571. Duco is one of the patent forms of
A. emulsion paints
B. plastic paints
C. bituminous paints
D. cellulose paints.

572. Varnish is a transparent or semi-transparent solution of resinuous substances in
A. alcohol
B. linseed
C. turpentine
D. all the above.

573. The most important constituent of an oil paint, is
A. thinner
B. vehicle
C. pigment
D. all the above.

574. The most important constituent of varnish, is
A. drier
B. solvent
C. resin
D. all the above.

575. A prime coat is given to steel work with
A. an oxide of iron paint
B. a mixture of white lead and lead paint
C. a special paint
D. cement paint.

576. The base material for distemper, is
A. chalk
B. lime
C. lime putty
D. cement wash.

577. The commonly used drying oil for oil paints, is
A. olive oil
B. linseed oil
C. kerosine oil
D. accetate of lead.

578. Distemper is
A. a paint consisting of powdered chalk, pigments, and water
B. a water proofing agent
C. a paint consisting of coloured cement and water
D. a drying agent.

579. Plastic asphalt is
A. used as a water proofing layer over roof
B. a mixture of cement and asphalt
C. a natural asphalt
D. a refinery product.

580. French Wish-is
A. oil paint
B. distemper
C. spirit varnish
D. none to these.

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