Bissoy.com
Doctors Medicines MCQs Q&A

Which defect occurs if a paint is applied excessively thick?

Which defect occurs if a paint is applied excessively thick? Correct Answer Wrinkling

Grinning occurs when under coat and final coat are of different colours. The opacity is insufficient and background colour is visible. Running occurs if the surface is too smooth; paint run off from such parts. Flaking occurs due to poor adhesion, leading to peeling off of paint.

Related Questions

Four paint brushes-A, B, C and D are used to paint or distort a sheet. A is twice as fast as B, C is twice as fast as D and B is 3/2 as fast as C. A distorts (1/8)th of the sheet, B distorts (1/4)th, C paints (3/8)th and D paints the rest. Only one paint brush can work at a time. It takes a total of 120 hours to paint the sheet. What is the time taken by C and D to paint the sheet?
Paint needs to be thinned to a ratio of 2 parts paint to 1.5 parts water. The painter has by mistake added water so that he has 6 litres of paint which is half water and half paint. What must he add to make the proportions of the mixture correct?
400 ml of paint is required to paint the surface of a solid sphere. If the sphere is sliced into 4 identical pieces, how much paint will be required to paint all the surfaces of these 4 pieces?
A can paint a house in 39 days and B can paint the same house in 52 days, with the help of C they can paint the house in 13 days. How much C time will C take to paint the house alone?
Five Men can paint a building in 20 days, 8 Women can paint the same building in 25 days and 10 Boys can paint it in 30 days. If a team has 2 Men, 6 Women and 5 Boys, how long will it take to paint the building ?
To effect a bond between two metal plates, 2.5 cm and 15 cm thick, heat is uniformly applied through the thinner plate by a radiant heat source. The bonding must be held at 320 K for a short time. When the heat source is adjusted to have a steady value of 43.5 k W/m2, a thermocouple installed on the side of the thinner plate next to source indicates a temperature of 345 K. Calculate the temperature gradient for heat conduction through thinner plate. In the diagram, the upper plate is 2.5 cm thick while the lower is 15 cm thick.
Painter A can paint the cubical box which side is 35 m in 35 day. Painter B can paint the same box in 50 days. If they work together with 100% efficiency then how many days (approx.) to paint the cubical box which length is double the previous box. 
Consider the following statements to be true even if they seem to be at variance with the commonly known facts and decide which of the conclusions follow logically from the given statements. Statements: Some paint are ball. All ball are bat. Conclusions: I. No bat is paint. II. All paint being bat is a possibility.
A brand of paint costs Tk. 14 per liter and 1 liter of paint will cover an area of 150 square feet. what is the minimum cost of paint needed to cover the 4 walls of a rectangular room that ix 12 feet wide, 16 feet long and 8 feet high?
A brand of paint costs Tk. 14 per liter, and 1 liter of paint will cover an area of 150 square feet. What is the minimum cost of paint needed to cover the 4 walls of a rectangular room that is 12 feet wide, 16 feet long and 8 feet high?