CHP18

What does a whirling hygrometer/psychrometer measure?

• Rain

• Wind

• Speed

• Relative humidity

What are the two types of steel temperatures gauges?

• Magnetic and anti-magnetic

• Magnetic and digital thermometer

• Medium and antimagnetic

• Medium and digital thermometer

Condensation occurs when ____________ is reached

• An air temperature less than 0oC (32oF)

• A humidity greater than 90%

• The dew point

• A steel temperature of less than 0oC (32oF)

If a painting inspector is not available environmental conditions should be checked ____________

• By nobody

• By supervisor or foreman

• Only when the humidity is high

• Only when 2 pack paint is used

What situation would cause environmental condition checks to be more frequent?

• Different product being applied

• Increasing air temperature

• Decreasing air temperature

• Increasing relative humidity

If the temperature of a steel structure falls during the night there is a risk of ____________

• Coating discolouration

• Condensation

• Coating detachment

• Blistering

Information on relative humidity, dew point and overcoating times are shown on ____________

• Product data sheet

• Safety data sheet

• International Standard

• Code of practice

The environmental condition criteria should be found in the?

• Coating specification

• Risk Assessment

• Method Statements

• Paint Tin Label

Dew point can be calculated from ____________

• Wet and dry bulb temperatures

• Steel temperature and wet bulb temperature

• Steel temperature and dry bulb temperature

• Relative humidity and steel temperature

Which of the steel temperature gauges, magnetic and digital will give almost instantaneous results?

• Magnetic and anti-magnetic

• Electronic

• Both

• Neither