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In forced convection, the heat transfer depends on

CHEMICAL ENGINEERING, Heat Transfer / admin

Question: In forced convection, the heat transfer depends on
[A].

Re, Pr

[B].

Re, Gr

[C].

mainly Gr

[D].

Re only

Answer: Option A

Explanation:

No answer description available for this question.

In forced convection, the heat transfer depends on Read More »

Natural convection is characterised by

CHEMICAL ENGINEERING, Heat Transfer / admin

Question: Natural convection is characterised by
[A].

Grashhoff number

[B].

Peclet number

[C].

Reynolds number

[D].

Prandtl number

Answer: Option A

Explanation:

No answer description available for this question.

Natural convection is characterised by Read More »

CHEMICAL ENGINEERING, Heat Transfer

Conduction occurs in the buffer zone for a fluid flowing through a heated pipe, only when Prandtl number is

CHEMICAL ENGINEERING, Heat Transfer / admin

Question: Conduction occurs in the buffer zone for a fluid flowing through a heated pipe, only when Prandtl number is
[A].

0.1

[B].

[C].

< 1

[D].

Answer: Option A

Explanation:

No answer description available for this question.

Conduction occurs in the buffer zone for a fluid flowing through a heated pipe, only when Prandtl number is Read More »

CHEMICAL ENGINEERING, Heat Transfer

At Pr > 1, conduction in an ordinary fluid flowing through a heated pipe is limited to the

CHEMICAL ENGINEERING, Heat Transfer / admin

Question: At Pr > 1, conduction in an ordinary fluid flowing through a heated pipe is limited to the
[A].

buffer zone

[B].

turbulent core

[C].

both (a) and (b)

[D].

viscous sub-layer

Answer: Option D

Explanation:

No answer description available for this question.

At Pr > 1, conduction in an ordinary fluid flowing through a heated pipe is limited to the Read More »

CHEMICAL ENGINEERING, Heat Transfer

Discipline is on the wane in schools and colleges these days.

Idioms And Phrases, Verbal Ability / admin

Question: Discipline is on the wane in schools and colleges these days.
[A].

declining

[B].

increasing

[C].

spreading

[D].

spiralling

Answer: Option A

Explanation:

No answer description available for this question.

Discipline is on the wane in schools and colleges these days. Read More »

Idioms And Phrases, Verbal Ability

Heat transfer co-efficient (h1) for liquids increases with

CHEMICAL ENGINEERING, Heat Transfer / admin

Question: Heat transfer co-efficient (h1) for liquids increases with
[A].

increasing temperature.

[B].

decreasing temperature.

[C].

decreasing Reynolds number.

[D].

none of these.

Answer: Option A

Explanation:

No answer description available for this question.

Heat transfer co-efficient (h1) for liquids increases with Read More »

CHEMICAL ENGINEERING, Heat Transfer

Fouling factor

CHEMICAL ENGINEERING, Heat Transfer / admin

Question: Fouling factor
[A].

is a dimensionless quantity.

[B].

does not provide a safety factor for design.

[C].

accounts for additional resistances to heat flow.

[D].

none of these.

Answer: Option C

Explanation:

No answer description available for this question.

Fouling factor Read More »

CHEMICAL ENGINEERING, Heat Transfer

Nusselt number is the ratio of the

CHEMICAL ENGINEERING, Heat Transfer / admin

Question: Nusselt number is the ratio of the
[A].

temperature gradient of the wall to that across the entire pipe.

[B].

temperature difference to the temperature gradient at the wall.

[C].

heat flux at the wall to that across the entire pipe.

[D].

none of these

Answer: Option C

Explanation:

No answer description available for this question.

Nusselt number is the ratio of the Read More »

CHEMICAL ENGINEERING, Heat Transfer

The case was held over due to the great opposition to it.

Idioms And Phrases, Verbal Ability / admin

Question: The case was held over due to the great opposition to it.
[A].

stopped

[B].

postponed

[C].

dropped

[D].

cancelled

Answer: Option B

Explanation:

No answer description available for this question.

The case was held over due to the great opposition to it. Read More »

Idioms And Phrases, Verbal Ability

Heat flux is the time rate of heat transfer per unit

CHEMICAL ENGINEERING, Heat Transfer / admin

Question: Heat flux is the time rate of heat transfer per unit
[A].

length

[B].

area

[C].

volume

[D].

none of these

Answer: Option B

Explanation:

No answer description available for this question.

Heat flux is the time rate of heat transfer per unit Read More »

CHEMICAL ENGINEERING, Heat Transfer

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