SECTION 4 - MARINE MEASUREMENT

SECTION คำชี้แจง
- ถ้าไม่กรอกทั้งชื่อ และนามสกุลของผู้ทำข้อสอบ ระบบจะไม่ตรวจข้อสอบให้
- ส่วนนี้จะไม่มีการบันทึกผลสอบ หากต้องการบันทึกโปรดสมัครสมาชิก
- ถ้าทำข้อสอบไม่ครบ ระบบจะไม่ตรวจข้อสอบให้
- ผู้ทำข้อสอบจะมีเวลาในการทำข้อสอบเพียง 30 นาที หากเกินเวลา ระบบจะไม่ตรวจข้อสอบให้
- เกณฑ์ตัดสินผ่านการทดสอบอยู่ที่ร้อยละ 90 หรือ 27 ข้อขึ้นไป
ส่วนนี้จะไม่มีการบันทึกผลสอบ และแสดงเฉลยแบบทดสอบ หากต้องการบันทึก และรายงานการทำแบบทดสอบ โปรดสมัครสมาชิก 
1. 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
2. 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
3. 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
4. 4.34 In API MPMS Chapter 17.2 are there any guidelines for vessel inspection in adverse weather?
    a. Yes
    b. No


5. 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
6. 4.43 What is meant by the term trimmed by the stern?
    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 aft peak tank.
    d. Trim corrections will always be subtracted from the measured gauge
7. 4.50 When non-liquid material covers the whole bottom of a tank, trim corrections are applicable.
    a. True
    b. False


8. 4.54 Typically, four parties receive samples at the loading port when a marine tank vessel is loaded. Three of those parties are (1) the independent inspector, (2) the vessel for delivery to the discharging terminal, (3) The vessel for retain. Who is the fourth party?
    a. The cargo owner
    b. The vessel for retain
    c. The vessel s agent
    d. The load port terminal
9. 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
10. 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
11. 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.
12. 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
13. 4.74 Pre-loading tank inspection may be limited to gauging OBQ.
    a. True
    b. False


14. 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
15. 4.85 The best way to prove the liquid/non liquid nature of ROB/OBQ is to have a sample
    a. True
    b. False


16. 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
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. 4.04 Can a free water volume be calculated using a wedge formula, if the water does not touch the forward bulkhead.
    a. Yes
    b. No


19. 4.71 During a tank entry inspection, which of the following is not correct?
    a. Since more than one person will be entering the tank, it is not necessary to have a standby person at the hatch
    b. All pipelines should be drained and verified empty
    c. The tank atmosphere should be tested for safe entry
    d. All surface areas should be checked for possible contamination, tank coating condition and loose rust
20. 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
21. 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


22. 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
23. 4.75 Who is responsible for determining that cargo on a vessel is loaded only into tanks with surfaces or coatings compatible with the cargo?
    a. The independent Inspector
    b. The shipper of the cargo
    c. Vessel s personnel
    d. Terminal personnel
24. 4.20 Is it correct to apply a wedge calculation to an OBQ/ROB volume if the material is touching all four tank bulkheads ?
    a. No
    b. Yes


25. 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
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. 4.58 Using the Imperial system of measurement; how far apart are draft mark numbers?
    a. 12 inches
    b. 9 inches
    c. 6 inches
    d. 3 inches
28. 4.70 A deck level inspection is the most effective form of tank inspection.
    a. True
    b. False


29. 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
30. 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
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