SECTION 4 - MARINE MEASUREMENT
คำชี้แจง - ถ้าไม่กรอกทั้งชื่อ และนามสกุลของผู้ทำข้อสอบ ระบบจะไม่ตรวจข้อสอบให้ - ถ้าทำข้อสอบไม่ครบ ระบบจะไม่ตรวจข้อสอบให้ - เกณฑ์ตัดสินผ่านการทดสอบอยู่ที่ร้อยละ 90 หรือ 45 ข้อขึ้นไป
แบบทดสอบนี้ มีจำนวนข้อสอบ 89 ข้อ หากต้องการเพิ่มจำนวนข้อ ให้เลือก เพิ่มจำนวนข้อเป็น 20 ข้อ 30 ข้อ 50 ข้อ

1. 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 2. 4.79 What should a sea valve be sealed to? a. The pump-man s wheel wrench b. An adjacent static object such as another valve or railing c. The main body of the sea valve d. The nameplate on the valve wheel 3. 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 4. 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 5. 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 6. 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 7. 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 8. 4.85 The best way to prove the liquid/non liquid nature of ROB/OBQ is to have a sample a. True b. False 9. 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 10. 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 11. 4.81 If a vessel is discharging under closed gauging conditions and the valve adapters on board are not compatible with the inspector s electronic gauging equipment. What action should be taken? a. The principal should be contacted for instructions b. The ship s gauging equipment should be used c. The ship s gauging equipment should be used but only after it has been verified against inspection company equipment and results recorded d. A manual tape should be used with open gauging 12. 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 13. 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 14. 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 15. 4.49 In what circumstances will a wedge condition exist? a. If liquid covers the bottom of the tank. b. If liquid does not touch all four bulkheads c. If liquid accumulates beneath the gauge hatch d. Answers a., b. and c. are all correct 16. 4.40 Is the holding of a key meeting prior to an inspection required to comply with Industry Standards a. Yes b. No 17. 4.87 Can a partial cargo VEF or compartmental VEF can be established? a. Yes b. No 18. 4.56 What is freeboard on a vessel? a. The distance from the waterline to the vessel s deck level b. The distance from the waterline to the vessel s keel c. The time when local Customs officials permit others to board the vessel d. The time of day that lay time begins according to the Charter Party 19. 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 20. 4.52 What is the definition of list? a. A piece of paper showing the names of all on board personnel b. The inclination or leaning of the vessel away from the upright c. The correction required when the vessel is not on even keel d. The position of the tank contents when the vessel is down by the head 21. 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 22. 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 23. 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 24. 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 25. 4.15 It is important when measuring ROB and OBQ to remember that? a. Liquid material is usually ullaged. b. Non-liquid material must be innaged. c. Vessel trim will have an effect on liquid quantities d. Answers a., b. and c. are all correct 26. 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 27. 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 28. 4.83 What should an inspector do if asked to sign a Dry Certificate: a. Sign it if reasonably sure the tanks are dry b. Sign it if the ship s crew confirms that the tanks are dry c. Refuse to sign as per IFIA guidelines d. None of the above 29. 4.59 What information is determined from draft readings? a. The depth of the vessel in the water b. The trim and list of the vessel c. The displacement weight of the vessel d. Answers a., b. and c. are all correct 30. 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 31. 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 32. 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. 33. 4.31 If there is spotting of the water paste above the clear cut level what would you use to calculate the volume? a. The very top of the spotting b. The clear cut but note the spotting volume in the remarks c. There is no mention of spotting in published standards d. Answers a., b. and c. are all wrong 34. 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 35. 4.55 What is the preferred method for preparing composite samples from vessel tanks? a. On board as long as every cargo tank contains the same cargo b. On board, using equal volumes from each tank c. In a laboratory, in proportion to the volume in each tank d. In a laboratory when S&W and API Gravity are the only tests needed 36. 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 37. 4.68 Should a wall wash be performed on a wet tank surface? a. Yes b. No 38. 4.28 If the Master refuses to allow manual vessel measurements to be taken in accordance with inspection instructions , what should the inspector do? a. Contact the principals immediately, via the inspection company office if appropriate b. Issue a letter of protest to the vessel c. Comply with the Master s instructions d. Answers a., b. and c. are all correct 39. 4.25 What is cargo that adheres to the bulkheads of a tank called? a. Slops b. Clingage c. Coatage d. Ballast 40. 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 41. 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 42. 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 43. 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 44. 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 45. 4.01 If the vessel incurs an in transit loss of product and an in transit gain in water, what action should be taken? a. Obtain samples of the free water b. Check the vessel s bunkers and bunker consumption during the voyage c. Verify the condition of seals on the sea suction and overboard discharge valves d. Answers a., b. and c. are all correct 46. 4.20 Is it correct to apply a wedge calculation to an OBQ/ROB volume if the material is touching all four tank bulkheads ? a. No b. Yes 47. 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 48. 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 49. 4.89 When calculating a VEF, only the most recent twenty voyages should be used: a. True b. False 50. 4.22 The On Board Quantity (OBQ) measured at a loading port will usually be greater than the remaining on board (ROB) measured at the previous discharge port. a. True b. False ให้ตรวจสอบชื่อนามสกุลว่ากรอกครบหรือไหม่ พร้อมกับตรวจข้อสอบว่าเลือกทำครบทุกข้อหรือไม่ ไม่ครบไม่ตรวจนะครับ

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