WorksheetsCHP5
Total questions: 50
Worksheet time: 25mins
Surface cleanliness has little effect on an applied coating?
True
True for epoxy coatings only
True for zinc primers only
Not true, surface cleanliness has a major effect on applied coatings including poor adhesion
After blast cleaning, dust can settle within the steel profile prior to coating?
Not true
Only surfaces with a large profile
Only surfaces with a small profile
True
A small level of surface dust is acceptable for all coatings?
Only on vertical surfaces
Only with certain dusts
Not true
Only on horizontal surfaces
Are dust removal systems used during blast cleaning?
No dust removal systems are not used in the coatings industry
Yes dust removal systems are widely available
Yes but only for non metallic dusts
Yes but only for metallic dusts
Are grit recovery systems available for removing spent abrasives?
Yes, grit recovery units are widely used
Yes but only available for metallic abrasives
Yes but only for non metallic abrasives
Not true grit recovery systems are not used
Can grit and dust removal systems remove the majority of dusts during blast cleaning?
True, however the correct type of equipment must be used
No this task is not possible
True for confined space workings only
True for dusts only, not grit
A light blow down with clean air is sometimes conducted prior to coating application?
True, however the air must be hot
Only on vertical surfaces
Only on horizontal surfaces
True, however vacuum cleaning is more effective (also check the specification)
Vacuum cleaning is conducted on numerous locations such a tank lining preparation?
Not true
Only diesel tanks
Only petrol tanks
True
Dry vacuum cleaning will remove soluble salts?
True, if the salts are white
True, if the salts are large
Not true
True
The most effective method of removing soluble salts is?
Blowing down
Vacuum cleaning
Fresh water washing
Disk/Grinding
There is generally an abundance of moisture in the atmosphere?
Only in cold climates
Only in hot climates
True
Not true
If we remove moisture to say less than ___________ % corrosion will not generally occur?
100%
85%
40%
65%
Relative humidity should be controlled during abrasive blast cleaning?
Not necessary
Only for Sa3 standard (SSPC SP 10)
Only for Sa2 1/2 standard (SSPC SP 5)
True or deterioration of the steel could occur
It is essential to use ___________ abrasive when abrasive blast cleaning?
Dusty
Old
Dry
Moist
Air compressors should always have water ___________ fitted?
Boxes
Washers
Separators
Blockages
If water is allowed to get into the air stream while abrasive blast cleaning is being conducted?
The blast cleaning will be quicker
The blast cleaning will improve the quality of finish
Deterioration of the surface preparation standard is possible
The abrasive dries up
The most economical way to control the relative humidity is to use?
Water
Moist air
De-humidification
High pressure
The use of de-humidification will allow?
More moisture in the atmosphere
Increase in water in the atmosphere
Additional time for blast cleaning due to a decrease in moisture in the atmosphere
The cleaned surface to rust immediately
Heaters cannot be used with de-humidification?
False
False if in a confined space only
Not true, heaters and de-humidification can be used together
False, if you use direct heaters only
All specialist equipment such as de-humidification and heaters should be set-up by trained personnel?
Not true
Only high powered equipment
True
Only electrical equipment
Prior to commencement of work, the following documentation must be available on grounds of health and safety?
Time sheets
Production sheets
Method statements and risk assessments
Bonus payments sheet
Details of all the work, standards, codes of practice etc. will generally be found?
In the delivery note
In the time sheets
In the contract specification
In the medic centre
As working environments can change from contract to contract additional training may be necessary?
Not true
True, however only working at height
True i.e. confined spaces
True, when working in Hazardous risky locations only
Test certificates and test plates should be available for abrasive blast equipment?
Not necessary
Only on old equipment
Only on new equipment
True
Abrasive should be checked for correct grade, type, and to ensure it is dry (unless wet blast cleaning)?
True
True for steel grit only
True for iron grit only
Not true
The abrasive operator should have available the following PPE: overalls (coveralls), gloves or gauntlets, boots / shoes, ear protection, head protection / helmet.
Not necessarily all the above
Yes all the above
Only if using high pressures
Only if using low pressures
Always ensure ___________ signs are used to advise other trades of the dangers when abrasive blast cleaning?
Big
Small
Warning
Hearing
Surface contaminants should be removed prior to abrasive blast cleaning?
Only on rusty steel
Only on old steel
False
True
The ventilation equipment should be calculated correctly, set-up and testing of equipment completed prior to abrasive blast cleaning?
Only using certain non metallic abrasives only
True with metallic abrasives only
Not true
True
It is essential that the abrasive blast cleaning equipment has communication systems / deadmans handle?
Not necessarily
Always true
True for hazardous jobs only
True for confined spaces only
The abrasive blast cleaning operator does not need to know about abrasive blast cleaning standards?
True
Not true
True for certain standards
True for visual standards
Abrasive blast cleaning standards and guides are ___________ standards and text?
Familiar
Text only
New
Visual
Most experts agree that the performance of a coating is dependent to some extent upon the method and standard of surface preparation?
Not true
True for old structures only
True
True for rusty steel only
How many initial rust grades are detailed within the SSPC VIS 1?
There are no initial rust grades in SSPC -VIS 1
There are 4 initial rust grades in the SSPC VIS 1
___________ levels of pre-surface condition are detailed within ISO 8501-1 (BS 7079 Part A1)?
One
Two
Three
Four
Steel surfaces largely covered with adhering mill scale, but little, if any, rust refers to rust grade ___________in ISO 8501-1?
A
B
C
D
Steel surfaces on which the mill scale has rusted away and on which general pitting is visible under normal vision refers to rust grade ______ in ISO 8501-1?
A
B
C
D
The SSPC VIS 1 has ____ initial painting grades?
2
4
1
3
What is SSPC the abbreviation of?
Stainless steel paint coating
Stainless steel paint council
The Society for Protective Coatings
Steel society paint conciliation
What is ISO the abbreviation of?
Internal steel organization
Internal standards organization
International standards organization
International steel organization
Compressed air is regularly used with abrasive blast cleaning equipment?
Only with a wheelabrator blast equipment
Only with electric blast cleaning equipment
True
Only with tumble blast equipment
Compressed air is fed into the pressurised unit which forces the _______ valve to close the blast unit?
Spring
Tool
Ring
Pop-up
The quality of air must be sufficient for the abrasive blast cleaning to be effective?
Not true
True for large contracts
True for small contracts
True
Compressors are generally powered by diesel and ___________?
Oil
Steam
Electric
Air
The ___________ size has a major bearing on the volume of air required during blast cleaning?
Nozzle
Air
Electric
Abrasive blast operator
What does CFM mean?
Common feet per minute
Cubic feet per minute
Cubic feet per mile
Cubic fuel per minute
Typical compressor sizes used for abrasive blast cleaning are?
100-200 CFM
200-300 CFM
600-900 CFM
900-1900 CFM
When calculating the air requirements you should always allow for associated equipment such as air fed helmet, ventilation etc.?
Only when working in confined areas
Only with diesel compressors
Only with electric compressors
Correct
What is used to distribute air to a number of outlets?
Air filters
Oil filters
Pressure valves
An air receiver
SWP stands for?
Sweet working pressure
Safe working pressure
Safe working place
Signs with pressure
