NACE CIP Level I Chapter 5: Environmental Testing Questions & Answers Solved 100% Correct!!

Dew Point - CORRECT ANSWER-The temperature at which moisture will begin to form on a surface. Wind speed - CORRECT ANSWER-______ can adversely affect a coating job in several ways. * Blowing abrasives * Causing excessive overspray * Accelerating solvent evaporation * Contributing to the formation of dry spray Surface Temperature Instruments - CORRECT ANSWER-* Digital Infrared Thermometers * Mechanical Surface Contact Thermometers * Electronic Surface Contact Thermometers Digital Infrared Thermometer - CORRECT ANSWER-______ are non-contact thermometers that are used to measure temperature from a distance. Magnetic Surface Contact Thermometer - CORRECT ANSWER-______ is one of the most common instruments used to determine substrate temperature. Stabilization time varies, but usually 3 to 5 minutes. Electronic Surface Contact Thermometer - CORRECT ANSWER-______ use a thermocouple in contact with the surface to measure temperature. Relative Humidity Instruments - CORRECT ANSWER-* Electronic Hygrometers * Sling Psychrometer * Powered Air Flow Psycometer Electronic Digital Hygrometers - CORRECT ANSWER-These ______ multipurpose instruments determine relative humidity, temperature, and dew point and are convenient and easy to use. * Be aware that when moving from one temperature/humidity extreme to another the meter needs time to stabilize. Sling Psychrometer - CORRECT ANSWER-______ (sometimes called a whiling hygrometer) is the type of psychrometer most often used in coating inspection. * Used to measure the ambient air temperature* Dry-bulb temperature and wet-bulb temperature used to calculate the dew point and relative humidity * Make sure the wick is wet and clean * Continue to "sling" until three consecutive identical readings are achieved (good practice)