CHEMICAL ENGINEERING | Fuels and Combustion

“Overfire burning” in a furnace is a phenomenon characterised by the

Byadmin August 17, 2022

Question: “Overfire burning” in a furnace is a phenomenon characterised by the
[A].

supply of excess fuel.

[B].

supply of excess air.

[C].

burning of carbon monoxide and other incombustibles in upper zone of furnace by supplying more air.

[D].

none of these.

Answer: Option C

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Heat Transfer

For a counter current heat exchanger with Tih = 80°C, T°c = 60°C, T°h = 50°C and Tic = 30°C, and the temperature difference between the two streams being the same everywhere along Z, the direction of flow of hot fluid. The temperature profile should satisfy

Question: For a counter current heat exchanger with Tih = 80°C, T°c = 60°C, T°h = 50°C and Tic = 30°C, and the temperature difference between the two streams being the same everywhere along Z, the direction of flow of hot fluid. The temperature profile should satisfy
[A].

[B].

[C].

[D].

Answer: Option B

Explanation:

No answer description available for this question.

Read More For a counter current heat exchanger with Tih = 80°C, T°c = 60°C, T°h = 50°C and Tic = 30°C, and the temperature difference between the two streams being the same everywhere along Z, the direction of flow of hot fluid. The temperature profile should satisfy
CHEMICAL ENGINEERING | Mass Transfer

As the reflux ratio increases, the slope of the operating line for rectifying section

Question: As the reflux ratio increases, the slope of the operating line for rectifying section
[A].

increases
[B].
decreases
[C].
remains constant
[D].
data insufficient, cannot be predicted

Answer: Option A

Explanation:

No answer description available for this question.

Read More As the reflux ratio increases, the slope of the operating line for rectifying section
CHEMICAL ENGINEERING | Chemical Engineering Basics

Iron has got __________ isotopes.

Question: Iron has got __________ isotopes.
[A].

no
[B].
four
[C].
three
[D].
two

Answer: Option B

Explanation:

No answer description available for this question.

Read More Iron has got __________ isotopes.
CHEMICAL ENGINEERING | Mass Transfer

For stripping of a gas in a counter current stripper, the operating line

Question: For stripping of a gas in a counter current stripper, the operating line
[A].

lies above the equilibrium curve.
[B].
lies below the equilibrium curve.
[C].
can lie above or below the equilibrium curve.
[D].
is always parallel to the equilibrium curve.

Answer: Option C

Explanation:

No answer description available for this question.

Read More For stripping of a gas in a counter current stripper, the operating line
CHEMICAL ENGINEERING | Fluid Mechanics

Co-efficient of discharge (Cd) is defined as actual discharge/theoretical discharge and is equal to Cc . Cv; where Cc = Co-efficient of contraction and Cv = co-efficient of velocity. Cd of an orifice is usually about

Question: Co-efficient of discharge (Cd) is defined as actual discharge/theoretical discharge and is equal to Cc . Cv; where Cc = Co-efficient of contraction and Cv = co-efficient of velocity. Cd of an orifice is usually about
[A].

0.42
[B].
0.62
[C].
0.82
[D].
0.98

Answer: Option B

Explanation:

No answer description available for this question.

Read More Co-efficient of discharge (Cd) is defined as actual discharge/theoretical discharge and is equal to Cc . Cv; where Cc = Co-efficient of contraction and Cv = co-efficient of velocity. Cd of an orifice is usually about
Fuels and Combustion

Atomising steam to fuel oil ratio in a burner should be around__________________?

Atomising steam to fuel oil ratio in a burner should be around__________________?

A. 0.5
B. 1.5
C. 2.5
D. 3.5

Read More Atomising steam to fuel oil ratio in a burner should be around__________________?

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