Heat Transfer (3151909) MCQ

MCQs of Conduction

MCQ No - 1

Thermal conductivity is maximum for which substance

(A)

Silver

(B)

Ice

(C)

Aluminum

(D)

Diamond


D
MCQ No - 2

Fourier law of heat conduction is best represented by

(A)

Q = -k A (d T /d x)

(B)

Q = k A (d x/d T)

(C)

Q = -k A 

(D)

Q = k (d T/d x)


A
MCQ No - 3

The negative sign in the Fourier heat conduction equation indicates

(A)

Heat always flow is in the direction of positive temperature gradient

(B)

Heat always flow in the direction of negative temperature gradient

(C)

No heat flow is there

(D)

Data is insufficient


B
MCQ No - 4

“Thermal conductivity represents the amount of heat conducted across the unit area when a temperature difference of one kelvin”.

(A)

TRUE

(B)

FALSE


B
MCQ No - 5

Which of the following is the unit of thermal resistance?

(A)

°C/kcal

(B)

hour degree

(C)

s °C/kcal

(D)

°C/W


D