NACE CIP 2 Exam| Questions and Verified Answers (2023/ 2024)

NACE CIP 2 Exam| Questions and Verified Answers (2023/ 2024) Q: Disadvantages of Plural component spray over single component spray Answer: higher cost, high volt heaters are required, more qualified operator, more hoses for operator to work with Q: Advantages of Plural component spray over single component spray Answer: Accurate mixing without human element, sprays very thick solvent free materials without thinners & sprays materials with very short pot life. Q: 2 major classes of rubber Answer: natural and synthetic Q: Natural rubber Answer: derived from latex from Hevea trees, and coagulated with acetic or formic acid. Unsaturated hydrocarbon (polyisoprene) Q: Synthetic rubber Answer: 1 or more properties of natural rubber and any one of a group of man-made elastomers. Q: Vulcanization Answer: Physicochemical change from cross linking the unsaturated hydrocarbon chain of natural rubber with sulfur and applying heat Q: 3 factors the affect the properties of vulcanized products Answer: % of sulfer and accelerator used, temp during curing process and time of cure. Q: Methods used to volcanize rubber Answer: Autoclave, internal steam cure, exhaust steam cure (atmospheric) hot water cure and chemical cure Q: Categories of Natural Rubber Answer: Soft, semi hard and hard Q: Tri-ply lining Answer: Sandwich of semi-hard/hard rubber between 2 layers of soft rubber Q: Synthetic rubber types Answer: Butyl rubber, Neoprene rubber, Nitrile rubber, Chlorobutyl rubber, Hypalon Q: Cause of failure on Rubber linings Answer: Incorrect product selected, using after shelf life expired, not correctly storing rubber, incorrect application process and inadequate cure. Q: Applying polyethylene Answer: Melt the resin and extrude it onto the surface, heat the work piece and immersing it into a fluidized bed or flamespraying Q: SES Answer: Standard Engineering Society