SECTION 4 - MARINE MEASUREMENT
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คำชี้แจง
- ถ้าไม่กรอกทั้งชื่อ และนามสกุลของผู้ทำข้อสอบ ระบบจะไม่ตรวจข้อสอบให้
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- เกณฑ์ตัดสินผ่านการทดสอบอยู่ที่ร้อยละ 90 หรือ 27 ข้อขึ้นไป
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กรอกนามสกุล
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. 4.25 What is cargo that adheres to the bulkheads of a tank called?
    a. Slops
    b. Clingage
    c. Coatage
    d. Ballast
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. 4.05 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
5. 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
6. 4.48 The trim of a vessel will have no effect on the detection of free water.
    a. True
    b. False


7. 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
8. 4.89 When calculating a VEF, only the most recent twenty voyages should be used:
    a. True
    b. False


9. 4.70 A deck level inspection is the most effective form of tank inspection.
    a. True
    b. False


10. 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
11. 4.57 Using the Imperial system of measurement; what size are draft mark numbers?
    a. 12 inches high
    b. 9 inches high
    c. 6 inches high
    d. 3 inches high
12. 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
13. 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
14. 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
15. 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
16. 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
17. 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
18. 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


19. 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


20. 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
21. 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
22. 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
23. 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


24. 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


25. 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
26. 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
27. 4.34 In API MPMS Chapter 17.2 are there any guidelines for vessel inspection in adverse weather?
    a. Yes
    b. No


28. 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
29. 4.88 When calculating a VEF which of the following data should be excluded?
    a. Vessel to vessel transfers
    b. First voyage following dry dock
    c. Voyages where vessel or shore figures are known to be inaccurate
    d. Answers a., b. and c. are all correct
30. 4.85 The best way to prove the liquid/non liquid nature of ROB/OBQ is to have a sample
    a. True
    b. False


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