SECTION 4 - MARINE MEASUREMENT
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1. 4.18 Why may multipoint gauging be required when performing an OBQ/ROB survey?
    a. To help determine if a wedge condition exists
    b. To help determine the nature (liquid or non-liquid) and quantity of the OBQ/ROB
    c. Because the vessel is on even keel.
    d. Answers a. and b. are correct
2. 4.62 Which standard covers pre-loading inspection of vessels tanks?
    a. EI HM 4
    b. ISO 3170
    c. API MPMS Chapter 17.8
    d. Answers a., b. and c. are all wrong
3. 4.74 Pre-loading tank inspection may be limited to gauging OBQ.
    a. True
    b. False


4. 4.23 In what case will non-liquid ROB be considered not to be evenly distributed across the tank bottom?
    a. When the vessel is listing
    b. When the cargo was heated
    c. When multiple gauges in the tank prove otherwise
    d. When ROB is more than 10cm [4 ] deep
5. 4.30 When portable electronic gauging equipment is used on board a marine vessel, which of the following considerations needs to be addressed?
    a. The equipment used must securely fit the vapour control valve.
    b. The vessel s tank capacity tables must have been adjusted to accommodate the vapour control valve location and reference heigh
    c. The equipment should be grounded
    d. Answers a., b. and c. are all correct
6. 4.24 What components may be included in OBQ?
    a. Free water
    b. Non-liquid material
    c. Liquid material
    d. Any combination of the above
7. 4.84 It is acceptable for an inspector to sign Dry Certificates, Vessel Cleanliness certificates showing that cargo tanks are suitable for the intended cargo, ROB certificates with pumpability statements, and pumping logs.
    a. True
    b. False


8. 4.09 The term simultaneous ballasting or deballasting means?
    a. The vessel is transferring ballast from one ballast tank to another
    b. The vessel is taking on or pumping off ballast in more than one tank at a time
    c. The vessel is transferring ballast while cargo is being pumped
    d. The Chief Officer has been authorized to pump ballast ashore
9. 4.44 What is the main reason for taking draft readings on fully-loaded vessels at the loading port?
    a. To be used at the discharge port in case of a cargo variance
    b. To enable calculation of trim or list corrections if needed
    c. To compare with draft readings at the discharge port
    d. To ensure adequate cargo drainage
10. 4.27 What is the amount of material found in a tank after discharge called?
    a. Slops
    b. On Board Quantity (OBQ)
    c. Bunkers
    d. Remaining On Board (ROB)
11. 4.19 If a series of innage measurements indicates that the ROB/OBQ lies evenly across the bottom, how should you determine the volume?
    a. By use of trim corrections
    b. By applying the wedge formula
    c. By using an average of the innage measurements.
    d. By using the innage at the official gauge point
12. 4.39 As a minimum, how many liquid level measurements must be taken in a vessel s tanks when the vessel is in motion (rolling)?
    a. 2
    b. 3
    c. 4
    d. 5
13. 4.36 What term is used for the measurement of cargo through two or more openings in a tank?
    a. Repetitive motion gauging
    b. Duplicate gauging
    c. Multi-point gauging
    d. Hatch survey
14. 4.45 What should trim corrections be applied to?
    a. Only the ROB quantity
    b. Only the OBQ quantity
    c. Any liquid material
    d. Any liquid material that is touching all four tank bulkheads
15. 4.63 What is a wall wash test?
    a. A procedure involving high pressure automated washing of the walls of a tank to remove any cargo residue
    b. The activity of rinsing the wall of a tank with a solvent and obtaining a sample of the previous product(s) to determine compatibility with the product to be loaded
    c. A procedure in which a tank is washed with caustic solution to remove surface build-up
    d. Answers a., b. and c. are all wrong
16. 4.37 What is a Charter Party?
    a. A traditional event hosted by the owner of a vessel celebrating the vessel being hired
    b. A document specifying the dimensions of a vessel so it can get into the docks to load and unload its cargo
    c. A document outlining the terms and conditions that will apply to the owner and the charterer while a vessel is on hire
    d. A statement of the demurrage to be charged to the charterer
17. 4.14 When should a bunker inspection be performed?
    a. Only with fuel oil cargoes
    b. With every product except gasoline
    c. When requested by the vessel
    d. As appropriate or on the request of the principal
18. 4.50 When non-liquid material covers the whole bottom of a tank, trim corrections are applicable.
    a. True
    b. False


19. 4.82 Independent inspectors are not expected to correct barge tank gauges/dips for trim because most barges do not have trim tables.
    a. True
    b. False


20. 4.04 Can a free water volume be calculated using a wedge formula, if the water does not touch the forward bulkhead.
    a. Yes
    b. No


21. 4.76 Which of the following is most likely to require a tankentry inspection?
    a. Petrochemicals
    b. Jet fuel
    c. Diesel fuel
    d. Heavy fuel oil
22. 4.72 When wall washing a tank, which of the following is correct?
    a. Tank bottoms (floor) normally do not require wall washing
    b. There are two wall wash methods, blotter and funnel
    c. Each wall wash area should be at least 3 feet by 6 feet
    d. Answers a., b. and c. are all correct
23. 4.85 The best way to prove the liquid/non liquid nature of ROB/OBQ is to have a sample
    a. True
    b. False


24. 4.29 If possible, should you seal a vessel s cargo system sea-valves or any equivalent connection to the ballast system prior to loading?
    a. No
    b. Yes


25. 4.57 Using the Imperial system of measurement; what size are draft mark numbers?
    a. 12 inches high
    b. 9 inches high
    c. 6 inches high
    d. 3 inches high
26. 4.02 If the vessel has independently certified wedge tables, they may be used instead of calculating the wedge volume yourself.
    a. True
    b. False


27. 4.78 When reading the draft marks on a barge or vessel, which part of the number indicates the actual zero point (start) of the number in question?
    a. The lower edge of the number
    b. The upper edge of the number
    c. The mid point of the number
    d.
28. 4.06 What is the first thing you must do when you board a marine vessel?
    a. Report to the person in charge
    b. Have the tanks open, ready to gauge and sample
    c. Always take samples first
    d. Always take gauges first
29. 4.03 If a vessel is out of trim and product in a tank is touching all four bulkheads, should you use the wedge formula to calculate the volume?
    a. Yes
    b. No


30. 4.41 According to EI HM28 [API 17.1], is the inspector required to be present at a key meeting prior to an inspection?
    a. Yes
    b. No


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