List of top Questions asked in CBSE CLASS XII- 2026

Write the precautions to be taken while using a single-phase motor. Also give its advantages and disadvantages over three-phase induction motor.

With control circuit diagram, explain the working of direct on-line motor starter.

What is a key characteristic of Schizoid personality disorder?

Explain the good handling technique of lifting heavy load manually at workplace.

What is a Digital multimeter? Write its features and draw its schematic block diagram.

Write possible faults that may occur in a Room Cooler and an Electric Geyser. How can these faults be removed?

Explain why a single-phase induction motor is not self-starting. What are the methods used to make it self-starting?

Explain the construction, working, and uses of a capacitor-start capacitor-run single-phase induction motor.

Draw a diagram showing inductance in an AC circuit with the voltage and current waveform.

Draw a labelled diagram of an Electric Mixer.

Explain the basic concept of transformer. Mention any two different types of transformers.

Explain in brief the different types of cooling systems used for transformers.

Write any two precautions to be taken while using an immersion heater.

Write one sentence of each type --- Statement, Question, Exclamatory, Order.

What do you understand by organisational skills? Which organisational skills help an entrepreneur to become successful?

List the importance of positive thinking in life.

Write the steps to protect a spreadsheet with a password.

List some ways by which one can reduce the amount of waste generated.

Mention general characteristics of DC shunt motor and its applications.

Speed of motor used in electric mixer has ________ RPM.

In a series RLC circuit, R indicates:

The efficiency of single-phase motor as compared to three-phase motor is:

Stator of three-phase induction motor is made by

Star delta motor starters are used for ________ motors.

Which transformer is known as a single winding transformer?