Presence of aromatics in

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

Aromatics are desired constituents of

A

Lubricating oil

B

Diesel

C

Kerosene

D

Petrol

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

The presence of students is important _______ here.

A

Subject differs from verb

B

Subject agrees with verb

C

Subject and verb don not go together

D

Subject is in plural number

Fill in the blanks : ------particular presence, please be specific.

A

If you, any however, have

B

However, you have any

C

However, if you have any

D

However, you may have any

Special heat sensors on the front of the rattlesnake head enable it___ to detect the presence fo prey in the dark____ to strike its victim accurately.

A

in addition/due

B

not only/ but aslo

C

whether/or

D

either/or

Which of the following defines best the word in bold-letter in the sentence ''The lonely path, the dark night and the howling dog all seemed to FORESHADOW the mysterious presence'

A

hint of past events

B

deceive the reader

C

provide clues to what will occur later

D

create awe

Presence of aromatics in

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