List of top Electrical Technology Questions asked in CBSE CLASS XII

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 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.

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

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.

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

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

Draw a labelled diagram of an Electric Mixer.

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

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

Write the steps to protect a spreadsheet with a password.

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

List the importance of positive thinking in life.

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

Mention general characteristics of DC shunt motor and its applications.

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

Stator of three-phase induction motor is made by

Which transformer is known as a single winding transformer?

Star delta motor starters are used for ________ motors.

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

In a series RLC circuit, R indicates:

Speed of motor used in electric mixer has ________ RPM.

Torque and armature current characteristics are known as ________ characteristics. (Electrical Mechanical)