CHEMICAL ENGINEERING | Chemical Reaction Engineering

For identical flow rate and feed composition, X plug flow reactors (PER) in series with a total volume V gives the same conversion as single

Byadmin August 11, 2022

Question: For identical flow rate and feed composition, X plug flow reactors (PER) in series with a total volume V gives the same conversion as single
[A].

CSTR of volume V

[B].

PFR of volume V

[C].

CSTR of volume V/X

[D].

PFR of volume V/X

Answer: Option B

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Fuels and Combustion

Coal is pulverised before burning in large capacity boiler furnaces mainly to

Question: Coal is pulverised before burning in large capacity boiler furnaces mainly to
[A].

ensure its complete combustion.
[B].
facilitate easy ash removal.
[C].
enhance its calorific value.
[D].
provide trouble free operation.

Answer: Option A

Explanation:

No answer description available for this question.

Read More Coal is pulverised before burning in large capacity boiler furnaces mainly to
CHEMICAL ENGINEERING | Chemical Engineering Thermodynamics

For an ideal gas, the activity co-efficient is

Question: For an ideal gas, the activity co-efficient is
[A].

directly proportional to pressure.
[B].
inversely proportional to pressure.
[C].
unity at all pressures.
[D].
none of these.

Answer: Option C

Explanation:

No answer description available for this question.

Read More For an ideal gas, the activity co-efficient is
CHEMICAL ENGINEERING | Fuels and Combustion

For the case of a fuel gas undergoing combustion with air, if the air/fuel ratio is increased, the adiabatic flame temperature will

Question: For the case of a fuel gas undergoing combustion with air, if the air/fuel ratio is increased, the adiabatic flame temperature will
[A].

increase
[B].
decrease
[C].
increase or decrease depending on the fuel type
[D].
not change

Answer: Option B

Explanation:

No answer description available for this question.

Read More For the case of a fuel gas undergoing combustion with air, if the air/fuel ratio is increased, the adiabatic flame temperature will
CHEMICAL ENGINEERING | Chemical Engineering Basics

In electrical resistance welding, distortion results from the use of improper

Question: In electrical resistance welding, distortion results from the use of improper
[A].

clamping methods
[B].
electrodes
[C].
current
[D].
filler material

Answer: Option A

Explanation:

No answer description available for this question.

Read More In electrical resistance welding, distortion results from the use of improper
CHEMICAL ENGINEERING | Mass Transfer

It takes 6 hours to dry a wet solid from 50% moisture content to the critical moisture content of 15%. How much longer it will take to dry the solid to 10% moisture content, under the same drying conditions? (The equilibrium moisture content of the solid is 5%).

Question: It takes 6 hours to dry a wet solid from 50% moisture content to the critical moisture content of 15%. How much longer it will take to dry the solid to 10% moisture content, under the same drying conditions? (The equilibrium moisture content of the solid is 5%).
[A].

15 min
[B].
51 min
[C].
71 min
[D].
94 min

Answer: Option C

Explanation:

No answer description available for this question.

Read More It takes 6 hours to dry a wet solid from 50% moisture content to the critical moisture content of 15%. How much longer it will take to dry the solid to 10% moisture content, under the same drying conditions? (The equilibrium moisture content of the solid is 5%).
CHEMICAL ENGINEERING | Fluid Mechanics

A centrifugal pump has the following specifications: Power = 4 H.P.; Speed = 800 rpmHead = 8 metresFlow = 1000 litres/minutes.If its speed is halved, the power consumed now will be __________ hp.

Question: A centrifugal pump has the following specifications: Power = 4 H.P.; Speed = 800 rpmHead = 8 metresFlow = 1000 litres/minutes.If its speed is halved, the power consumed now will be __________ hp.
[A].

0.5
[B].
2
[C].
4
[D].
1

Answer: Option A

Explanation:

No answer description available for this question.

Read More A centrifugal pump has the following specifications: Power = 4 H.P.; Speed = 800 rpmHead = 8 metresFlow = 1000 litres/minutes.If its speed is halved, the power consumed now will be __________ hp.

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