Written Exam Flashcards
You are the NACE Inspector on a tank lining project where a 50% solids epoxy tank lining is being applied. After application of the 19 coat you notice small blisters in some areas of the applied lining. Your FIRST preferred course of action is to:
Document the problem and advise the Contractor and Owner’s representative
Dew point is the temperature at which
condensation occurs
If a contractor is using a poorly maintained compressor to supply air for abrasive blast cleaning and conventional airspray, the coating inspector should perform a
blotter test for the presence of oil and water.
Upon arrival of coating materials, the inspector should
observe and document the amount of material and batch numbers.
Relative humidity is
a measure of the amount of moisture in the air compared to saturation level.
Galvanic corrosion occurs on which of the following substrates:
Metal
When applying Thermal Spray Coatings the specification is most likely to refence:
SSPC-CS 23.00/AWS C2.23/NACE No. 12
What is the minimum recommended distance away from an edge that an inspector should take a measurement with a dial-type magnetic pull-off Dry Film Thickness (DFT) gauge?
2.5 cm (1 inch)
Polymerization is the process of:
Monomers joining together
An exposed area of the substrate or previous coat of a conductive coating material, often caused by poor application technique is called
holiday.
Checking is
a fine crack in the surface of a coating that rarely reaches the substrate
Inspection documentation is important because:
Owners use the documentation for a variety of purposes
An inspectors personal log book should contain:
No comments regarding the application team
You have just received your NACE CIP Level 1 certification when you are asked to supervise a team of uncertified field pipeline inspectors. Your FIRST preferred course of action is to:
Review the NACE Attestation prior to making a decision
Good records can provide maintenance departments with detailed information about ALL of the following EXCEPT
how the item was coated.
Non Conformance Reports are completed by the Inspector:
When the Inspector and Contractor deem it to be a significant non-conforming item
The initial steel condition is important to the NACE Inspector because:
The Inspector may have to reject the Steel
The form of corrosion that has the largest potential for unexpected catastrophic failure is:
Galvanic Corrosion
What is used to determine compressed air cleanliness?
Profilometer
Osmotic blistering is most likely to occur as a result of
airless spray application
When performing tests for oil and grease using an ultra-violet light, the NACE Inspector should be aware that:
Synthetic oil or grease may not be identified
To achieve consistently accurate results with ALL alt test equipment
wash your hands before sampling.
When holiday testing is required the Inspector is always required to enforce NACE SP 0188:
True
If the specifier does not identify a restriction level in accordance with SSPC PA 2, the default restriction level is:
Level 3
Fine cracks in the surface of a coating that rarely reach the substrate are called
checking.
It is good practice for the NACE Inspector to have instrument calibration certificates available:
At all times
In a non-convertible coating the role of the primary solvent is to:
To control the evaporation rate
Removal of welds splatter is required:
When specifically identified in the owner’s specification
Common errors that may produce inaccurate readings when using a Dial-Type Magnetic Pull-Off Dry Filth Thickness (DFT) gauge include: Select All That Apply
- Failing to determine the base metal reading (BMR)
- Rotating the dial too fast when taking measurements
- Measuring ditty, tacky, or soft films
Conventional spray is a good choice when:
High quality finishes are required
Which of these tests uses a syringe?
Bresle patch
Which one of these elements is not necessary for corrosion to occur:
Reference Cell
Digital hygrometers
determine relative humidity, air temperature, and dew point temperature
Using SSPC Vis 1 as a guide when performing a visual inspection of a steel surface prior to surface preparation a NACE Inspector would assign which designations to the surface condition:
Rust Grades A-D
Inspector’s daily reports are used: Select All That Apply
- By the contractor to estimate the amount of work done that day
- To provide continuity between inspectors
- To aid in arbitration between the contractor and client
- To help in cases of a coating failure
Silicone coatings are typically:
Applied in very’ thin films
Excess moisture during holiday testing can cause erroneous indications by creating a path across the surface of the coating to pinholes previously detected, or directly to the signal return connection.
This is often referred to as:
telegraphing.
ASTM Standards are applicable:
When specified
The main responsibilities of the inspector are to
observe and report the quality of the work performed.
When using a sling physchrometer a very large difference between the wet and dry bulb readings indicates:
Low Relative Humidity
The NACE Inspector should perform tests for soluble salts:
When specified
Corrosion generally occurs at which of the following sites:
Anode
If inspectors identify issues of non-conformance during an inspection, they should
inform both the Contractor and the inspector’s supervisor so they can take appropriate corrective actions
You are the NACE Inspector on a job where ISO ST 3 has been specified. The Contractor normally works to SSPC standards and been referencing SSPC SP 3. Could this have any impact on the final surface preparation appearance?
No, because there is no real difference in the standards
Safety Data Sheets must be carefully reviewed by:
All personnel involved in the job
You are the NACE Inspector on a job where the Owner‘s specification requites you to perform a twice daily check of blast pressure at the nozzle. It is now day 30 on the job and all of your readings have been within compliance. The Contractor complains that these checks taking up much time and in view of the compliant results they are unnecessary.
Your FIRST preferred course of action is to:
Keep doing the checks and consult the Owner’s representative for direction
If the project specification DOES NOT state the specific DFT measurement standards, the inspector should use
a recognized industry standard like SSPC-PA 2 that is broadly accepted
ISO SA 2 is defined as:
Thorough Blast Cleaning
When using the ISO comparator in accordance with ISO 8503, if the surface profile does not directly compare to one of the four segments the inspector should:
Record your result by identifying two segments
Owners hire NACE Inspectors’ with the expectation that:
- The inspection cost will be offset by an improvement in service life
- The Inspector will make a meaningful technical contribution to the job
An Inspector should change position when:
The Inspector is convinced by verifiable facts
Check abrasive blast pressure with a
needle pressure gauge
Passivation can best be described as:
A protective metallic oxide surface layer that slows corrosion
What is the minimum spot measurement value allowed by SSPC-PA 2 in each 10 m2 (100 ft2) area?
80% of the specified minimum thickness
Stripe coats are best applied by:
Brush
The Inspector should record the serial numbers of inspection instruments:
Each time the instrument is used
ISO SA 3 is directly equivalent to:
NACE No. 1/SSPC SP 5
On a blast-cleaned surface, Ian ultraviolet light is generally used to detect
grease and oil
You ate the NACE Inspector on a job where NACE No. 2/SSPC - SP 10 has been specified. You are finding the Contractor is leaving mill scale on the on surface and as a result you have been rejecting the blast. The Contractor is very upset and has told you that the standard permits up to 5% of the mill scale to remain and still be in be in compliance with the standard.
Your FIRST preferred course of action is to:
Review the relevant standard with the Contractor
A successful coating inspector must be able to
look for problems or issues during application.
A magnetic pull-off type gauge is a good choice when:
When an intrinsically safe tool is required
The Inspector’s Log Book is generally:
Retained by the inspector upon project completion
The most important factor resulting in improved job site safety is:
Situational Awareness
You are the NACE Inspector on a 5000 sq. ft. job where SSPC PA 2 has been specified.
Assuming all areas are in compliance, how many gauge readings and spot measurements are required?
225 Gauge Readings resulting in 75 Spot Measurements
Stripe coats are generally applied to:
- Edges and corners
- Welds
- Complex geometric shapes
SSPC SP 1 identifies the use of:
A wide variety of materials
Which one of the following documents is the best source for coating technical data:
Technical Data Sheet
Which is a component that supplies most of the features and functions of the material?
binder
NACE Level 1 Inspectors have been trained to perform:
Visual inspection and Non-destructive testing
If a Thermoset coating is heated it will:
Harden and retain its hardness when cooled
As a NACE Coating Inspector your responsibility with respect to safety is to:
Act in accordance with the site safety requirements and set an example
Prior to using Inspection Tools the inspector must:
- Ensure the instrument is within calibration parameters
- Be trained on how to use the instrument
- Read the manufactures’ instructions
When the joint NACE/SSPC abrasive blast cleaning standards are specified, the pictures in SSPC VIS 1 can be used as:
A general guide
You are the NACE Coating Inspector on an exterior job where the contractor is not using any environmental controls, For the last several hours your reading; indicate the relative humidity is rising and the substrate temperature is dropping. The sky is clouding over and the weather forecast is for evening showers. It is now 4 PM, your readings indicate you have minimally acceptable environmental conditions, however if the current trend continues, you expect to be outside specified conditions soon. The contractor advises you he is going to mix up the next full kit to complete his for the day.
Your FIRST preformed course of action is to:
Advise the Contractor of your readings
ISO SA 2.5 is defined as:
Very Thorough Blast Cleaning
How many gauge readings does SSPC-PA 2 require within a 4 cm (1.5 inch) diameter circle?
3
Daily reports are important because:
Select All That Apply
- Inspectors rarely change on a project.
- Management uses them to make personnel decisions.
- The information aids communication with supervisors.
Excessive working of the surface with a power grinder can be detrimental because excessive burnishing
develops a polished surface, which is a poor anchor profile for most coatings
You are asked to be the only coating inspector on a small bridge recoating job where existing coating contains lead. The owners’ representative has supplied you with the local code governing the removal and disposal of lead based coatings, however upon reading the document you having great deal of difficulty understanding the technical language. As a NACE CIP Level 1 Inspector your preferred course of action is to:
Carefully review the document and do the best you can
NACE SP 0178 is a standard for:
Tanks and Vessels to, be Lined for Immersion Service
The primary difference between Non-Convertible vs. Convertible coatings is:
Non-convertible coatings do not undergo a chemical change during curing whereas Convertible coatings do
According to SSPC PA 2 a Spot Measurement is:
The average of gauge readings taken in a 4cm (1.5 inch) circle
Whenever dissimilar metals must join, the most common practice is to
provide cathodic protection to prevent corrosion.
Check abrasive blast pressure close to the
blast nozzle
Removal of surface contaminants is done by:
A combination of methods
When working as a NACE Inspector in a situation where there is a difference of opinion, the Inspector needs to:
Never change his/her mind
In the event of a conflict between the project specification and the coating manufactures’ product data sheet, the Inspector’s first course of action should be too:
Use the job specification as a guide
A single application coating film has a measured dry film thickness (DFT) between 4 and 5 mils (between 100 and 125 microns). The volume solids of the coating immediately before application were 67%,
What wet film thickness (WFT) was applied?
6 to 7 mils (150 to 175 microns)
Most industrial coatings are:
Organic
Due to a previous premature coating failure the owner has required the original coating applicator to return to remove and replace 10,000 square feet of a failed three coat system at the applicator’s cost. Due to the financial implications of another failure, the owner has offered you the job as the NACE CIP Level 1 Coating Inspector and explained that he expects you to be his “insurance policy” for this job. You have never been involved in a warranty job before and are unfamiliar with the coating system.
Your preferred FIRST course of action is to:
Review the Product Data Sheets, and conduct a walk thru of the job site prior to the pre-job Conference
To be of value the Inspector’s documentation must be:
Timely, accurate and concise
A NACE Coating Inspector is permitted to transport coating material when:
The Inspector should never transport coating material
Solvents are added to coating formulations to
dissolve binders and form liquid coatings.
Common errors that can produce inaccurate readings when using Wet Film Thickness (WFT) gauges include: Select All That Apply
- Using a damaged gauge
- Dragging a gauge through wet coating
ISO ST 3 is described as:
Very Thorough hand or power tool cleaning
Prior to the pre-job conference you notice that the Inspection and Test Plan does not require a hold point after surface preparation and coating application. In speaking with the owners’ representative in advance of the meeting you sense he/she does not understand the importance of the hold point.
As a NACE CIP Level 1 Inspector your preferred course of action is to:
Bring the matter up at the pre-job conference
You are an inspector on a project where SSPC SP 3 is specified.
What sort of tools should you expect the Contractor to use to achieve the standard?
Power tools
The least effective method of surface cleaning is most likely
hand tool cleaning.
NACE No. 4/SSPC-SP-7 is a joint standard for
brush-off blast cleaning.
Surface profile describes:
The level of surface roughness required after abrasive blasting
