divided into 03 sections, viz., Section A, Section B and Section C. 3. Section A is of 05 marks and has 06 questions on Employability Skills. 4. Section B is of 20 marks and has 25 questions on Subject Specific Skills. 5. Section C is of 05 marks and has 07 competency-based questions. 6. Do as per the instructions given in the respective sections. 7. Marks allotted are mentioned against each section/question. 8. All questions must be attempted in the correct order SECTION A Answer any 5 questions out of the given 6 questions on Employability Skills (1 x 5 = 5 marks) 1. Ans- B Listening is involuntary 1 2. Ans- A Silently 1 3. Ans- C Narcissistic 1 4. Ans- C Achievement, affiliation & Hunger, and thirst 1 5. Ans- B It opens the first worksheet 1 6. Ans- D Cell 1 SECTION B Answer any 20 questions out of the given 25 questions (1 x 20 = 20 marks) 7. Ans- A Anticipation, recognition, evaluation, and control of workplace hazards. 1 8. Ans- B Related to lead poisoning 1 9. Ans- B When any part of the human body comes in direct contact with an object 1 through which electric current is flowing. 10. Ans- A The quantity of current flowing through the body. 1 11. Ans- B discharging the capacitor of the devices before working. 1 12. Ans- A Poor maintenance. 1 820-MS-XII-Term 1(2021-2022) 1

13. Ans- (A) Cardiopulmonary resuscitation. 1 14. Ans- (B) Light amplification by stimulated emission of radiation. 1 15. Ans- (A) High radiation zone. 1 16. Ans- (C) Laser hazard 1 17. Ans- (A) Hand-to-hand. 1 18. Ans- (C) Carbon Microphone 1 19. Ans- (D) Both B and C 1 20. Ans- (C) Piezo-electric effect 1 21. Ans- (B) Decibel 1 22. Ans- (C) I is inversely proportional to Z 1 23. Ans- (B) Reproduction of highest frequencies. 1 24. Ans- (B) 500Hz-5kHz. 1 25. Ans- (C) Magnetic Tape 1 26. Ans- (A) Audio frequency signal. 1 27. Ans- (A) Erase the tape, Record the new signal, and reproduce the signal 1 28. Ans- (D) High frequency signal. 1 29. Ans- (B) Digital Versatile Disc. 1 30. Ans- (C) Analog to digital converter. 1 31. Ans- (D) Software is required for the write operation of the disc. 1 SECTION C (COMPETENCY BASED QUESTIONS) Answer any 5 questions out of the given 7 questions (1 x 5 = 5 marks) 32. Ans- (D) Iron 1 33. Ans- (D) Both A and C 1 34. Ans- (C) Both A and B 1 35. Ans- (D) Diarrhoea 1 36. Ans- (D) Manufacturing 1 37. Ans- (C) Both A and D 1 38. Ans- (D) Occupational 1 820-MS-XII-Term 1(2021-2022) 2