Varnish MCQs : Here you will find MCQ Questions related to "Varnish" in Civil Engineering. These Varnish MCQ Questions Will help you to improve your Civil Engineering knowledge and will prepare you for various Examinations like Competitive Exams, Placements, Interviews and other Entrance Exmaniations.
How many ingredients are varnish composed of?
Explanation: The three components of varnish are resins, driers and solvents.
_________ is a natural resin obtained from the secretion of the female lac bug.
Explanation: Shellac is a natural resin obtained from the secretion of the female lac bug.
Which of the following are artificial resin?
D. All of the above
Explanation: All of the above options are artificially obtained.
Driers in varnish are used as:
Explanation: Drier is the ingredient in varnish which accelerators the process of drying of applied varnish.
Wood naphtha, a cheap variety of resin, is also called:
A. Methyl alcohol
B. Synthetic rubber
Explanation: Methyl alcohol was produced chiefly as a by-product of the destructive distillation of wood. Hence, the name wood naphtha.
Varnish comes from ?
A. Latin varne
B. Latin Vernix
C. Greek Vernix
D. Green varne
Explanation: Varnish comes from Latin word vernix, which means odorous resin.
Which of the following are water based resins?
D. Both A and B
Explanation: Urethane and Acrylic are water based resins.
Alkyd resin is less expensive
C. Can be true or false
D. Can not say
Explanation: True, Alkyd resin is less expensive. It is a type of polyester resin and its combined with alcohol and acid. It is cooked with oil to create varnish.
________ Varnish is also called French varnish and used for furniture.
Explanation: Spirit varnish is quick drying. It is not very resistant to weathering and is generally used for furniture.
Which of the following statememt is false?
A. Water based finishes have a blue tint to it.
B. Solvents contain high levels of polyunsaturated fatty acids
C. Both A and B
D. None of the above
Explanation: Drying oils are the ones that contain high levels of polyunsaturated fatty acids. These include linseed oil, tung oil and walnut oil.