,Petroleum คำชี้แจง
- ถ้าไม่กรอกทั้งชื่อ และนามสกุลของผู้ทำข้อสอบ ระบบจะไม่ตรวจข้อสอบให้
- ส่วนนี้จะไม่มีการบันทึกผลสอบ หากต้องการบันทึกโปรดสมัครสมาชิก
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- ผู้ทำข้อสอบจะมีเวลาในการทำข้อสอบเพียง 30 นาที หากเกินเวลา ระบบจะไม่ตรวจข้อสอบให้
- เกณฑ์ตัดสินผ่านการทดสอบอยู่ที่ร้อยละ 80 หรือ 8 ข้อขึ้นไป
ส่วนนี้จะไม่มีการบันทึกผลสอบ และแสดงเฉลยแบบทดสอบ หากต้องการบันทึก และรายงานการทำแบบทดสอบ โปรดสมัครสมาชิก 
1. 8.24 According to ISO 4268 [API Chapter 7] the minimum amount of time a stationary PET should stay in a product with a density greater than 935 kg/m3 is ?
    a. 10 minutes
    b. 1 minute
    c. 5 minutes
    d. Until the readout doesn t vary by more than 0.1°C [0.2°F] for 30 seconds
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. 8.41 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
4. 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]
5. 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.
6. 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
7. 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
8. 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
9. 8.28 When using a portable electronic thermometer what is an indication of temperature stabilization?
    a. Comparison with the side temperature on the tank
    b. Comparison with a cup-case thermometer
    c. Comparison with the last temperature recorded by the terminal
    d. Readout doesn t vary by more than 0.1°C [0.2°F] for 30 seconds
10. 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
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