NACE CIP Level 1 Practical Exam questions and answers

NACE CIP Level 1 Practical Exam
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 Gauge

SSPC-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