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. 4.24 What components may be included in OBQ? a. Free water b. Non-liquid material c. Liquid material d. Any combination of the above 2. 4.74 Pre-loading tank inspection may be limited to gauging OBQ. a. True b. False 3. 4.48 The trim of a vessel will have no effect on the detection of free water. a. True b. False 4. 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 5. 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 6. 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 7. 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 8. 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 9. 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 10. 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 11. 4.51 Which of the following conditions must be present for trim corrections to apply? a. Tank contents must touch all four bulkheads b. Tank contents must be non liquid c. Tank contents must not contact the forward bulkhead d. Answers a. and b. are correct 12. 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 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. 4.30 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 15. 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 16. 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 17. 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 18. 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 19. 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 20. 4.70 A deck level inspection is the most effective form of tank inspection. a. True b. False 21. 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 22. 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 23. 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 24. 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 25. 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) 26. 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 27. 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 28. 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 29. 4.65 What should the number of areas in a cargo tank to be wall washed be based upon? a. The last cargo b. The tank capacity c. The amount of wall wash medium you have d. The age of the vessel 30. 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 ให้ตรวจสอบชื่อนามสกุลว่ากรอกครบหรือไหม่ พร้อมกับตรวจข้อสอบว่าเลือกทำครบทุกข้อหรือไม่ ไม่ครบไม่ตรวจนะครับ

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