Engineering Questions with Answers - Multiple Choice Questions
Basic Civil Engineering MCQ’s – Types and Uses of Paints
1 - Question
In how many layers is oil paint applied to a surface?
a) 3
b) 4
c) 2
d) 1
View Answer
Answer: a
Explanation: Three layers of varying compositions are applied. They are primers, undercoats and finishing coats.
2 - Question
Emulsion Paints contain:
a) Nitro cotton
b) Zinc white
c) White lead
d) Polyvinyl acetate
View Answer
Answer: d
Explanation: Nitro cotton is an element contained in cellulose paints, zinc white and white lead are components of enamel paints.
3 - Question
Anticorrosive paint is ___________ in colour
a) Blue
b) White
c) Black
d) Yellow
View Answer
Answer: c
Explanation: It consists of pigments like chromium oxide, lead or zinc chrome. It is mixed with sand and added to the paint. These pigments make the paint blackish in colour.
4 - Question
In which of the below, it is not necessary to remove existing paint to apply a new one?
a) Aluminium paints
b) Cement paints
c) Oil paints
d) Enamel paints
View Answer
Answer: b
Explanation: They are suitable for painting fresh plasters having high alkalinity. They can be directly applied on existing paint, hence they are economic.
5 - Question
Synthetic rubber paints are prepared from:
a) Resin
b) Rubber
c) Synthetic fibres
d) Polyvinyl Chloride
View Answer
Answer: a
Explanation: Synthetic rubber paint is prepared from resins. These are chemically resistant and offer protection against heavy rain, sunlight.
6 - Question
Cement paints require a smooth surface to be applied on.
a) True
b) False
View Answer
Answer: b
Explanation: Cement requires a rough surface for its application. It can adhere better onto rough surfaces than smoother ones.
7 - Question
What is used to make paints odourless to an extent?
a) Flat latex
b) Celluloid sheets
c) Acrylic compound
d) Plioway resins
View Answer
Answer: d
Explanation: These eliminate the odour present in alkyd, stain blocking primers. It also aims to reduce VOC content (volatile organic compound), which is harmful.
8 - Question
Spray painting is used to:
a) Apply paint without touching surface
b) Apply large amount of paint
c) Reach high areas
d) Get textured paint
View Answer
Answer: a
Explanation: Spray painting delivers a small amount of paint and gives the surface a smooth finish. Rollers are used to reach high areas.
9 - Question
The open-time of paint can be extended by adding white spirit.
a) True
b) False
View Answer
Answer: a
Explanation: Open-time is the time interval, after the application of liquid paint, during which other paint can be applied to give artistic effect. White spirit, Dowanol can be used. These allow different layers of wet paints to mix together and give a textured appearance.
10 - Question
Which of the below has a sheen and is highly washable?
a) Acrylic flat
b) Acrylic eggshell
c) Acrylic satin
d) Acrylic gloss
View Answer
Answer: c
Explanation: It has a satin finish. Compared to other types, it is more durable and washable.