Online testing: Test about Wall Washing of Cargo Tanks and Wall Wash Test (CBT)

If you do not pay enough attention to the exact requirements of the Customer’s wall wash specification, which of the following may result?

The basic routine laboratory tests, that we run on board include:

Wall wash results should be recorded for the following reasons:

The two kinds of detectable odour in a wall wash sample are:

A drying-oven Non-Volatile Matter test cannot be effectively done on board a ship, because:

A wall wash should not be taken from a hot bulkhead, because:

A wall wash should not be taken from a wet bulkhead, because:

All cargoes loaded into Stainless Steel tanks require a wall wash standard of tank cleanliness:

An Inhibitor in a last cargo will almost certainly influence the result in this routine shipboard laboratory test:

Another name for the Hydrocarbon test is “Water Misidentification”:

Blue graduation marks on the side of a test tube may lead to:

Certain ships routinely carry a stock of wall wash equipment in excess of the recommended levels, if:

Given the specification and observed condition as listed, what would be the priority in the next phase of tank preparation?

Heavy smokers may, in particular, have a problem accurately conducting this routine laboratory test:

Hot bulkheads should be avoided for wall wash, because:

How many drops of Silver Nitrate solution are added to the sample in a Chloride test?

Ideally, a standard wall-wash should be run over which of the following distances?

If Bleach products have been used in a tank cleaning process, and not properly rinsed away, the following is most likely to be noted in a wall wash analysis:

If you encountered a new wall wash or analysis procedure, you should:

In a Hydrocarbons test, the presence of moderate to heavy Hydrocarbons is indicated by:

In a Hydrocarbons test, the presence of slight Hydrocarbons is indicated by:

In a Permanganate Fade Time test using Methanol, at what temperature should the samples be maintained?

In a Permanganate Fade Time test, how long should the samples be allowed to “stabilize” before the Permanganate solution is added?

In a Permanganate Fade Time test, samples should be checked against the standard at the following interval:

Inhibitor in a previous cargo commonly affects Permanganate Fade Time test results:

Maintaining the samples at a constant temperature is a necessary part of the Permanganate Fade Time test procedure:

Most shore laboratories follow analysis standards laid down by:

Of the four problems listed below and assuming all are included in a customer specification, which would be the priority?

Orange or red particles noted in a wall wash sample are an indication of the presence of:

Permanganate Fade Time is defined as:

Permanganate Fade Time test samples should start off with the following colour:

Permanganate Fade Time test are run for:

Regular marker pens should not be used to identify sample jars, because:

Residual Odour is defined as:

Soapy bubbles noted on the top of a wall wash sample in a test tube are a likely indication of:

Standard wall wash technique usually involves running a sufficient quantity of industrial water down a tank surface, until all traces of cargo residue disappear from a collected sample:

The Ultraviolet Spectrum test is run to detect:

The dish used in a shore laboratory Non-Volatile Matter test is commonly made from:

The following amount of Potassium Permanganate Solution is added to the sample in the Permanganate Fade Time test:

The following important information should be prominently posted in the ships laboratory:

The letters “G. C.” in the shore laboratory test stand for:

The letters “N. V. M.” stand for:

The most apparent effect of samples left standing in test tubes is:

The most likely source of Hydrocarbons detected in a wall wash sample is:

The over-riding principle behind a wall wash and the subsequent analysis is:

The purpose of a wall wash is to determine:

The ratio and components used in the preparation of a Permanganate Solution are:

The risk of odour contamination is most likely in which of the following:

The sealed reference standard used in a Permanganate Fade Time test is:

The significant difference with a Whatman Filter Paper test is that it:

The two components in a Hydrocarbon test “blank” standard are:

The wall wash procedures in this programme and those used by the majority of shore laboratories, are built around industry standards issued by the following organisation:

To assess the Appearance of a wall wash sample, we:

To determine the presence of Chlorides in a wall wash sample, we add:

Under normal handling conditions, a Permanganate Solution will last for approximately:

Wall wash samples will not really be affected by an occasional drop of sweat:

When performing a Hydrocarbons test, the sample should be viewed:

Where possible, a wall wash stream should be run for:

Which of the following descriptions is best applied to the “Appearance” of a wall wash sample?

Which of the following is a false statement?

Which of the following is unlikely to be the source of Hydrocarbons found in wall wash analysis?

Which of the following should be available in the ships laboratory?