List of top Electronics Technology Questions asked in CBSE CLASS XII

Describe the safety issues in the manufacturing industries.
Explain the working of FAX machine.
With the help of block diagram, explain the working of digital sound recording.
Draw a labelled diagram of cathode ray tube.
With the help of diagram, explain the working of capacitance microphone.
What do you understand by loudspeaker enclosure?
Define dynamic range of a loudspeaker.
Why is biasing required in magnetic tape system? Write its types.
Draw a block diagram of a microwave oven.
Write two advantages and one disadvantage of CD/DVD player.
Write a short note on safety shorting probe.
Write some general causes of failure of TV receiver.
Write the features of a remote control.
“Stress is a natural response to challenges or demands.” Write any four ways to manage stress.
What types of data are used in a spreadsheet?
Which of the following devices can be used for microwave generation?
“Active listening is an art.” Give any four factors that affect active listening.
How can an entrepreneur develop decisiveness?
Write any four benefits of green jobs.
What is the main property of organic photoconductive material that is coated in the drum of a laser printer?
The mixer of a TV receiver is a/an ________ port device.
In DTMF, the circuit operates over the supply voltage range from
There are ________ number of pins in RJ11 connector.
Which of the following is an impact printer?
________ separates video signal from composite signal.