CHEMCO exit exam questions and answers — Set 22 — Advanced Training for Chemical Tanker Cargo Operations
Set 22 of the Advanced Training for Chemical Tanker Cargo Operations (CHEMCO) exit exam bank — 33 of 663 questions, with the correct option marked and a one-line explanation for every one. Read it end to end, jump to a single set, or search it — then sit the same bank as a timed paper. The real DG Shipping exit exam is 30 marks with 15 to pass.
These are the bank's original groupings. Practising deals the whole bank out again every time you reshuffle, so a practice “Set 3” is a different 30 questions each time — the set numbers below are the source file's, and are only used here so the key stays navigable. Options are listed in their original order with fixed letters; when you practise, those move too.
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Set 22 — 33 CHEMCO exit exam questions with answers
1. Under MARPOL Annex II, which is designated as a special area for noxious liquid substances?
- A. The Antarctic area
- B. The Mediterranean Sea
- C. The Red Sea
- D. The Gulf of Aden
2. After unloading a Category X substance, the prewash residue must be discharged to a reception facility until the concentration of the substance in the effluent is at or below:
- A. 0.1% by weight
- B. 1% by weight
- C. 5% by weight
- D. 10 ppm
3. Under MARPOL Annex II, cargo residues may be removed from a tank by ventilation instead of washing when the substance has a vapour pressure at 20°C greater than:
- A. 5 kPa
- B. 0.5 kPa
- C. 50 kPa
- D. 101.3 kPa
4. For how long must the Cargo Record Book be kept on board after the last entry is made?
- A. Three years
- B. One year
- C. Five years
- D. Until the next renewal survey
5. Ballast introduced into a cargo tank that has been washed so that the ballast contains less than what concentration of the previous substance may be discharged without regard to discharge rate, speed and outlet location?
- A. 1 ppm
- B. 10 ppm
- C. 100 ppm
- D. 0.1%
6. Since the revised MARPOL Annex II entered into force on 1 January 2007, vegetable oils such as palm oil are generally:
- A. Category Y substances that must be carried in at least ship type 2 chemical tankers
- B. Category Z substances carried in any tanker
- C. Oils under MARPOL Annex I
- D. Other Substances with no carriage requirements
7. A ship that is not self-propelled may discharge permitted Category Y or Z residue mixtures only if it is proceeding at a speed of at least:
- A. 4 knots
- B. 7 knots
- C. 2 knots
- D. 12 knots
8. In which circumstance may a mandatory prewash after unloading a Category X, or a high-viscosity or solidifying Category Y substance, be exempted by the Administration's surveyor?
- A. When the tank is to be reloaded with the same or a compatible substance and will not be washed or ballasted before loading
- B. When the ship is in a hurry to sail
- C. When the next port is within the same country
- D. When the residue quantity is more than 75 litres
9. Amendments to MARPOL Annex II in force from 1 January 2021 require a prewash for certain persistent floating products when unloading in ports of which areas?
- A. North West European waters, the Baltic Sea, Western European waters and the Norwegian Sea
- B. The Red Sea and the Gulf of Aden
- C. The Caribbean Sea and the Gulf of Mexico
- D. The Arabian Sea and the Bay of Bengal
10. Under MARPOL Annex II, a Category Z substance is one which, if discharged into the sea from tank cleaning or deballasting operations, is deemed to present:
- A. A minor hazard to marine resources or human health, justifying less stringent restrictions
- B. A major hazard justifying a total prohibition of discharge
- C. No harm at all, so it falls outside all categories
- D. A hazard only to air quality
11. A shipper wishes to ship a liquid product that is not yet categorised under MARPOL Annex II or listed in the IBC Code. What is required before it can be carried?
- A. A provisional assessment agreed between the governments of the producing or shipping country, the flag State and the receiving country (tripartite agreement)
- B. Only the master's consent
- C. A certificate from the charterer
- D. Nothing, as uncategorised products are treated as Other Substances
12. Which statement about the Procedures and Arrangements Manual is correct?
- A. It follows the standard format of Appendix 4 of Annex II, is approved by the Administration and identifies the ship's arrangements and operational procedures for cargo handling, tank cleaning, slops and ballasting
- B. It is prepared by the master and needs no approval
- C. It is required only on ships trading in special areas
- D. It replaces the Cargo Record Book
13. Which of these operations must be entered in the Cargo Record Book of a chemical tanker?
- A. Ballasting of cargo tanks
- B. Bunkering of fuel oil
- C. Discharge of sewage
- D. Disposal of food waste
14. Where a mandatory prewash has been carried out in the unloading port, who verifies it and makes the endorsement in the Cargo Record Book?
- A. A surveyor appointed or authorised by the Government of the receiving Party
- B. The terminal loading master
- C. The ship's chief engineer
- D. The cargo owner's representative
15. What is the maximum period of validity of the International Certificate of Fitness for the Carriage of Dangerous Chemicals in Bulk?
- A. Five years
- B. Two years
- C. Three years
- D. One year
16. Which chemical tankers are required to comply with the IBC Code rather than the older BCH Code?
- A. Ships constructed on or after 1 July 1986
- B. Ships constructed before 1 July 1986
- C. All ships regardless of age, from 1 January 2021 only
- D. Only ships of 20,000 dwt and above
17. In IBC Code chapter 17, what does the letter 'A' in column l (fire protection) indicate?
- A. Alcohol-resistant foam or multi-purpose foam
- B. Regular foam only
- C. Water spray
- D. Dry chemical powder only
18. In IBC Code chapter 17, the entry 'C' in column j indicates that the product requires:
- A. Closed gauging
- B. Controlled venting
- C. Category C pollution
- D. Cofferdam segregation
19. In IBC Code chapter 17, the term 'Pad' in column h (tank environmental control) means:
- A. The ullage space is filled and maintained with a liquid, gas or vapour that separates the cargo from the air
- B. The tank must be dried to a low dew point
- C. The tank must be ventilated with fresh air
- D. The cargo is carried in a padded deck tank
20. Which chapter of the IBC Code lists products to which the Code does not apply because their safety and pollution hazards are low?
- A. Chapter 18
- B. Chapter 17
- C. Chapter 19
- D. Chapter 15
21. For ships carrying products for which column n of chapter 17 shows 'Yes', IBC Code 14.3 requires emergency escape respiratory and eye protection for every person on board. What minimum duration must it provide?
- A. At least 15 minutes
- B. At least 5 minutes
- C. At least 30 minutes
- D. At least 60 minutes
22. According to IBC Code chapter 14, where must decontamination showers and an eyewash be provided on chemical tankers carrying products that require them?
- A. On deck in suitably marked convenient locations, operable in all ambient conditions
- B. Only in the ship's hospital
- C. Only in the engine room
- D. Only inside the accommodation entrance
23. What does the attachment to the International Certificate of Fitness of a chemical tanker contain?
- A. The list of products the ship is permitted to carry with their conditions of carriage and tanks
- B. The crew list and their certificates
- C. The cargo manifest of the current voyage
- D. The ship's radio licence
24. Which chapter of the IBC Code contains the criteria for assigning carriage requirements to products, used when evaluating new products?
- A. Chapter 21
- B. Chapter 11
- C. Chapter 16
- D. Chapter 4
25. In IBC Code chapter 17, what does 'Yes' in column i''' indicate?
- A. The product has a flash point exceeding 60°C (closed cup test)
- B. The product requires electrical equipment of group IIC
- C. The product is toxic
- D. The product must be inhibited
26. Under IBC Code 15.13, before a product requiring inhibition is shipped, the manufacturer's certificate of protection must state, among other things:
- A. The name and amount of inhibitor added, the date added and its normally expected duration of effectiveness, and any temperature limitations
- B. Only the price of the cargo
- C. Only the cargo quantity loaded
- D. The name of the ship's chief officer
27. Under the ISM Code, how often must the company carry out internal safety audits on board and ashore?
- A. At intervals not exceeding 12 months
- B. Every 5 years
- C. Every 30 months
- D. Only after an accident
28. What is the role of the Designated Person Ashore under the ISM Code?
- A. To provide a link between the company and those on board, with direct access to the highest level of management
- B. To command the ship in emergencies
- C. To act as the terminal's representative
- D. To issue the ship's statutory certificates
29. In the hierarchy of risk controls used in shipboard risk assessment, which control is considered most effective?
- A. Eliminating the hazard
- B. Issuing personal protective equipment
- C. Posting warning signs
- D. Training the crew to be more careful
30. In a positive tanker safety culture, what is the expected response when any crew member sees an unsafe condition during cargo operations?
- A. Use the stop-work authority, stop the job and report it without fear of blame
- B. Continue the work and mention it at the next monthly meeting
- C. Report it only if an accident occurs
- D. Ignore it if a senior officer is present
31. Why does the safety management system encourage the reporting of near misses on chemical tankers?
- A. Analysing near misses reveals hazards and system weaknesses so corrective action can be taken before an accident happens
- B. To identify crew members for disciplinary action
- C. Because near misses must be reported to the flag State within 24 hours
- D. To reduce the number of drills required
32. Under ISM Code element 5, which authority must the company clearly establish in its safety management system?
- A. The master's overriding authority and responsibility to make decisions on safety and pollution prevention and to request company assistance
- B. The terminal's authority to command the ship
- C. The charterer's authority to change the cargo plan
- D. The chief engineer's authority over cargo operations
33. What is the main purpose of a toolbox talk held before a cargo-related task such as connecting hoses or sampling a toxic cargo?
- A. To review the task steps, hazards, controls, PPE and each person's role with the team doing the work
- B. To record the overtime of the crew
- C. To replace the permit-to-work system
- D. To brief the terminal on the ship's history
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