Mechanical Engineering Mcqs

Thermal conductivity of a material may be defined as the________________?

(A)  quantity of heat flowing in one second through one cm cube of material when opposite faces ^re maintained at a temperature difference of 1°C

(B)  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 1°C

(C)  heat conducted in unit time across unit area through unit thickness when a temperature difference of unity is maintained between opposite faces

(D)  all of the above

(E)  none of the above

Submitted By :Ali Uppal

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