Question 4
Marks : +2 | -2
Pass Ratio : 100%
Which of the following is correct for temperature gradient?
Explanation: Temperature gradient is a factor which describes both rate and direction of temperature change.
Question 7
Marks : +2 | -2
Pass Ratio : 100%
Internal temperature of a hot body is measured by measuring __________________
Explanation: External surface temperature is measured and by estimating temperature gradient, the internal temperature can be found.
Question 8
Marks : +2 | -2
Pass Ratio : 100%
If temperature T1 of material A is equal to temperature T2 of material B, then which of the following are correct?
Explanation: If temperature of two materials are equal, no heat flow occurs between materials.