Pick up the correct statement from the following:

The pigment used in paints for corrosive resistance, is

The cracks caused by shrinkage of the exterior surface of the wood exposed to atmosphere, are called:

Sewer pipes are made of

The lime which contains mainly calcium oxide and slacks with water, is

The vehicle used in case of enamel paints is usually

The pressure acting on the stones in stone masonry construction should be

Initial setting of cement is caused due to

For melting one tonne of cast iron