NACE CIP Level 1 Practical Exam Questions and Answers 100% Solved correctly

NACE SP0188 - Answer-High and Low Voltage Holiday Testing Low-Voltage Holiday Detector - Answer--Ground is attached directly to substrate. -Sponge saturated with a solution of tap water/wetting agent -Proper mix ratio 1oz/USgal -Proper of speed is 1ft/sec Double Stroke -Used on Coatings up to 20mils -may be used on concrete Low Voltage Holiday Detectors Common Errors - Answer--Failure to Keep probe in contact with surface -Moving the electrode too fast or slow -Over or under saturating the sponge -Low battery or bad lead/ground connection Telegraphing - Answer-Can occur when surface is saturated with water and the Detector reads a different area. High Voltage Holiday Detectors - Answer--Can have an Output range from 800-60,000v -In General Voltage ratio 100v/1mil -Electrode Rate of 1ft/sec with a single pass -Ground connection must be made direct to metal substrate(preferred) or indirectly for pipeline in soil. High Voltage Holiday Detector Pannel - Answer--When determining the Voltage used, if not shown on dial use Voltage immediately below what's needed -Remember the selection must be either High or Low and the corresponding number next to the Voltage. SSPC-PA2 - Answer-Dry Film Thickness GaugeSSPC-PA2 Type 1 - Answer-Magnetic Pull-Off DFT Gauge -Dial-Type Magnetic Pull-Off DFT Gauge (Banana Gauge) -Pencil Type Magnetic Pull-Off DFT Gauge Dial TypeMagnetic Pull-Off DFT Gauge - Answer--Known as "Banana Gauge" -Intrinsically Safe -Some Models Can Be Used Underwater ASTM D 7091 - Answer--Calibration: Gauge Shall be Calibrated by manufacturer or third party lab. -BMR: In order to compensate for any effects from the blast profile must calculate the Base Metal Reading. -Verify Accuracy: Use certified metal plates and Gauge must be within 5% of expected range. Type 1 DFT Gauge Adjustment - Answer--Take 10 reading on the blasted steel surface and average the results. -Take DFT measurements - Subtract BMR from DFT Averages Type 1 DFT Gauge Potential Errors - Answer-DO NOT Use Gauge: -On soft or tacky films -On or near vibrating surfaces - Within 1 inch of an edge -On metal being welded (can demagnetize unit) -Keep magnet tip clean of magnetic particles and residue -On Circular Pieces locate the Gauge along the longitudinal axis Edge Effect - Answer-Defined by ASTM B244 as being sensitive to abrupt changes in the surface contour of the test specimen.Standards for DFT Measurement Frequency - Answer--SSPC PA-2* -IMO PSPC -ASTM D 7091 -ISO 2808, 2178, 19840 Potassium Ferricyanide Qualitative Test for Soluble Salts - Answer-Designed to detect the presence of salt on the substrate. Not designed to measure the quantity of these ions. Potassium Ferricyanide Test Procedure - Answer--Use Test Paper that comes with the Potassium Ferricyanide -Misting the surface with distilled water -Wipe Test paper to misted surface -A dark blue color will indicate the presence of soluble salts.