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Mechanical Engineering Mcqs
Q
Thermal conductivity of a material may be defined as the________________?
AA. Quantity of heat flowing in one second through one cm cube of material when opposite faces ^re maintained at a temperature difference of 1Β°c
BB. Quantity of heat flowing in one second through a slab of the material of area one cm square, thickness 1 cm when its faces differ in temperature by 1Β°c
CC. Heat conducted in unit time across unit area through unit thickness when a temperature difference of unity is maintained between opposite faces
