CHEMICAL ENGINEERING | Fuels and Combustion

Which will have the least volatile matter and hence will be the most difficult to ignite?

Byadmin August 17, 2022

Question: Which will have the least volatile matter and hence will be the most difficult to ignite?
[A].

Bituminous coal

[B].

Coke

[C].

Semi-bituminous coal

[D].

Aanthracite

Answer: Option B

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Heat Transfer

A fluid is flowing inside the inner tube of a double pipe heat exchanger with diameter ‘d’. For a fixed mass flow rate, the tube side heat transfer co-efficient for turbulent flow conditions is proportional to

Question: A fluid is flowing inside the inner tube of a double pipe heat exchanger with diameter ‘d’. For a fixed mass flow rate, the tube side heat transfer co-efficient for turbulent flow conditions is proportional to
[A].

d0.8
[B].
d-0.2
[C].
d-1
[D].
d-1.8

Answer: Option B

Explanation:

No answer description available for this question.

Read More A fluid is flowing inside the inner tube of a double pipe heat exchanger with diameter ‘d’. For a fixed mass flow rate, the tube side heat transfer co-efficient for turbulent flow conditions is proportional to
CHEMICAL ENGINEERING | Chemical Engineering Basics

Maraging steels derive their strength from the following mechanism:

Question: Maraging steels derive their strength from the following mechanism:
[A].

A fine, highly dislocated and strong martensite.
[B].
Fine dispersions of intermetallics of Fe, Ni, Ti etc.
[C].
Fine dispersions of alloy carbides in a ferrite matrix.
[D].
Fine dispersions of Fe3 C nucleated on dislocations in austenite.

Answer: Option A

Explanation:

No answer description available for this question.

Read More Maraging steels derive their strength from the following mechanism:
CHEMICAL ENGINEERING | Chemical Engineering Basics

A friction lighter is normally used for lighting gas welding torch, because of the reason that

Question: A friction lighter is normally used for lighting gas welding torch, because of the reason that
[A].

its initial cost is very low.
[B].
duration of spark created is very small.
[C].
safety of welder is ensured.
[D].
it is easier to operate & maintain.

Answer: Option C

Explanation:

No answer description available for this question.

Read More A friction lighter is normally used for lighting gas welding torch, because of the reason that
Fuels and Combustion | MCQs / Q&A

Stack heat losses can be minimised by________________?

Stack heat losses can be minimised by________________?

A. Controlling the excess air
B. Oxygen enrichment of combustion air
C. Using low c.v. fuels
D. Maintaining proper draft in the furnace

Read More Stack heat losses can be minimised by________________?
CHEMICAL ENGINEERING | Mass Transfer

In extraction, as the temperature increases, the area of hetrogeneity (area covered by binodal curve)

Question: In extraction, as the temperature increases, the area of hetrogeneity (area covered by binodal curve)
[A].

decreases
[B].
increases
[C].
remains unchanged
[D].
none of these

Answer: Option A

Explanation:

No answer description available for this question.

Read More In extraction, as the temperature increases, the area of hetrogeneity (area covered by binodal curve)
CHEMICAL ENGINEERING | Chemical Reaction Engineering

With increase in the order of reaction (for all positive reaction orders), the ratio of the volume of mixed reactor to the volume of plug flow reactor (for identical feed composition, flow rate and conversion)

Question: With increase in the order of reaction (for all positive reaction orders), the ratio of the volume of mixed reactor to the volume of plug flow reactor (for identical feed composition, flow rate and conversion)
[A].

increases
[B].
decreases
[C].
remains same
[D].
increases linearly

Answer: Option A

Explanation:

No answer description available for this question.

Read More With increase in the order of reaction (for all positive reaction orders), the ratio of the volume of mixed reactor to the volume of plug flow reactor (for identical feed composition, flow rate and conversion)

Similar Posts