Aromatics are desired constituents of

Thermal conductivity based continuous flue gas analyser makes use of varying thermal conductivity of the constituents of flue gases. Which of the following constituents of flue gases has the maximum thermal conductivity?

A

CO₂

B

N₂

C

O₂

D

CO

Presence of predominantly large quantity of aromatics (polynuclear) is not desirable in aviation fuel, because it has

A

High pour point and low smoke point

B

Low viscosity index

C

High self-ingnition temperature

D

All of the above

Furfural solvent extraction is used for upgrading (by dissolving aromatics)

A

Naphtha

B

Lubricating oils

C

Wax

D

Cracking feedstock

In petroleum refining, the process used for conversion of hydrocarbons to aromatics is

A

Catalytic cracking

B

Catalytic reforming

C

Hydrotreating

D

Alkylation

Solvent used in the Udex (glycol) extraction process for removal of light aromatics from cracked naphtha is

A

Propane

B

Diethylene glycol

C

Aqueous solution (10% water) of diethylene glycol

D

Methyl ethyl ketone (MEK)

Aromatics have the highes __________ of all the hydrocarbons of same carbon atoms.

A

Smoke point

B

Octane number

C

Cetane number

D

Viscosity

Presence of aromatics in

A

Diesel increases its cetane number

B

Kerosene increases its smoke point

C

Petrol increases its octane number

D

All of the above

For reactions in parallel viz A → P (desired product) and A → Q (unwanted product), if the order of the desired reaction is higher than that of the undesired reaction, a

A

Batch reactor is preferred over a single CSTR for high yield

B

Tubular reactor is preferred over a single CSTR for high yield

C

Both A and B

D

Single CSTR is the most suitable

'As a result of' his inconsistency 'in represent' his constituents, the senator was not 're elected' 'to the state' legislature.

A

as a result

B

in represent

C

re elected

D

to the state

As a result of his inconsistency in represent his constituents, the MP was not reclected to the Parliament in the country. Identify the word/phrase that must be changed in order for the sentences to be correct.

A

As a result

B

in represent

C

reelected

D

to

Aromatics are desired constituents of

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