SECTION 4 - MARINE MEASUREMENT
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1. 4.46 What is the most accurate way of measuring a vessel s list?
    a. Ask the Chief Officer
    b. Reading the clinometer
    c. By comparing the port and starboard amidships draft marks
    d. By comparing the fore and aft drafts
2. 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
3. 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
4. 4.73 It is not necessary to prepare a blank of the wall wash liquid if it is supplied by a certified Laboratory.
    a. True
    b. False


5. 4.54 Typically, four parties receive samples at the loading port when a marine tank vessel is loaded. Three of those parties are (1) the independent inspector, (2) the vessel for delivery to the discharging terminal, (3) The vessel for retain. Who is the fourth party?
    a. The cargo owner
    b. The vessel for retain
    c. The vessel s agent
    d. The load port terminal
6. 4.21 If you are only able to gauge the vessel s tanks from one location and the ROB is non-liquid, what should you use to obtain a volume?
    a. A wedge table or formula
    b. A trim corrected innage
    c. An uncorrected innage
    d. A trim corrected ullage
7. 4.74 Pre-loading tank inspection may be limited to gauging OBQ.
    a. True
    b. False


8. 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


9. 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
10. 4.85 The best way to prove the liquid/non liquid nature of ROB/OBQ is to have a sample
    a. True
    b. False


11. 4.68 Should a wall wash be performed on a wet tank surface?
    a. Yes
    b. No


12. 4.88 When calculating a VEF which of the following data should be excluded?
    a. Vessel to vessel transfers
    b. First voyage following dry dock
    c. Voyages where vessel or shore figures are known to be inaccurate
    d. Answers a., b. and c. are all correct
13. 4.50 When non-liquid material covers the whole bottom of a tank, trim corrections are applicable.
    a. True
    b. False


14. 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
15. 4.70 A deck level inspection is the most effective form of tank inspection.
    a. True
    b. False


16. 4.53 When should a wedge formula calculation be used on a vessel trimmed by the stern?
    a. When liquid material does not contact the forward bulkhead
    b. When solid material is gauged at a single gauge point
    c. When free water completely covers the tank bottom
    d. Answers a., b. and c. are all correct
17. 4.87 Can a partial cargo VEF or compartmental VEF can be established?
    a. Yes
    b. No


18. 4.05 The preferred device for taking temperatures in a marine custody transfer is?
    a. A liquid-in-glass thermometer in a cup-case assembly
    b. An in-line temperature probe
    c. An on-board radar system
    d. A portable electronic thermometer
19. 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
20. 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


21. 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


22. 4.42 What is meant by the term trimmed by the head?
    a. The aft draft reading is greater that the forward draft reading.
    b. The forward draft reading is greater than the aft draft reading.
    c. The ship has water in the forepeak tank.
    d. Trim corrections will always be added to the measured gauge
23. 4.32 If a vessel is being gauged in a swell the minimum number of dips per tank should be?
    a. One
    b. As many as necessary until two identical readings are obtained
    c. Three and then averaged
    d. At least five, taken over the period of the motion, recorded and then averaged
24. 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


25. 4.61 When taking a draft reading which is in metric units; what is the distance between each number?
    a. 6 inches
    b. 5 centimetres
    c. 12 centimetres
    d. 10 centimetres
26. 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
27. 4.77 Why should you never break blisters in a tank coating and never disturb piles of debris on a tank floor when performing a tank entry inspection?
    a. The tank atmosphere may be adversely affected
    b. The Inspector may come into contact with potentially dangerous, unknown material
    c. It is the responsibility of vessels personnel to remove debris and prepare the tank surface before the tank is loaded
    d. Answers a., b. and c. are all correct
28. 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.
29. 4.10 Once sea valves are sealed by an independent inspector, the vessel staff should not operate those valves during custody transfer without consulting with the inspector.
    a. True
    b. False


30. 4.48 The trim of a vessel will have no effect on the detection of free water.
    a. True
    b. False


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