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. 4.16 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 2. 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 3. 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 4. 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 5. 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 6. 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 7. 4.70 A deck level inspection is the most effective form of tank inspection. a. True b. False 8. 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 9. 4.50 When non-liquid material covers the whole bottom of a tank, trim corrections are applicable. a. True b. False 10. 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 11. 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 12. 4.27 What is the amount of material found in a tank after discharge called? a. Slops b. On Board Quantity (OBQ) c. Bunkers d. Remaining On Board (ROB) 13. 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 14. 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 15. 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. 16. 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 17. 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 18. 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 19. 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 20. 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 21. 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 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. 4.38 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 24. 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 25. 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 26. 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) 27. 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 28. 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 29. 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 30. 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 ให้ตรวจสอบชื่อนามสกุลว่ากรอกครบหรือไหม่ พร้อมกับตรวจข้อสอบว่าเลือกทำครบทุกข้อหรือไม่ ไม่ครบไม่ตรวจนะครับ

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