NEM Chapter 233, ICE

Question 1

Cooling system should be clean so that the inhibitor will be able to act on the ___

Answer 1

Bare metallic surfaces of the water jacket

Question 2

Make-up water must be checked for ___ prior to adding it to the engine

Answer 2

Chloride concentration and conductivity

Question 3

Make-up water max conductivity

Answer 3

150 micromohs/cm

Question 4

Make-up water max chloride concentration

Answer 4

60 ppm

Question 5

The primary cooling system must be mechanically tight to prevent ___

Answer 5

Leaks of coolant out of the system

Leaks of combustion gasses or air into the system

Question 6

Any engine experiencing corrosion, erosion, scaling, or sludging conditions should be thoroughly examined to determine the cause. The CO should ___

Answer 6

Report the facts to the SFLC Product Line

Question 7

If it is necessary to acid clean the cooling system of an ICE, the ___ should request assistance of the ___

Answer 7

CO

SFLC Product Line

Question 8

Used for acid cleaning badly scaled engine cooling systems

Answer 8

Inhibited hydrochloric acid

Question 9

Acid cleaning is authorized only at ___

Answer 9

Repair facilities, shipyards, or contractors specializing in this service

Question 10

SFLC Product Lines are authorized to provide additional water treatment instructions in areas of ___

Answer 10

Adverse water conditions

Question 11

Engine J/W systems shall never be directly connected with the ___

Answer 11

P/W supply

Question 12

PPE for handling inhibitors, inhibitive antifreeze, or testing chemicals

Answer 12

Rubber gloves, a face shield, and an apron

Question 13

If alkalis contact the skin, flush the area with cold water until ___

Answer 13

The slippery feeling disappears

Question 14

Blend of inhibitor chemicals in aqueous solution. The major components are: Sodium nitrite, sodium tetraborate, sodium silicate, sodium mercaptobenzothiazole (MBT), and tolytriazole (TTZ)

Answer 14

NALCOOL 2000 and PENCOOL 2000

Question 15

Sodium nitrite aids in the formation of a ___

Answer 15

Protective oxide layer of ferrous surfaces

Question 16

Helps prevent cylinder liner pitting and cavitation

Answer 16

Sodium nitrite

Question 17

Sodium tetraborate is used for ___

Answer 17

pH buffering

Question 18

Sodium tetraborate works by ___

Answer 18

Neutralizing acidic byproducts resulting from the products of oxidation

Question 19

Cause of acidic byproducts in coolant

Answer 19

Blow-by gasses

Question 20

Sodium silicate forms a silicate film on ___

Answer 20

Anodic metal surfaces

Question 21

MBT and TTZ form thin film protective layers on ___

Answer 21

Copper and copper alloy surfaces

Question 22

The use of NALCOOL 2000 and PENCOOL should be limited to engines that don’t have ___

Answer 22

Wetted aluminim surfaces or components in the cooling system

Question 23

Reason NALCOOL 2000 and PENCOOL shouldn’t be used in systems with wetted aluminum

Answer 23

Sodium silicate is not in high enough concentrations to effectively protect aluminum surfaces

Question 24

NALCOOL 3000 and PENCOOL 3000 contain what that the 2000 products do not?

Answer 24

Compounds that prevent the formation of precipitates and gel deposits

Question 25

Typically the formation of precipitates and gel deposits in coolant is caused by ___

Answer 25

High concentrations of salts in aqueous solution resident in a corrosion inhibitor combining with corrosion inhibiting chemicals resident in antifreeze or salts resident in hard water combining with the chemicals

Question 26

NALCOOL 3000 and PENCOOL 3000 should be limited to engines that don’t have ___

Answer 26

Wetted aluminum surfaces or components in the cooling system

Question 27

MIL-A-53009 Corrosion Inhibitor is limited to engines that are ___

Answer 27

Not prone to cylinder cavitation and do not contain wetted aluminum parts or components in the cooling system

Question 28

Utilizes the chemicals sodium metaborate, potassium silicate, and mercaptobenzothiazole (MBT)

Answer 28

MIL-A-53009 Corrosion Inhibitor

Question 29

Alkaline buffer which neutralizes acid byproducts from blow by gasses leaking into the coolant

Answer 29

Sodium metaborate

Question 30

Potassium silicate provides good corrosion protection for ___

Answer 30

Mixed metal systems

Question 31

Contains sodium nitrite, sodium hydroxide, and sodium silicate

Answer 31

NALFLEET 9-111 Inhibitor

Question 32

NALFLEET 9-111 is an effective inhibitor for cooling systems with ___, because of ___

Answer 32

Wetted aluminum surfaces

High concentrations of sodium silicate

Question 33

NALFLEET 9-111 should never be mixed with ___

Answer 33

Anti-freeze

Question 34

An ethylene glycol-based inhibitive antifreeze that is available through the stock system

Answer 34

A-A-52624 TYPE I Inhibited Antifreeze

Question 35

Mixtures of A-A-52624 Type I, used with NALCOOL or PENCOOL is authorized for engines ___

Answer 35

Prone to cavitation that don’t contain wetted aluminum surfaces that require freezing protection

Question 36

Premixed 50/50 solution of ethelyne glycol in de-ionized water

Answer 36

Caterpillar Extended Life Coolant 50/50 Premix

Question 37

Includes carboxylates, nitrites, tolytriazole, and silicates

Answer 37

CAT ELC

Question 38

Purpose of carboxylates

Answer 38

Ferrous metal and aluminum protection

Question 39

Purpose of nitrites

Answer 39

Ferrous metal protection

Question 40

Purpose of tolytriazole

Answer 40

Yellow metal protection

Question 41

Purpose of silicates

Answer 41

Aluminum protection

Question 42

Inhibitor used in most 87 WPB engines

Answer 42

Glysacorr G93, by BASF, inhibited antifreeze

Question 43

Requests to use other corrosion inhibitors shall be submitted to the ___, which will forward the request to ___. It must be accompanied by ___

Answer 43

Cognizant SFLC Product Line
SFLC ESD
Written testimonial from the engine manufacturer

Question 44

Antifreeze shall be used on ___

Answer 44

Boats less than or equal to 65 ft

All engines that utilize keel coolers