List of top Questions asked in CBSE CLASS XII

The shortcut key in a spreadsheet for making the text bold is _________ .
_________ is a state of feeling upset, annoyed and hopeless.
People who always believe that they are more important than others suffer from ________ personality disorder.
All interrogative sentences end with a/an _________ .
Explain the working principle of three-phase induction motor with its advantages.
Explain the construction and working principle of a room cooler. Draw a diagram of internal structure of a room cooler.
What can we do to help prevent manual handling injuries in the workplace?
With the help of diagram, explain the working principle of capacitor start motor.
What are the advantages and disadvantages of Dynamometer wattmeter? Write the different types of Dynamometer wattmeters.
Why is starter necessary in DC motor? Explain its working in brief.
With the help of a diagram, explain the working of a universal motor.
With the help of diagram, explain basic construction and working principle of a transformer.
Draw a diagram showing resistance in an AC circuit and the voltage and current waveform.
Write the main components of immersion heater.
Write the safety measure precautions of a transformer from the operational point of view.
What are the possible faults in electric mixer? How are they removed?
Explain the characteristics and applications of DC compound motor.
Briefly explain the importance of green jobs in different sectors of the economy.
What are the barriers faced by an individual in becoming an effective entrepreneur?
Write down the steps for entering a text box in the slide.
Self-motivation is significant in building one’s personality. Comment.
List out any four steps of Active listening.
What is the function of Diode in a digital multimeter?
The advantage of three-phase induction motor is:
What is CPR in first aid?