ONLINE MCQ ME-Heat Transfer 1

ONLINE MCQ ME-Heat Transfer 1

ONLINE MCQ ME-Heat Transfer 1

Category –ME Online Test

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Attempt Free ONLINE MCQ ME-Heat Transfer 1 Here. Read The Important Mechanical MCQ From Below.

Q1. Unit of thermal conductivity in M.K.S. units is

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.

Ans. B

Q2. Unit of thermal conductivity in S.I. units is

A.  J/m2 sec
B.  J/m °K sec
C.  W/m °K
D.  (a) and (c) above
E.  (b) and (c) above.

Ans. E

ONLINE MCQ ME-Heat Transfer 1

Q3. Thermal conductivity of solid metals with rise in temperature normally

A.  increases
B.  decreases
C.  remains constant
D.  may increase or decrease depending on temperature
E.  unpredictable.

Ans. B

Q4. Thermal conductivity of non-metallic amorphous solids with decrease in temperature

A.  increases
B.  decreases
C.  remains constant
D.  may increase or decrease depending on temperature
E.  unpredictable.

Ans. B

Q5. 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.  conduction
B.  convection
C.  radiation
D.  conduction and convection
E.  convection and radiation.

Ans. A