SECTION 8 – TEMPERATURE MEASUREMENT
คำชี้แจง - ถ้าไม่กรอกทั้งชื่อ และนามสกุลของผู้ทำข้อสอบ ระบบจะไม่ตรวจข้อสอบให้ - ถ้าทำข้อสอบไม่ครบ ระบบจะไม่ตรวจข้อสอบให้ - เกณฑ์ตัดสินผ่านการทดสอบอยู่ที่ร้อยละ 80 หรือ 16 ข้อขึ้นไป
ทุกครั้งที่เข้าทำแบบทดสอบเสร็จสมบูรณ์ จะได้รับแต้มเข้าใช้งาน 1 แต้ม | ส่วนนี้จะทำการบันทึกข้อมูลเพื่อออกใบรับรอง หากทำแบบทดสอบผ่านเกณฑ์ที่กำหนด
แบบทดสอบนี้ มีจำนวนข้อสอบ 55 ข้อ หากต้องการเพิ่มจำนวนข้อ ให้เลือก เพิ่มจำนวนข้อเป็น 20 ข้อ 30 ข้อ 50 ข้อ

1. 8.15 What information must be recorded when taking a temperature of a cargo using an in-line probe ? a. The last calibration date b. The serial number of the unit being used c. The last two times the probe was checked for accuracy d. Answers a., b. and c. are all wrong 2. 8.51 The immersion time for a cup-case assembly is minimized by continually raising and lowering the assembly 0.3m [1 foot] above and below the desired temperature measurement point. a. True b. False c. d. 3. 8.46 When taking the temperature of a product in a tank and there is more than 1°C [2 °F] difference between upper, middle and lower temperatures, what steps should be taken? a. Retake the temperatures since there must be an error b. Use the middle temperature only for the entire tank contents c. Average the upper, middle and lower temperatures d. Take temperatures at more frequent, equally-spaced vertical increments 4. 8.10 To what increment should the display of a portable electronic thermometer be capable of reading? a. 0.5 °F or °C b. 0.1 °F or °C c. 1.0 °F or °C d. 0.25 °F or °C 5. 8.32 When taking temperatures for ROB, OBQ or slops containing oil and water it is important ____ a. That the probe doesn t touch the steam coils b. That the tank is corrected for list / trim c. That the probe is placed at the mid-point of the oil or the oily layer d. That only a middle temperature is taken for slops 6. 8.20 What is the minimum amount of product needed for a temperature to be taken? a. Whenever there is sufficient material present to immerse the probe b. 30 cm [1 foot] c. One metre [3 feet] d. Temperatures should only be taken when the roof is floating freely 7. 8.42 In motion is defined as continuously raising and lowering the probe above and below the desired temperature measurement depth, by approximately how much? a. 15cm [6 inches] b. 1metre [40 inches] c. 30cm [12 inches] d. 50cm [20 inches] 8. 8.31 What is the maximum amount by which the reading on a portable electronic thermometer can vary when it may be considered to have stabilized? a. 0.3 °C [0.5°F] b. 1 °C [2.0°F] c. No variation is permitted d. 0.1 °C [0.2°F] 9. 8.05 How does calibration of a portable electronic thermometer differ from a field check? a. It is done by the responsible manager b. It is performed by a certified third party auditor c. It is verified in controlled conditions against a standard thermometer traceable to national standards d. There is no difference between the two 10. 8.11 Which standards address the earthing (grounding) of portable electronic thermometers? a. API MPMS Chapter 7/ISO 4268 b. API MPMS Chapter 3/EI HM4 c. API MPMS Chapter 8.1/ISO 3170 d. API MPMS Chapter 17.9/EI HM49 11. 8.36 A liquid-in-glass thermometer with a range between 60°F and 180°F and must be accurate to within? a. ± 1.0 °F b. ± 0.5 °F c. ± 0.1 °F d. ± 0.25 °F 12. 8.13 Upright cylindrical storage tanks have calibration tables based on a specific tank shell temperature. If the observed tank shell temperature differs from the calibration table tank temperature will the volumes extracted from the calibration table will need to be corrected for this temperature difference? a. Yes b. No c. d. 13. 8.17 If a tank has more than 4.5 m [15 feet] of liquid, what is the minimum number of temperature readings that must be taken? a. 3 b. 5 c. 1 d. one every 1 m [3 feet] 14. 8.48 What is the recommended immersion time, for a liquid-in-glass thermometer in a cup-case assembly, in motion, in a product with density of 950 kg/m3 [API gravity 17.4] a. 45 minutes b. 10 minutes c. 20 minutes d. Until the readout doesn t vary by more than 3.0 °C for 30 seconds 15. 8.38 How should scale graduation marks be applied to a liquid-in-glass thermometer? a. They must be etched permanently on the stem of the thermometer b. They must be etched permanently on the cup-case assembly c. They must be on a metal plate attached to either the thermometer or the cup-case assembly d. Answer a., b. or c. is correct 16. 8.14 When using a liquid-in-glass thermometer it is important to consider that a. It should remain in the oil long enough to reach the temperature of the liquid b. It takes longer to obtain temperatures with a liquid in glass thermometer than a portable electronic thermometer c. It should be lowered using a gauging tape d. Answers a. and b are correct 17. 8.53 What is the purpose of keeping the probe of a portable electronic thermometer (PET) in motion? a. To ensure the unit is calibrated b. To stir the product c. To minimize temperature stabilization time d. To prevent the probe becoming caught up in the tank ladder 18. 8.33 When using a portable electronic thermometer, what is the minimum amount of time the probe must stay in a middle distillate of density 821.7 kg/m3 [API gravity 40.7] , if the probe is moving? a. 30 seconds b. 1 minute c. 2 minutes d. 5 minutes 19. 8.19 The quickest way to stabilize the reading from a portable electronic thermometer (PET) is to? a. Allow the probe to stay in the product for twice the required time b. Move the probe up and down at least 30 cm [1 foot] above and below the spot the temperature is to be taken c. Use fresh batteries d. There is no way to speed up the stabilization process 20. 8.03 Is a portable electronic thermometer required to have a low voltage indicator? a. Yes b. No c. d. ให้ตรวจสอบชื่อนามสกุลว่ากรอกครบหรือไหม่ พร้อมกับตรวจข้อสอบว่าเลือกทำครบทุกข้อหรือไม่ ไม่ครบไม่ตรวจนะครับ

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