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CSS Solved Papers
Physics Chemistry

Engineering :: Heat Transfer

  The temperature inside a furnace is generally measured by
[A]. Mercury thermometer[B]. Alcohol thermometer
[C]. Gas thermometer[D]. Optical pyrometer
[E]. Any of the above    

Answer: Option D
atif said:    
 
Information optical pyrometer can measure high temperatures without touching the system ranges from 500 degree celcius to 3000 degree celcius.
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