NACE CIP Level 2 Frequently Tested Actual Questions and
Answers
Question 1.
Describe what the characteristics of a heavy flash rusted surface are. 7-5
Correct Answer: Rust that is loosely adherent, easily comes of, & leaves
significant marks on a cloth that is lightly wiped over the surface.
Question 2.
Describe what the characteristics of a moderate flash rusted surface are. 7-5
Correct Answer: Rust that is reasonably well adherent and leaves light marks on
a cloth that is lightly wiped over the surface.
Question 3.
Describe what the characteristics of a light flash rusted surface are. 7-5
Correct Answer: Rust that is tightly adherent & not easily removed by lightly
wiping with a cloth.
Question 4.
At what psig is low-pressure cleaning preformed at? 7-2
Correct Answer: below 5000 psig
Question 5.
At what psig is high-pressure cleaning preformed at? 7-2
Correct Answer: 5000-10,000 psig
Question 6.
At what psig is high-pressure waterjetting pre- formed at? 7-2
Correct Answer: 10,000-30,000 psig
Question 7.
At what psig is ultrahigh-pres- sure waterjetting preformed at 7-2
Correct Answer: above 30,000 psig
, Question 8.
What does water- jetting not create? 7-1
Correct Answer: An anchor profile
Question 9.
In the marine industry, waterjetting is widely used for what purposes? 7-1
Correct Answer: Removal of marine growth, depleted antifouling coatings and
surface preparation of tank/hold interiors
Question 10.
What industries is waterjetting particularly well suited for? 7-1
Correct Answer: Marine, process and utility industries.
Question 11.
What standard specifies the amount of non visible contaminants that are allowed to be left
on the surface? 7-5
Correct Answer: None. If the coating specification does not require testing, the
inspector should not request the contractor to do so or do so on his own accord.
Question 12.
What parts does a commercial water- jet unit consist of? 7-6
Correct Answer: pumps, hoses, prime mover, and various tools such as guns,
nozzles and lances
Question 13.
What should the minimum burst strength of high-pressure equipment be? 7-7
Correct Answer: 2 1/2 times the capability of its maximum-rated operating
strength.
Question 14.
What is the safety device that high-pressure hoses are fitted with? 7-7
Correct Answer: whip-lock or whip check
Question 15.
What is the section of hose next to the gun fitted with? 7-7
Correct Answer: hose shroud
Answers
Question 1.
Describe what the characteristics of a heavy flash rusted surface are. 7-5
Correct Answer: Rust that is loosely adherent, easily comes of, & leaves
significant marks on a cloth that is lightly wiped over the surface.
Question 2.
Describe what the characteristics of a moderate flash rusted surface are. 7-5
Correct Answer: Rust that is reasonably well adherent and leaves light marks on
a cloth that is lightly wiped over the surface.
Question 3.
Describe what the characteristics of a light flash rusted surface are. 7-5
Correct Answer: Rust that is tightly adherent & not easily removed by lightly
wiping with a cloth.
Question 4.
At what psig is low-pressure cleaning preformed at? 7-2
Correct Answer: below 5000 psig
Question 5.
At what psig is high-pressure cleaning preformed at? 7-2
Correct Answer: 5000-10,000 psig
Question 6.
At what psig is high-pressure waterjetting pre- formed at? 7-2
Correct Answer: 10,000-30,000 psig
Question 7.
At what psig is ultrahigh-pres- sure waterjetting preformed at 7-2
Correct Answer: above 30,000 psig
, Question 8.
What does water- jetting not create? 7-1
Correct Answer: An anchor profile
Question 9.
In the marine industry, waterjetting is widely used for what purposes? 7-1
Correct Answer: Removal of marine growth, depleted antifouling coatings and
surface preparation of tank/hold interiors
Question 10.
What industries is waterjetting particularly well suited for? 7-1
Correct Answer: Marine, process and utility industries.
Question 11.
What standard specifies the amount of non visible contaminants that are allowed to be left
on the surface? 7-5
Correct Answer: None. If the coating specification does not require testing, the
inspector should not request the contractor to do so or do so on his own accord.
Question 12.
What parts does a commercial water- jet unit consist of? 7-6
Correct Answer: pumps, hoses, prime mover, and various tools such as guns,
nozzles and lances
Question 13.
What should the minimum burst strength of high-pressure equipment be? 7-7
Correct Answer: 2 1/2 times the capability of its maximum-rated operating
strength.
Question 14.
What is the safety device that high-pressure hoses are fitted with? 7-7
Correct Answer: whip-lock or whip check
Question 15.
What is the section of hose next to the gun fitted with? 7-7
Correct Answer: hose shroud
