Related Questions

Steam reforming of naphtha is a source of hydrogen production for nitrogeneous fertiliser industry. What is the usual ratio of steam to carbon maintained in the process of steam reforming of naphtha?
A 1.5:1
B 3.5:1
C 10:1
D 15:1
The distillation carried out in such a way that the liquid with the lowest boiling point is first evaporated and re-condensed, then the liquid with the next higher boiling point is then evaporated and re-condensed, and so on until all the available liquid fuels are separately recovered in the sequence of their boiling points. Such a process is called
A Cracking
B Fractional distillation
C Full distillation
D Carbonisation
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)
Which one of the following keyboard short cuts is cuts is used to find a specific word in a MS word document?
A Ctrl + C
B Ctrl + X
C Ctrl + F
D Ctrl + S
Most commonly used solvent in oil paints, is
A Petroleum
B Spirit
C Coal tar
D Turpentine
Commercially ethylene is produced from naphtha by
A Catalytic cracking
B Catalytic dehydrogenation
C Pyrolysis
D Hydrocracking
Aruna cut a cake into two halves and cuts one half into smaller pieces of equal size. Each of the small pieces is twenty grams in weight. If she has seven pieces of the cake in all with her, how heavy was the original cake ?
A 120 grams
B 140 grams
C 240 grams
D 280 grams
E None of these
In spite of large heat transfer co-efficients in boiling liquids, fins are used advantageously, where the entire surface is exposed to __________ boiling.
A Film
B Nucleate
C Transition
D All of the above
Cylindrical storage tanks used for the storage of volatile liquids (e.g., naphtha) have __________ roofs.
A Conical
B Flat
C Floating
D Fixed
In case of dry spinning of polymers, the polymer solution in a volatile solvent is forced through the spinnerates into a warm air chamber, where the solvent evaporates leaving behind the polymer in the filament form. Dry spinning is used for __________ fibres.
A Polythene
B PVC
C Rayon
D Polyvinyl acetate

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