CHEMICAL ENGINEERING | Materials and Construction

Low carbon steels are those in which carbon percentage is around

Byadmin August 29, 2022

Question: Low carbon steels are those in which carbon percentage is around
[A].

0.1 to 0.35

[B].

0.4 to 0.7

[C].

0.8 to 1.5

[D].

1.5 to 2

Answer: Option A

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Chemical Process

Alcohol content in freshly prepared natural and fortified wine may be respectively around __________ percent.

Question: Alcohol content in freshly prepared natural and fortified wine may be respectively around __________ percent.
[A].

7-14 and 14-30
[B].
7-14 and 40-50
[C].
14 – 30 and 40-50
[D].
10 – 20 and 40 – 50

Answer: Option A

Explanation:

No answer description available for this question.

Read More Alcohol content in freshly prepared natural and fortified wine may be respectively around __________ percent.
CHEMICAL ENGINEERING | Chemical Engineering Basics

Which of the following represents the correct time-temperature curve when a block of metal is heated above room temperature & then left to cool in the room following Newton’s law of cooling in which the rate of temperature drop will go on decreasing with the passage of time.

Question: Which of the following represents the correct time-temperature curve when a block of metal is heated above room temperature & then left to cool in the room following Newton’s law of cooling in which the rate of temperature drop will go on decreasing with the passage of time.
[A].

[B].

[C].

[D].

Answer: Option C

Explanation:

No answer description available for this question.

Read More Which of the following represents the correct time-temperature curve when a block of metal is heated above room temperature & then left to cool in the room following Newton’s law of cooling in which the rate of temperature drop will go on decreasing with the passage of time.
CHEMICAL ENGINEERING | Fluid Mechanics

For laminar flow of Newtonion fluids through a circular pipe, for a given pressure drop and length & diameter of pipe, the velocity of fluid is proportional to(where, μ = fluid viscosity )

Question: For laminar flow of Newtonion fluids through a circular pipe, for a given pressure drop and length & diameter of pipe, the velocity of fluid is proportional to(where, μ = fluid viscosity )
[A].

μ
[B].
1/μ
[C].
μ
[D].
1/μ

Answer: Option B

Explanation:

No answer description available for this question.

Read More For laminar flow of Newtonion fluids through a circular pipe, for a given pressure drop and length & diameter of pipe, the velocity of fluid is proportional to(where, μ = fluid viscosity )
CHEMICAL ENGINEERING | Chemical Engineering Basics

About __________ ton of coke is required in a cupola to produce one ton of casting.

Question: About __________ ton of coke is required in a cupola to produce one ton of casting.
[A].

0.03
[B].
0.3
[C].
0.8
[D].
1.5

Answer: Option B

Explanation:

No answer description available for this question.

Read More About __________ ton of coke is required in a cupola to produce one ton of casting.
CHEMICAL ENGINEERING | Chemical Engineering Thermodynamics

An ideal liquid refrigerant should

Question: An ideal liquid refrigerant should
[A].

not have a subatmospheric vapour pressure at the temperature in the refrigerator coils.
[B].
not have unduly high vapour pressure at the condenser temperature.
[C].
both (a) and (b).
[D].
have low specific heat.

Answer: Option C

Explanation:

No answer description available for this question.

Read More An ideal liquid refrigerant should
CHEMICAL ENGINEERING | Fluid Mechanics

A bed of spherical particles (specific gravity 2.5) of uniform size 1500 μm is 0.5 m in diameter and 0.5 m high. In packed bed state, the porosity may be taken as 0.4. Ergun’s equation for the above fluid-particle system (in SI units) is given below : Δ P/L = 375 x 103 VOM + 10.94 x 106 V2OM (SI units) If water is to be used as the fluidising medium, in actual operation, the above bed has a height = 1 m. What is the porosity of the fluidised bed ?

Question: A bed of spherical particles (specific gravity 2.5) of uniform size 1500 μm is 0.5 m in diameter and 0.5 m high. In packed bed state, the porosity may be taken as 0.4. Ergun’s equation for the above fluid-particle system (in SI units) is given below : Δ P/L = 375 x 103 VOM + 10.94 x 106 V2OM (SI units) If water is to be used as the fluidising medium, in actual operation, the above bed has a height = 1 m. What is the porosity of the fluidised bed ?
[A].

0.2
[B].
0.5
[C].
0.7
[D].
0.8

Answer: Option C

Explanation:

No answer description available for this question.

Read More A bed of spherical particles (specific gravity 2.5) of uniform size 1500 μm is 0.5 m in diameter and 0.5 m high. In packed bed state, the porosity may be taken as 0.4. Ergun’s equation for the above fluid-particle system (in SI units) is given below : Δ P/L = 375 x 103 VOM + 10.94 x 106 V2OM (SI units) If water is to be used as the fluidising medium, in actual operation, the above bed has a height = 1 m. What is the porosity of the fluidised bed ?

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