Orlan fibre which is used as a wool substitute is ________?

Cavitation in a centrifugal pump can be avoided by keeping the________?

Which of the following is the most important rubber compounding ingredient which is used to improve wearing qualities of both natural rubber & SBR by imparting toughness?

Green house gases blanket/block the infrared radiation from earth’s surface to the atmosphere leading to its progressive warming up. Which of the following gases does not exhibit green house effect?

The necessary condition for phase equilibrium in a multiphase system of N components is that the________?

Smog is ________?