NACE CIP Level 2 Test Questions and
Answers
WJ-1 (visual cleanliness) is comparable to which abrasive blast cleaning standard? - Answer-ISO SA 3
Robotic water jetting includes - Answer-*attaches using vacuum, cables or magnets
*Vertical, Horizontal or overhead surface
*Controlled by single operator
*Collects in excess of 95% of the water, removed coatings and rust (waste generated)
A typical waterjetting team consists of? - Answer-*Nozzle operator
*Pump Operator
*Additional operators or workers as required
Considerations with Back Thrust are: - Answer-*Causes Fatique
,*Should be no more than 1/3 of operators body weight
Safety considerations before waterjetting are - Answer-*work area is properly barricaded
*Electrical equipment protected from water
*Electrical connections are not allowed to sit in water
*All fittings and hoses are in good condition / proper pressure rating
*Nozzles are free of obstructions
*System is flushed clean and air removed
*The dump system and all control systems are
operational
*Proper LockOut/ TagOut provisions in place
*Confined entry requirements addressed
Waterjetting advantages include? - Answer-*Worker Safety
*Worker air quality
*Less stringent respiratory requirements
*No dust or contamination or clean up
*Environmentally friendly
*Requires less cleanup
Waterjetting disadvantages include: - Answer-*Waterjetting does not leave a surface profile
*Equipment is very expensive
*Danger of Ultra High Pressure hose breaking
*Danger of injection into the skin or serious cuts
*Collecting and disposing of the contaminated
,Water
*Proficient operators needed
Cause of Blistering on coatings? - Answer-Oil, moisture and / or grease
Saturation point drops as? - Answer-Air is compressed, making air wetter
Check compressor for water contamination at? - Answer-Moisture traps, inter cooler and aftercooler
Common Hot Dipped (HD) inspection defects - Answer-Cracking, peeling, bare spots, lumps, Blisters,
flux inclusions, ash inclusions and dross inclusions
Describe what a Tooke Gage is and some models - Answer-*Destructive test instrument
*Used on non-magnetic or nonferrous
Substrate
*has illuminated 50x microscope
*good from 0-100 mils
*Groove cut through coating
*Models are Mark II and Mark III
Centrifugal blast machine showing low amperage could indicate? - Answer-*Abrasive starved wheel or
*Flooded or choked wheel
How to rectify water contamination: - Answer-*ensure cooling water is turned on
*Ensure drains are not plugged
*last resort is to consider installing larger or
, Additional moisture traps
Air oxidization enters the coating when? - Answer-After solvent evaporates
What is the curing method for alkyds and epoxy ester? - Answer-Air drying
What is the NACE / SSPC standard for Surface Prep by Chemical or thermal means for concrete? -
Answer-NACE 6 / SSPC-SP13
What are impressed current power sources - Answer-*Rectified Commercial Power
*Solar Cells
*Generators
*Fuel cells
*Wind Powered Cells
*Thermo electric
What is the purpose of dehumidification? - Answer-remove moisture to lower dew point
Electronic hygrometers check - Answer-*Relative humidity
*Air temperature
*Dew Point temperature
How do you reduce the relative humidity of the boundary layer? - Answer-*Increase surface
temperature
*Reduce moisture by dehumidification
Answers
WJ-1 (visual cleanliness) is comparable to which abrasive blast cleaning standard? - Answer-ISO SA 3
Robotic water jetting includes - Answer-*attaches using vacuum, cables or magnets
*Vertical, Horizontal or overhead surface
*Controlled by single operator
*Collects in excess of 95% of the water, removed coatings and rust (waste generated)
A typical waterjetting team consists of? - Answer-*Nozzle operator
*Pump Operator
*Additional operators or workers as required
Considerations with Back Thrust are: - Answer-*Causes Fatique
,*Should be no more than 1/3 of operators body weight
Safety considerations before waterjetting are - Answer-*work area is properly barricaded
*Electrical equipment protected from water
*Electrical connections are not allowed to sit in water
*All fittings and hoses are in good condition / proper pressure rating
*Nozzles are free of obstructions
*System is flushed clean and air removed
*The dump system and all control systems are
operational
*Proper LockOut/ TagOut provisions in place
*Confined entry requirements addressed
Waterjetting advantages include? - Answer-*Worker Safety
*Worker air quality
*Less stringent respiratory requirements
*No dust or contamination or clean up
*Environmentally friendly
*Requires less cleanup
Waterjetting disadvantages include: - Answer-*Waterjetting does not leave a surface profile
*Equipment is very expensive
*Danger of Ultra High Pressure hose breaking
*Danger of injection into the skin or serious cuts
*Collecting and disposing of the contaminated
,Water
*Proficient operators needed
Cause of Blistering on coatings? - Answer-Oil, moisture and / or grease
Saturation point drops as? - Answer-Air is compressed, making air wetter
Check compressor for water contamination at? - Answer-Moisture traps, inter cooler and aftercooler
Common Hot Dipped (HD) inspection defects - Answer-Cracking, peeling, bare spots, lumps, Blisters,
flux inclusions, ash inclusions and dross inclusions
Describe what a Tooke Gage is and some models - Answer-*Destructive test instrument
*Used on non-magnetic or nonferrous
Substrate
*has illuminated 50x microscope
*good from 0-100 mils
*Groove cut through coating
*Models are Mark II and Mark III
Centrifugal blast machine showing low amperage could indicate? - Answer-*Abrasive starved wheel or
*Flooded or choked wheel
How to rectify water contamination: - Answer-*ensure cooling water is turned on
*Ensure drains are not plugged
*last resort is to consider installing larger or
, Additional moisture traps
Air oxidization enters the coating when? - Answer-After solvent evaporates
What is the curing method for alkyds and epoxy ester? - Answer-Air drying
What is the NACE / SSPC standard for Surface Prep by Chemical or thermal means for concrete? -
Answer-NACE 6 / SSPC-SP13
What are impressed current power sources - Answer-*Rectified Commercial Power
*Solar Cells
*Generators
*Fuel cells
*Wind Powered Cells
*Thermo electric
What is the purpose of dehumidification? - Answer-remove moisture to lower dew point
Electronic hygrometers check - Answer-*Relative humidity
*Air temperature
*Dew Point temperature
How do you reduce the relative humidity of the boundary layer? - Answer-*Increase surface
temperature
*Reduce moisture by dehumidification
