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. 4.79 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 2. 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 3. 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 4. 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 5. 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 6. 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 7. 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 8. 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 9. 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 10. 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 11. 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 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. 4.65 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 14. 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 15. 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 16. 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 17. 4.50 When non-liquid material covers the whole bottom of a tank, trim corrections are applicable. a. True b. False 18. 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 19. 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 20. 4.74 Pre-loading tank inspection may be limited to gauging OBQ. a. True b. False 21. 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 22. 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 23. 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 24. 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. 25. 4.85 The best way to prove the liquid/non liquid nature of ROB/OBQ is to have a sample a. True b. False 26. 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 27. 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 28. 4.80 According to Energy Institute HM28 / HM29 API MPMS Chapter 17.1, what should happen as part of a shore inspection? a. The Terminal should tell the Inspector the condition of the line b. A line fullness verification procedure should be requested to verify line condition c. Unless instructed otherwise, the Inspector should assume that the line is full before and after transfer of product d. Answers a., b. and c. are all correct 29. 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 30. 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 ให้ตรวจสอบชื่อนามสกุลว่ากรอกครบหรือไหม่ พร้อมกับตรวจข้อสอบว่าเลือกทำครบทุกข้อหรือไม่ ไม่ครบไม่ตรวจนะครับ

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