Thermal Properties of Matter - Result Question 7

7. The temperature of inversion of a thermocouple is 620C and the neutral temperature is 300C. What is the temperature of cold junction?

[2005]

(a) 320C

(b) 20C

(c) 20C

(d) 40C

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Answer:

Correct Answer: 7. (c)

Solution:

(c) θn=θc+θi2

θc=2θnθi=2(300)620=20C



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