A chromel – alumel thermocouple of diameter 0.7 mm is used to measure the temperature of a gas stream for which h = 600 W/sqm K. Acceptable reading of the temperature can be taken after (specific heat = 400 J/kg K, Density = 8600 kg/cum)

A chromel – alumel thermocouple of diameter 0.7 mm is used to measur

1.	A chromel – alumel thermocouple of diameter 0.7 mm is used to measure the temperature of a gas stream for which h = 600 W/sqm K. Acceptable reading of the temperature can be taken after (specific heat = 400 J/kg K, Density = 8600 kg/cum)
A.	1 second
B.	4 seconds
C.	2 seconds
D.	3 seconds
Answer» B. 4 seconds

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A chromel – alumel thermocouple of diameter 0.7 mm is used to measure the temperature of a gas stream for which h = 600 W/sqm K. Acceptable reading of the temperature can be taken after (specific heat = 400 J/kg K, Density = 8600 kg/cum)

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