CAT Questions

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Materials that allow electricity to flow are called electrical conductors and that materials which does not allow electricity to flow are called Insulators.

Magnetic tape can serve as a Secondary storage unit. It is a medium for magnetic recording, made of a thin, magnetizable coating on a long, narrow strip of plastic film.

The Opening in a wall to let in air or light is nothing but a Window.

Net asset value (NAV) is value per share of a mutual fund or an exchange-traded fund (ETF) on a specific date or time. It  is the value of an entity's assets minus the value of its liabilities, often in relation to open-end or mutual funds, since shares of such funds registered with the U.S. Securities and Exchange Commission are redeemed at their net asset value.

Tetraethyl lead is a highly toxic compound used as a gasoline additive.

Tetraethyl lead abbreviated as TEL, is an organo lead compound with the formula (CH₃CH₂)₄Pb. It is a petro-fuel additive which in turn caused increased vehicle performance. This is also used as an antiknock agent in gasoline and jet fuels. Tetraethyl lead is absorbed rapidly by the skin, the lungs, and the gastrointestinal tract. It is converted to triethyl lead, which might be responsible for its toxicity.

The part of the earth and its atmosphere in which living organisms exist or that is capable of supporting life is called Biosphere.