CBSE Class XII Electronics Technology Question Paper 2025
Organisation : Central Board of Secondary Education (CBSE)
Class Name : 12th/HSC (Class XII)
Subject : Electronics Technology
Download : 2025 Exam Question Paper
Website : https://www.cbse.gov.in/cbsenew/question-paper.html
CBSE Class XII Electronics Technology Question Paper
Central Board of Secondary Education (CBSE) Class XII Electronics Technology 2025 Exam Question Paper.
Related / Similar Question Paper : CBSE Class XII Electronics and Hardware Question Paper 2025
CBSE Class XII Electronics Technology Questions
Section A: (Objective Type Questions)
1. Answer any 4 out of the given 6 questions on Employability Skills.
(i) It is important to clearly communicate instructions, ideas and concepts that can help you find success in any career. (True/False)
(ii) People who help and take care of others have ___________ personality trait. (Openness/Agreeableness)
(iii) Which of the following is not an internal motivational force ?
(A) Feedback
(B) Goals
(C) Needs
(D) Attitude
(iv) What is the default save type of a newly created spreadsheet ?
(A) ODF spreadsheet
(B) dBase
(C) Microsoft Excel
(D) Office Open XML spreadsheet
(v) Which of the following is not a green job ?
(A) Installing solar panels
(B) Installing solar water heaters
(C) Organic farming
(D) Installing diesel power plant
(vi) Which of the following is true for entrepreneurs ?
(A) All entrepreneurs must have great ideas all the time.
(B) One must know everything before starting a business.
(C) A lot of money is required to start any business.
(D) To be successful, entrepreneurs should be hardworking, energetic and perseverant.
2. Answer any 5 out of the given 7 questions:
(i) Almost all the accidents usually occur due to lack of safety. (True/False)
(ii) Identify the picture.
(A) RF hazard
(B) Safety goggles
(C) Hearing protection
(D) Laser hazard
(iii) Which of the following is not an occupational disease ?
(A) Jaundice
(B) Asthma
(C) COVID
(D) Hearing loss
(iv) The process of identification of hazards in the workplace and their associated effect on health is called evaluation. (True/False)
(v) Damaged cables must be repaired or removed from service immediately.
(vi) In three-prong plugs, the third prong works as :
(A) Earth path
(B) Phase path
(C) Neutral path
(D) Both earth and neutral path
(vii) Maintenance and servicing of machines in large manufacturing industries are done :
(A) At the beginning of the year
(B) At the end of the year
(C) At regular intervals of time
(D) When breakdown occurs
3. Answer any 6 out of the given 7 questions:
(i) Decibel is the unit used to measure sound intensity. (True/False)
(ii) A moving coil microphone is also called :
(A) Inductance microphone
(B) Condenser microphone
(C) Crystal microphone
(D) Dynamic microphone
(iii) Crystal microphones work based on :
(A) Electromagnetic induction
(B) Piezoelectric effect
(C) Resistance change
(D) Capacitance change
(iv) The loudspeaker driver used for low frequency range is called ___________ .
(v) Sound waves produced at the back of a loudspeaker are ___________ degrees out of phase with respect to sound waves produced in front.
(A) 90
(B) 180
(C) 270
(D) 360
(vi) What is the frequency range of flute ?
(A) 80 Hz – 650 Hz
(B) 250 Hz – 3 KHz
(C) 240 Hz – 2.5 KHz
(D) 80 Hz – 1 KHz
(vii) Ribbon tweeters are often used in place of horn loaded compression tweeters because :
(A) They can handle large output power.
(B) They give very good low frequency response.
(C) They give very good mid-frequency response.
(D) They can be mounted on the throat of the horn.
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