Isometric view is a ______________ dimensional view and it looks realistic.

Tap is a _____________ tool used to make threads in the inner part of a job.

Which objects conduct electricity only in certain situations or mediums?

Which device is used to convert the DC voltage from the battery into AC voltage?

The distance by which the piston moves in an up-down or upward downward direction inside the cylinder is called the ____________ of the pump.

What is the SI unit of energy?

Which motor works on both AC and DC supply?

Which device is used to store electric energy temporarily?

______________ are used to trap the solar energy received and convert it into a usable form of energy like electricity.

Biogas has 55-70%__________, 30-40% ___________ and traces of hydrogen sulphide.