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Film boiling is usually not desired in commercial equipments, because

CHEMICAL ENGINEERING, Heat Transfer /
Question: Film boiling is usually not desired in commercial equipments, because
[A].

the heat transfer rate is low in view of the large temperature drop.

[B].

it is difficult to maintain.

[C].

it is not economic.

[D].

none of these.

Answer: Option A

Explanation:

No answer description available for this question.

Film boiling is usually not desired in commercial equipments, because Read More »

CHEMICAL ENGINEERING, Heat Transfer

Although both the parents are running the show for the last ten years but their business is now on its last legs.

Idioms And Phrases, Verbal Ability /
Question: Although both the parents are running the show for the last ten years but their business is now on its last legs.
[A].

About to fructify

[B].

About to perish

[C].

About to produce results

[D].

About to take off

Answer: Option B

Explanation:

No answer description available for this question.

Although both the parents are running the show for the last ten years but their business is now on its last legs. Read More »

Idioms And Phrases, Verbal Ability

All analogy equations connecting friction factor and heat transfer co-efficient apply only to

CHEMICAL ENGINEERING, Heat Transfer /
Question: All analogy equations connecting friction factor and heat transfer co-efficient apply only to
[A].

wall or skin friction

[B].

form friction

[C].

both (a) and (b)

[D].

turbulent flow

Answer: Option A

Explanation:

No answer description available for this question.

All analogy equations connecting friction factor and heat transfer co-efficient apply only to Read More »

CHEMICAL ENGINEERING, Heat Transfer

If average heat transfer co-efficient is ha and the local coefficient at the end of the plate is hl then in case of heat transfer to a fluid flowing over a flat plate, heated over its entire length

CHEMICAL ENGINEERING, Heat Transfer /
Question: If average heat transfer co-efficient is ha and the local coefficient at the end of the plate is hl then in case of heat transfer to a fluid flowing over a flat plate, heated over its entire length
[A].

ha = hl

[B].

ha = 2hl

[C].

ha = 0.5 hl

[D].

ha = 0.75 hl

Answer: Option B

Explanation:

No answer description available for this question.

If average heat transfer co-efficient is ha and the local coefficient at the end of the plate is hl then in case of heat transfer to a fluid flowing over a flat plate, heated over its entire length Read More »

CHEMICAL ENGINEERING, Heat Transfer

For a liquid in laminar flow through a very long tube, when the exit fluid temperature approaches the wall temperature, the equation to be used is

CHEMICAL ENGINEERING, Heat Transfer /
Question: For a liquid in laminar flow through a very long tube, when the exit fluid temperature approaches the wall temperature, the equation to be used is
[A].

Nu = 0.023 Re0.8 . Pr0.4

[B].

Nu = Gz

[C].

Nu = Gz

[D].

Nu = 2Gz0.5

Answer: Option C

Explanation:

No answer description available for this question.

For a liquid in laminar flow through a very long tube, when the exit fluid temperature approaches the wall temperature, the equation to be used is Read More »

CHEMICAL ENGINEERING, Heat Transfer

The autographed bat from the famous cricketer Sunil Gavaskar is worth a jew’s eye

Idioms And Phrases, Verbal Ability /
Question: The autographed bat from the famous cricketer Sunil Gavaskar is worth a jew’s eye
[A].

Not a worthy possession

[B].

unnecessary

[C].

A costly items

[D].

A possession of high value

Answer: Option D

Explanation:

No answer description available for this question.

The autographed bat from the famous cricketer Sunil Gavaskar is worth a jew’s eye Read More »

Idioms And Phrases, Verbal Ability

Dietus-Boelter equation used for the determination of heat transfer co-efficient is valid

CHEMICAL ENGINEERING, Heat Transfer /
Question: Dietus-Boelter equation used for the determination of heat transfer co-efficient is valid
[A].

for fluids in laminar flow.

[B].

for fluids in tubulent flow.

[C].

when Grashhoff number is very important.

[D].

for liquid metals.

Answer: Option B

Explanation:

No answer description available for this question.

Dietus-Boelter equation used for the determination of heat transfer co-efficient is valid Read More »

CHEMICAL ENGINEERING, Heat Transfer