In case of a multipass shell and tube heat exchanger, providing a baffle on the shell side __________ the heat transfer rate.

Byadmin August 25, 2022

Question: In case of a multipass shell and tube heat exchanger, providing a baffle on the shell side __________ the heat transfer rate.
[A].

increases

[B].

decreases

[C].

does not affect

[D].

may increase or decrease, depends on the type of baffle

Answer: Option A

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Heat Transfer

Economy of a multiple effect evaporator is not influenced much by the

Question: Economy of a multiple effect evaporator is not influenced much by the
[A].

boiling point elevations
[B].
temperature of the feed
[C].
rate of heat transfer
[D].
ratio of the weight of the thin liquor to thick liquor

Answer: Option A

Explanation:

No answer description available for this question.

Read More Economy of a multiple effect evaporator is not influenced much by the
CHEMICAL ENGINEERING | Materials and Construction

Most common stainless steel type 316, which is highly resistant to corrosion contains

Question: Most common stainless steel type 316, which is highly resistant to corrosion contains
[A].

16-13% Cr 10-14% Ni and 2-3% Mo.
[B].
20-22% Cr, and 8-10% Ni.
[C].
2-4% Cr, 22% NI and 2-4% Mo.
[D].
none of these.

Answer: Option A

Explanation:

No answer description available for this question.

Read More Most common stainless steel type 316, which is highly resistant to corrosion contains
CHEMICAL ENGINEERING

Normalising does not ______________________ of a metal ?

Normalising does not ______________________ of a metal ?

A. Improve machinability & tensile strength
B. Remove internal stresses
C. Refine the structure
D. Remove strains caused by cold working

Read More Normalising does not ______________________ of a metal ?
CHEMICAL ENGINEERING | Furnace Technology

Out of the following fuels used in a furnace exhausting flue gas at a temperature of 600°C, the percentage stack loss will be maximum in case of complete combustion of

Question: Out of the following fuels used in a furnace exhausting flue gas at a temperature of 600°C, the percentage stack loss will be maximum in case of complete combustion of
[A].

furnace oil with air.
[B].
furnace oil with oxygen.
[C].
blast furnace gas with air.
[D].
blast furnace gas with oxygen.

Answer: Option C

Explanation:

No answer description available for this question.

Read More Out of the following fuels used in a furnace exhausting flue gas at a temperature of 600°C, the percentage stack loss will be maximum in case of complete combustion of
CHEMICAL ENGINEERING | Heat Transfer

A 10 cm dia steam pipe, carrying steam at 180°C, is covered with an insulation (conductivity = 0.6 W/m.°C). It losses heat to the surroundings at 30°C. Assume a heat transfer co-efficient of 0.8 W/m2.°C for heat transfer from surface to the surroundings. Neglect wall resistance of the pipe and film resistance of steam. If the insulation thickness is 2 cms, the rate of heat loss from this insulated pipe will be

Question: A 10 cm dia steam pipe, carrying steam at 180°C, is covered with an insulation (conductivity = 0.6 W/m.°C). It losses heat to the surroundings at 30°C. Assume a heat transfer co-efficient of 0.8 W/m2.°C for heat transfer from surface to the surroundings. Neglect wall resistance of the pipe and film resistance of steam. If the insulation thickness is 2 cms, the rate of heat loss from this insulated pipe will be
[A].

greater than that for uninsulated steam pipe.
[B].
less than that of the uninsulated steam pipe.
[C].
equal to that of the uninsulated steam pipe.
[D].
less than the steam pipe with 5 cms insulation.

Answer: Option B

Explanation:

No answer description available for this question.

Read More A 10 cm dia steam pipe, carrying steam at 180°C, is covered with an insulation (conductivity = 0.6 W/m.°C). It losses heat to the surroundings at 30°C. Assume a heat transfer co-efficient of 0.8 W/m2.°C for heat transfer from surface to the surroundings. Neglect wall resistance of the pipe and film resistance of steam. If the insulation thickness is 2 cms, the rate of heat loss from this insulated pipe will be
CHEMICAL ENGINEERING | Chemical Engineering Basics

A boy weighing 110lb climbs up a 50 ft high vertical destination in 100 seconds. Horse power of the boy is __________ hp.

Question: A boy weighing 110lb climbs up a 50 ft high vertical destination in 100 seconds. Horse power of the boy is __________ hp.
[A].

0.1
[B].
0.5
[C].
0.8
[D].
1

Answer: Option A

Explanation:

No answer description available for this question.

Read More A boy weighing 110lb climbs up a 50 ft high vertical destination in 100 seconds. Horse power of the boy is __________ hp.

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