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Gearup-JE'19: Heat Transfer Quiz-2

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Question 1

Which of the following material has highest thermal conductivity?

Question 2

Which of the following is not true about Prandtl Number?

Question 3

The ratio of is known as

Question 4

If thermal conductivity of a material of wall varies as K_0 (1 + t), then the temperature at the centre of the wall as compared to that in case of constant thermal conductivity, will be __________.

Question 5

If Nusselt number is 3600 with corresponding Reynolds & Prandtl number as 60 & 30 respectively, the relevant Stanton number will be _________.

Question 6

The number which is used to the test the validity of lumped heat capacity approach?

Question 7

Heat transfer by radiation mainly depends upon _____________.

Question 8

For calculation of heat transfer by natural convection from a horizontal cylinder, what is the characteristic length in Grashof number?
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