SECTION 4 - MARINE MEASUREMENT
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1. 4.66 When carrying out a wall wash test of a vessel s cargo tank a number of discoloured areas on the tank surface are noted. If the discoloured areas are less than 20% of the tank s surface area, can these areas be sampled (wall washed) and included the tank sample?
    a. Yes
    b. No


2. 4.17 It has been determiend that ROB material is non-liquid and can only be measured from one gauge point. In order to calculate the volume of ROB, it should be assumed that the ROB is lying evenly across the bottom of the tank.
    a. True
    b. False


3. 4.38 What is the Reference Gauge Height of a vessel tank?
    a. The overall height of the expansion trunk, referred to in the drawings
    b. The distance from the tank bottom to the reference gauge point as specified on the tank s capacity table
    c. The measured distance from the tank bottom to the reference gauge point
    d. The place inside the tank where automatic measurement floats are installed
4. 4.12 When you board a vessel, what is the first thing you do?
    a. Start sampling
    b. Check to see if the inert gas system is on
    c. Report to the person in charge on the vessel
    d. Start taking temperatures
5. 4.13 What is the purpose of ballast?
    a. To keep the cargo warm
    b. To segregate cargoes
    c. To reduce the ship s fuel consumption
    d. To maintain the vessel s stability, trim and draft, and to control vessel stress
6. 4.58 Using the Imperial system of measurement; how far apart are draft mark numbers?
    a. 12 inches
    b. 9 inches
    c. 6 inches
    d. 3 inches
7. 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
8. 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
9. 4.07 The vessel s master states that he will load 15,000 MT of a product. Your instructions state that a maximum of 13,000 MT should be loaded. What will be your course of action?
    a. Assume the vessel s master has more up to date information
    b. Contact your principal for instructions.
    c. Help to calculate the stop gauge to be certain the ship is not overloaded.
    d. Leave the decision to the terminal.
10. 4.26 What is the amount of material found in a tank prior to loading called?
    a. Slops
    b. On Board Quantity (OBQ)
    c. Bunkers
    d. Remaining On Board (ROB)
11. 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


12. 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
13. 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
14. 4.86 What does API MPMS Chapter 17.9 / EI HM 49 cover:
    a. Temperature
    b. Sampling
    c. Vessel Experience Factors
    d. Gauging
15. 4.16 When is an OBQ inspection performed?
    a. Before loading a clean product
    b. Before any cargo is loaded
    c. Before any chemical is loaded
    d. Before loading a clean product after a dirty one
16. 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


17. 4.69 What must be determined at a pre-loading tank inspection key meeting between vessel s personnel, shore personnel and inspection personnel?
    a. Tank number, tank capacity, intended cargo volume
    b. The last three cargoes and method of tank cleaning
    c. The contents of adjacent tanks
    d. Information a., b. and c. must all be determined
18. 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
19. 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
20. 4.33 If the vessel is at a berth and rolling so that the cargo in the tank is moving more than 3 mm [1/8], the minimum number of gauges to be taken is?
    a. One
    b. Two
    c. Three
    d. Five
21. 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
22. 4.67 When carrying out a wall wash test of a vessel s cargo tank a number of discoloured areas, tank coating breaks and exposed sections on the tank surface are noted. If these areas are greater than 20% of the tank s surface area, what action should be taken?
    a. The areas should be washed and the wall washings included with those from the rest of the tank
    b. The areas should be noted on the inspection report but should not be washed
    c. The areas should be washed and the wall washings from these areas kept in a separate bottle
    d. The areas can be ignored
23. 4.60 When the metric system is used; what size are draft numbers?
    a. 6 inches high
    b. 6 centimetres high
    c. 12 centimetres high
    d. 10 centimetres high
24. 4.40 Is the holding of a key meeting prior to an inspection required to comply with Industry Standards
    a. Yes
    b. No


25. 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
26. 4.75 Who is responsible for determining that cargo on a vessel is loaded only into tanks with surfaces or coatings compatible with the cargo?
    a. The independent Inspector
    b. The shipper of the cargo
    c. Vessel s personnel
    d. Terminal personnel
27. 4.90 A valid VEF is one that results from at least five qualifying voyages:
    a. True
    b. False


28. 4.68 Should a wall wash be performed on a wet tank surface?
    a. Yes
    b. No


29. 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
30. 4.35 API MPMS Chapter 17.4/ISO 8697 does not address the issue of pumpability.
    a. True
    b. False


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