SECTION 8 – TEMPERATURE MEASUREMENT
คำชี้แจง - ถ้าไม่กรอกทั้งชื่อ และนามสกุลของผู้ทำข้อสอบ ระบบจะไม่ตรวจข้อสอบให้ - ถ้าทำข้อสอบไม่ครบ ระบบจะไม่ตรวจข้อสอบให้ - เกณฑ์ตัดสินผ่านการทดสอบอยู่ที่ร้อยละ 80 หรือ 24 ข้อขึ้นไป
แบบทดสอบนี้ มีจำนวนข้อสอบ 55 ข้อ หากต้องการเพิ่มจำนวนข้อ ให้เลือก เพิ่มจำนวนข้อเป็น 20 ข้อ 30 ข้อ 50 ข้อ

1. 8.39 An ASTM 59C [ASTM 59F-80] liquid-in-glass thermometer has a scale range of -18°C to 82°C [0°F-180°F]. What should the graduations on this thermometer be? a. 0.1°C [0.2°F] b. 0.25°C [0.5°F] c. 1.0°C [2.0°F] d. 0.5°C [1.0°F] 2. 8.06 On a portable electronic thermometer, what should be checked at least once per month? a. The junction between the cable and the probe for mechanical damage b. The cable insulation for cuts, breaks, or abrasion. c. Two or more temperatures near the ends of the range of the probe d. Answers a., b. and c. are all correct 3. 8.26 If a tank has an innage of 2,8m [9 11 ] what is the minimum number of temperatures which should be taken? a. One b. Two c. Three d. None 4. 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 5. 8.37 Which API MPMS Chapter covers temperature determination? a. Chapter 3 b. Chapter 7 c. Chapter 8 d. Chapter 17 6. 8.16 What must be done immediately before taking temperatures using a portable electronic thermometer? a. Set the temperature range selector. b. Earth (ground) the unit, after opening the gauge hatch or vapour control valve c. Check the battery for low voltage d. Earth (ground) the unit, before opening the gauge hatch or vapour control valve 7. 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 8. 8.41 A liquid-in-glass thermometer must be verified against a thermometer traceable to a national standard when new and then at maximum intervals of? a. 3 months b. 6 months c. 1 year d. 5 years 9. 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 10. 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. 11. 8.03 Is a portable electronic thermometer required to have a low voltage indicator? a. Yes b. No c. d. 12. 8.54 According to API MPMS Chapter 17.1, the preferred instrument for taking temperature is? a. A liquid-in-glass thermometer b. A portable electronic thermometer c. An in-line temperature probe d. A preferred instrument is not specified 13. 8.34 A thermowell used to measure temperature must be filled with a suitable heat-transfer liquid. a. True b. False c. d. 14. 8.45 What is the minimum number of temperatures to be taken in a tank containing less than 3m [10 feet] of product? a. 1 b. 3 c. 5 d. 2 15. 8.07 When verifying a portable electronic thermometer with a range of 0 to 95 °C [32 to 200°F] , what is the maximum permissible error before it should be recalibrated? a. ± 0.3 °C [0.2°F] b. ± 0.05 °C [0.1°F] c. ± 1.0 °C [2.0°F] d. Answers a., b. and c. are all wrong - it must be exact 16. 8.18 If only one temperature is required where should this temperature be taken from? a. The middle of the upper third b. The middle of the liquid level c. The middle of the lower third. d. Use a side readout thermometer 17. 8.27 On a portable electronic thermometer, at what temperature should the field check be performed ? a. 0°C [32°F] b. 100°C [212°F] c. Ambient temperature d. Expected cargo temperature 18. 8.23 Liquid-in-glass thermometers are suitable for use in obtaining cargo product temperatures in marine vessels required to operate with closed or restricted systems? a. True b. False c. d. 19. 8.01 API MPMS Chapter 7/ISO 4268 pertains to what type of thermometers? a. Mercury-in-glass b. Alcohol-in-glass c. Portable electronic thermometers d. Answers a., b. and c. are all correct 20. 8.04 Why do portable electronic thermometers have low-voltage indicators? a. So that it will not fail half way through the inspection b. The unit could give false readings if the battery is low c. If the voltage drops, the night-light will not work d. Most portable electronic thermometers do not have an indicator 21. 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 22. 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 23. 8.29 What is the minimum number of temperatures to be taken on a marine vessel with tanks containing less than 3m [10 feet] of product? a. One per tank b. Three per tank c. Weighted average per tank d. Answers a., b. and c. are all wrong 24. 8.44 When using a liquid-in-glass thermometer in a cup-case assembly to measure a product with density of 904 kg/m3 [API gravity 24.9] what is the minimum length of time the thermometer should be immersed in the liquid when the assembly is in motion during the measurement process? a. 5 minutes b. 10 minutes c. 20 minutes d. Until the readout doesn t vary by more than 0.2 °C for 30 seconds 25. 8.35 Which ISO standard covers temperature determination? a. ISO 3171 b. ISO 4268 c. ISO 4512 d. ISO 4266 26. 8.25 According to API MPMS Chapter 7 the minimum amount of time that an in motion probe should stay in a product with an API gravity less than 20 is? a. 80 minutes b. 30 minutes c. 75 seconds d. 10 seconds 27. 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 28. 8.52 What procedure is used to field check a liquid-inglass thermometer in a cupcase assembly? a. It is checked against a portable electronic thermometer b. It is checked it against the ship’s thermometer c. it is checked for cracks, cleanliness and a readable scale and the liquid column is checked as unbroken d. It is placed in a 100°F water bath with a certified thermometer for 45 minutes and compare the readings. They must be within 0.2°C [0.1°F] 29. 8.21 To what increment should a portable electronic thermometer be read and recorded? a. The nearest 0.5°C or °F b. The nearest 1°C or °F c. The nearest 0.1°C or °F d. Answers a.,b. and c. are all wrong. 30. 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 ให้ตรวจสอบชื่อนามสกุลว่ากรอกครบหรือไหม่ พร้อมกับตรวจข้อสอบว่าเลือกทำครบทุกข้อหรือไม่ ไม่ครบไม่ตรวจนะครับ

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