SECTION 4 - MARINE MEASUREMENT
คำชี้แจง - ถ้าไม่กรอกทั้งชื่อ และนามสกุลของผู้ทำข้อสอบ ระบบจะไม่ตรวจข้อสอบให้ - ถ้าทำข้อสอบไม่ครบ ระบบจะไม่ตรวจข้อสอบให้ - เกณฑ์ตัดสินผ่านการทดสอบอยู่ที่ร้อยละ 90 หรือ 27 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. 4.63 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 3. 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. 4. 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 5. 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 6. 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 7. 4.85 The best way to prove the liquid/non liquid nature of ROB/OBQ is to have a sample a. True b. False 8. 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 9. 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 10. 4.89 When calculating a VEF, only the most recent twenty voyages should be used: a. True b. False 11. 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 12. 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 13. 4.08 When you are on board a marine vessel, the overall responsibility for the use of proper safety procedures, appropriate measurement equipment and the correct sampling equipment rests with? a. The inspector b. The inspection company that the inspector works for c. The vessel d. The inspection company s principal 14. 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 15. 4.87 Can a partial cargo VEF or compartmental VEF can be established? a. Yes b. No 16. 4.68 Should a wall wash be performed on a wet tank surface? a. Yes b. No 17. 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 18. 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 19. 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 20. 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 21. 4.11 Why is measurement of free water on board marine vessels important? a. To enable net cargo reconciliation b. As a check against water quantities received at the shore terminal c. As an indication of possible cargo theft d. Answers a., b. and c. are all correct 22. 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 23. 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 24. 4.48 The trim of a vessel will have no effect on the detection of free water. a. True b. False 25. 4.74 Pre-loading tank inspection may be limited to gauging OBQ. a. True b. False 26. 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 27. 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 28. 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 29. 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 30. 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 ให้ตรวจสอบชื่อนามสกุลว่ากรอกครบหรือไหม่ พร้อมกับตรวจข้อสอบว่าเลือกทำครบทุกข้อหรือไม่ ไม่ครบไม่ตรวจนะครับ

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