SECTION 8 – TEMPERATURE MEASUREMENT
คำชี้แจง
- ถ้าไม่กรอกทั้งชื่อ และนามสกุลของผู้ทำข้อสอบ ระบบจะไม่ตรวจข้อสอบให้
- ผลสอบจะเก็บเพียง 300 ระเบียนสุดท้าย โดยเรียงจากเวลาล่าสุด
- ถ้าทำข้อสอบไม่ครบ ระบบจะไม่ตรวจข้อสอบให้
- ผู้ทำข้อสอบจะมีเวลาในการทำข้อสอบเพียง 30 นาที หากเกินเวลา ระบบจะไม่ตรวจข้อสอบให้
- เมื่อมีการตรวจคำตอบ ระบบจะบันทึกชื่อ และคะแนนลงฐานข้อมูล พร้อมเวลาเริ่มทำ และเวลาสิ้นสุด
- เกณฑ์ตัดสินผ่านการทดสอบอยู่ที่ร้อยละ 80 หรือ 40 ข้อขึ้นไป
หน้าแรก ข้อสอบใหม่ สร้างใหม่ เฉลยข้อสอบ
หากต้องการพิมพ์ใบรับรองผลคะแนน โปรดใช้เครื่อง Computer ในการทดสอบ
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1. 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]
2. 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]
3. 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
4. 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
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. 8.36 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
7. 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
8. 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
9. 8.40 When first received from the manufacturer or equipment supplier, what should happen to a new liquid-in-glass tank thermometer?
    a. It can be used immediately because the manufacturer calibrates the thermometer before it is shipped
    b. It must be checked to see that the liquid column is intact, then it may be used since the manufacturer will have calibrated the thermometer.
    c. It must be checked to see that the glass stem is not cracked or broken, then it may be used since the manufacturer will have calibrated the thermometer
    d. It must be compared against a thermometer certified by a National Standard body or an equivalent thermometer of traceable accuracy.
10. 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
11. 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
12. 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
13. 8.37 Which API MPMS Chapter covers temperature determination?
    a. Chapter 3
    b. Chapter 7
    c. Chapter 8
    d. Chapter 17
14. 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
15. 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
16. 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
17. 8.09 What is the minimum acceptable accuracy for a portable electronic thermometer when it is indicating a temperature reading of 101 °C [215°F]?
    a. ± 1.0 °C [2.0°F]
    b. ± 0.5 °C [1.0°F]
    c. ± 0.3 °C [0.5°F]
    d. ± 0.75 °C [1.5°F]
18. 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
19. 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