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. 4.77 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 2. 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 3. 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 4. 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 5. 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 6. 4.89 When calculating a VEF, only the most recent twenty voyages should be used: a. True b. False 7. 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 8. 4.70 A deck level inspection is the most effective form of tank inspection. a. True b. False 9. 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 10. 4.64 What is a wipe test? a. The procedure of wiping sample containers to ensure they are clean before being submitted to the laboratory b. The procedure of physically wiping a tanks interior surface with absorbent white rags to test for possible contamination c. A specialized laboratory test for the presence of water, iron, polymers and emulsion d. Answers a., b. and c. are all wrong 11. 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 12. 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 13. 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. 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. 4.84 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 16. 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 17. 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 18. 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 19. 4.86 What does API MPMS Chapter 17.9 / EI HM 49 cover: a. Temperature b. Sampling c. Vessel Experience Factors d. Gauging 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. 4.48 The trim of a vessel will have no effect on the detection of free water. a. True b. False 22. 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 23. 4.85 The best way to prove the liquid/non liquid nature of ROB/OBQ is to have a sample a. True b. False 24. 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 25. 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 26. 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 27. 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 28. 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 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. 4.79 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 ให้ตรวจสอบชื่อนามสกุลว่ากรอกครบหรือไหม่ พร้อมกับตรวจข้อสอบว่าเลือกทำครบทุกข้อหรือไม่ ไม่ครบไม่ตรวจนะครับ

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