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Heat Transfer

is called the __________ number

CHEMICAL ENGINEERING, Heat Transfer / admin

Question: is called the __________ number
[A].

Peclet

[B].

Stanton

[C].

Graetz

[D].

none of these

Answer: Option C

Explanation:

No answer description available for this question.

is called the __________ number Read More »

CHEMICAL ENGINEERING, Heat Transfer

A graph between __________ is called Wilson plot.

CHEMICAL ENGINEERING, Heat Transfer / admin

Question: A graph between __________ is called Wilson plot.
[A].

[B].

[C].

v0.8 Vs . U

[D].

Answer: Option A

Explanation:

No answer description available for this question.

A graph between __________ is called Wilson plot. Read More »

CHEMICAL ENGINEERING, Heat Transfer

h.D/K is called the __________ number.

CHEMICAL ENGINEERING, Heat Transfer / admin

Question: h.D/K is called the __________ number.
[A].

Nusselt

[B].

Peclet

[C].

Rayleigh

[D].

Grashoff

Answer: Option A

Explanation:

No answer description available for this question.

h.D/K is called the __________ number. Read More »

CHEMICAL ENGINEERING, Heat Transfer

Convective heat transfer, in which heat is transferred by movement of warmed matter is described by

CHEMICAL ENGINEERING, Heat Transfer / admin

Question: Convective heat transfer, in which heat is transferred by movement of warmed matter is described by
[A].

Fourier’s law

[B].

Newton’s law of cooling

[C].

Fick’s law

[D].

none of these

Answer: Option B

Explanation:

No answer description available for this question.

Convective heat transfer, in which heat is transferred by movement of warmed matter is described by Read More »

CHEMICAL ENGINEERING, Heat Transfer

While the total emissivity of a perfect black body is unity, the same for a real body is

CHEMICAL ENGINEERING, Heat Transfer / admin

Question: While the total emissivity of a perfect black body is unity, the same for a real body is
[A].

0

[B].

1

[C].

> 1

[D].

between 0 and 1

Answer: Option D

Explanation:

No answer description available for this question.

While the total emissivity of a perfect black body is unity, the same for a real body is Read More »

CHEMICAL ENGINEERING, Heat Transfer

is termed as the __________ number.

CHEMICAL ENGINEERING, Heat Transfer / admin

Question: is termed as the __________ number.
[A].

Grashoff

[B].

Nusselt

[C].

Prandtl

[D].

Stanton

Answer: Option C

Explanation:

No answer description available for this question.

is termed as the __________ number. Read More »

CHEMICAL ENGINEERING, Heat Transfer

For small temperature difference, the heat transfer rate as per Newton’s law of cooling is proportional to (where, Δt = excess temperature)

CHEMICAL ENGINEERING, Heat Transfer / admin

Question: For small temperature difference, the heat transfer rate as per Newton’s law of cooling is proportional to (where, Δt = excess temperature)
[A].

Δt

[B].

Δt2

[C].

Δt3

[D].

Δt

Answer: Option A

Explanation:

No answer description available for this question.

For small temperature difference, the heat transfer rate as per Newton’s law of cooling is proportional to (where, Δt = excess temperature) Read More »

CHEMICAL ENGINEERING, Heat Transfer

In the free convection regime of pool boiling, the heat flux is proportional to

CHEMICAL ENGINEERING, Heat Transfer / admin

Question: In the free convection regime of pool boiling, the heat flux is proportional to
[A].

Δt1/2

[B].

Δt2

[C].

Δt5/4

[D].

Δt

Answer: Option C

Explanation:

No answer description available for this question.

In the free convection regime of pool boiling, the heat flux is proportional to Read More »

CHEMICAL ENGINEERING, Heat Transfer

For a multipass shell and tube heat exchanger, the LMTD correction factor is always

CHEMICAL ENGINEERING, Heat Transfer / admin

Question: For a multipass shell and tube heat exchanger, the LMTD correction factor is always
[A].

1

[B].

> 1

[C].

< 1

[D].

between 1 & 2

Answer: Option C

Explanation:

No answer description available for this question.

For a multipass shell and tube heat exchanger, the LMTD correction factor is always Read More »

CHEMICAL ENGINEERING, Heat Transfer

Crystallisation of solids from a homogeneous solution is a/an __________ process.

CHEMICAL ENGINEERING, Heat Transfer / admin

Question: Crystallisation of solids from a homogeneous solution is a/an __________ process.
[A].

exothermic

[B].

mildly endothermic

[C].

highly endothermic

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Crystallisation of solids from a homogeneous solution is a/an __________ process. Read More »

CHEMICAL ENGINEERING, Heat Transfer