SECTION 4 - MARINE MEASUREMENT
คำชี้แจง - ถ้าไม่กรอกทั้งชื่อ และนามสกุลของผู้ทำข้อสอบ ระบบจะไม่ตรวจข้อสอบให้ - ถ้าทำข้อสอบไม่ครบ ระบบจะไม่ตรวจข้อสอบให้ - เกณฑ์ตัดสินผ่านการทดสอบอยู่ที่ร้อยละ 90 หรือ 18 ข้อขึ้นไป
ทุกครั้งที่เข้าทำแบบทดสอบเสร็จสมบูรณ์ จะได้รับแต้มเข้าใช้งาน 1 แต้ม | ส่วนนี้จะทำการบันทึกข้อมูลเพื่อออกใบรับรอง หากทำแบบทดสอบผ่านเกณฑ์ที่กำหนด
แบบทดสอบนี้ มีจำนวนข้อสอบ 89 ข้อ หากต้องการเพิ่มจำนวนข้อ ให้เลือก เพิ่มจำนวนข้อเป็น 20 ข้อ 30 ข้อ 50 ข้อ

1. 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 2. 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 3. 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 4. 4.85 The best way to prove the liquid/non liquid nature of ROB/OBQ is to have a sample a. True b. False 5. 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 6. 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 7. 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 8. 4.90 A valid VEF is one that results from at least five qualifying voyages: a. True b. False 9. 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 10. 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 11. 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 12. 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. 13. 4.70 A deck level inspection is the most effective form of tank inspection. a. True b. False 14. 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 15. 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 16. 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 17. 4.48 The trim of a vessel will have no effect on the detection of free water. a. True b. False 18. 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 19. 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 20. 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 ให้ตรวจสอบชื่อนามสกุลว่ากรอกครบหรือไหม่ พร้อมกับตรวจข้อสอบว่าเลือกทำครบทุกข้อหรือไม่ ไม่ครบไม่ตรวจนะครับ

1. โครงสร้างข้อมูลและอัลกอริทึม

2. แนวข้อสอบ วิทยาศาสตร์ ชุดที่5

3. เรื่อง สิ่งมีชีวิตกับกระบวนการดำรงชีวิต ป.3 ชุดที่1

4. อาหารกับการดำรงชีวิต ม.1