A. zeroth law of thermodynamics
B. first law of thermodynamic
C. second law of the thermodynamics
D. Kirchoff’s law E. Stefan’s law
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When heat is transferred form hot body to cold body, in a straight line, without affecting the intervening medium, it is referred as heat transfer by __________________?
0
Heat is closely related with___________________?
A. conduction
B. convection
C. radiation
D. conduction and convection
E. convection and radiation
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The insulation ability of an insulator with the presence of moisture would_________________?
A. liquids
B. energy
C. temperature
D. entropy
E. enthalpy
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Thermal conductivity of non-metallic amorphous solids with decrease in temperature __________________?
A. increase
B. decrease
C. remain unaffected
D. may increase/decrease depending on temperature and thickness of insulation
E. none of the above
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Unit of thermal conductivity in M.K.S. units is ___________________?
A. increases
B. decreases
C. remains constant
D. may increase or decrease depending on temperature
E. unpredictable
0
When heat is transferred from one particle of hot body to another by actual motion of the heated particles, it is referred to as heat transfer by ___________________?
A. kcal/kg m2 °C
B. kcal-m/hr m2 °C
C. kcal/hr m2 °C
D. kcal-m/hr °C
E. kcal-m/m2 °C
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Thermal conductivity of solid metals with rise in temperature normally___________________?
A. conduction
B. convection
C. radiation
D. conduction and convection
E. convection and radiation
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Sensible heat is the heat required to __________________?
A. increases
B. decreases
C. remains constant
D. may increase or decrease depending on temperature
E. unpredictable